| 9608df41 |
1 | /* $Id$ */ |
| 2 | |
| 3 | #include "AliHighMultiplicitySelector.h" |
| 4 | |
| 5 | #include <TVector3.h> |
| 6 | #include <TFile.h> |
| 7 | #include <TH1F.h> |
| 8 | #include <TH2F.h> |
| 9 | #include <TNtuple.h> |
| 10 | #include <TProfile.h> |
| 11 | #include <TParticle.h> |
| 12 | #include <TCanvas.h> |
| 13 | #include <TTree.h> |
| 14 | #include <TGeoManager.h> |
| 15 | #include <TF1.h> |
| 16 | #include <TGraph.h> |
| 17 | #include <TLegend.h> |
| 18 | #include <TLine.h> |
| dd367a14 |
19 | #include <TMath.h> |
| b3b260d1 |
20 | #include <TLegend.h> |
| 21 | #include <TText.h> |
| 9608df41 |
22 | |
| 23 | #include <AliLog.h> |
| 24 | #include <AliESD.h> |
| 25 | #include <AliRunLoader.h> |
| 26 | #include <AliStack.h> |
| 27 | |
| 28 | #include <AliITSgeom.h> |
| 29 | #include <AliITSLoader.h> |
| 30 | #include <AliITSdigitSPD.h> |
| 31 | #include <AliITSRecPoint.h> |
| 32 | |
| 33 | #include "AliPWG0Helper.h" |
| 34 | |
| 35 | // |
| a9aed06c |
36 | // Selector that produces plots needed for the high multiplicity analysis with the |
| 37 | // pixel detector |
| 38 | // Needs cluster file |
| 9608df41 |
39 | // |
| 40 | |
| 41 | ClassImp(AliHighMultiplicitySelector) |
| 42 | |
| 43 | AliHighMultiplicitySelector::AliHighMultiplicitySelector() : |
| 44 | AliSelectorRL(), |
| 45 | fChipsLayer1(0), |
| 46 | fChipsLayer2(0), |
| 47 | fL1vsL2(0), |
| 48 | fMvsL1(0), |
| 49 | fMvsL2(0), |
| 50 | fChipsFired(0), |
| 51 | fPrimaryL1(0), |
| 52 | fPrimaryL2(0), |
| 53 | fClusterZL1(0), |
| 54 | fClusterZL2(0), |
| 55 | fClvsL1(0), |
| 56 | fClvsL2(0), |
| a9aed06c |
57 | fCentralRegion(kFALSE) |
| 9608df41 |
58 | { |
| 59 | // |
| 60 | // Constructor. Initialization of pointers |
| 61 | // |
| 62 | } |
| 63 | |
| 64 | AliHighMultiplicitySelector::~AliHighMultiplicitySelector() |
| 65 | { |
| 66 | // |
| 67 | // Destructor |
| 68 | // |
| 69 | |
| 70 | // histograms are in the output list and deleted when the output |
| 71 | // list is deleted by the TSelector dtor |
| 72 | } |
| 73 | |
| 74 | void AliHighMultiplicitySelector::SlaveBegin(TTree *tree) |
| 75 | { |
| a9aed06c |
76 | // create histograms |
| 77 | |
| 9608df41 |
78 | AliSelectorRL::SlaveBegin(tree); |
| 79 | |
| 80 | fChipsFired = new TH2F("fChipsFired", ";Module;Chip;Count", 240, -0.5, 239.5, 5, -0.5, 4.5); |
| 81 | |
| 82 | fPrimaryL1 = new TNtuple("fPrimaryL1", "", "multiplicity:firedChips:chipsByPrimaries:clusters"); |
| 83 | fPrimaryL2 = new TNtuple("fPrimaryL2", "", "multiplicity:firedChips:chipsByPrimaries:clusters"); |
| 84 | |
| 85 | fClusterZL1 = new TH1F("fClusterZL1", ";z", 400, -20, 20); |
| 86 | fClusterZL2 = new TH1F("fClusterZL2", ";z", 400, -20, 20); |
| 87 | } |
| 88 | |
| 89 | void AliHighMultiplicitySelector::Init(TTree* tree) |
| 90 | { |
| 91 | // read the user objects |
| 92 | |
| 93 | AliSelectorRL::Init(tree); |
| 94 | |
| 95 | // enable only the needed branches |
| 96 | if (tree) |
| 97 | { |
| 98 | tree->SetBranchStatus("*", 0); |
| 99 | tree->SetBranchStatus("fTriggerMask", 1); |
| 100 | |
| 101 | /*if (fTree->GetCurrentFile()) |
| 102 | { |
| 103 | TString fileName(fTree->GetCurrentFile()->GetName()); |
| 104 | fileName.ReplaceAll("AliESDs", "geometry"); |
| 105 | |
| 106 | // load geometry |
| 107 | TGeoManager::Import(fileName); |
| 108 | }*/ |
| 109 | } |
| 110 | } |
| 111 | |
| 112 | Bool_t AliHighMultiplicitySelector::Process(Long64_t entry) |
| 113 | { |
| 114 | // |
| 115 | // processing |
| 116 | // |
| 117 | |
| 118 | if (AliSelectorRL::Process(entry) == kFALSE) |
| 119 | return kFALSE; |
| 120 | |
| 121 | // Check prerequisites |
| 122 | if (!fESD) |
| 123 | { |
| 124 | AliDebug(AliLog::kError, "ESD branch not available"); |
| 125 | return kFALSE; |
| 126 | } |
| 127 | |
| 69b09e3b |
128 | Bool_t eventTriggered = AliPWG0Helper::IsEventTriggered(fESD->GetTriggerMask(), AliPWG0Helper::kMB1); |
| 9608df41 |
129 | |
| 130 | if (!eventTriggered) |
| 131 | { |
| 132 | AliDebug(AliLog::kDebug, "Event not triggered. Skipping."); |
| 133 | return kTRUE; |
| 134 | } |
| 135 | |
| 136 | AliStack* stack = GetStack(); |
| 137 | if (!stack) |
| 138 | { |
| 139 | AliDebug(AliLog::kError, "Stack not available"); |
| 140 | return kFALSE; |
| 141 | } |
| 142 | |
| 143 | Int_t nPrim = stack->GetNprimary(); |
| 144 | Int_t multiplicity21 = 0; |
| 145 | Int_t multiplicity16 = 0; |
| 146 | |
| 147 | for (Int_t iMc = 0; iMc < nPrim; ++iMc) |
| 148 | { |
| 149 | AliDebug(AliLog::kDebug+1, Form("MC Loop: Processing particle %d.", iMc)); |
| 150 | |
| 151 | TParticle* particle = stack->Particle(iMc); |
| 152 | |
| 153 | if (!particle) |
| 154 | { |
| 155 | AliDebug(AliLog::kError, Form("UNEXPECTED: particle with label %d not found in stack (mc loop).", iMc)); |
| 156 | continue; |
| 157 | } |
| 158 | |
| 159 | if (AliPWG0Helper::IsPrimaryCharged(particle, nPrim) == kFALSE) |
| 160 | continue; |
| 161 | |
| a9aed06c |
162 | if (fCentralRegion) |
| 9608df41 |
163 | { |
| 164 | if (TMath::Abs(particle->Eta()) < 1.05) |
| 165 | multiplicity21++; |
| 166 | if (TMath::Abs(particle->Eta()) < 0.8) |
| 167 | multiplicity16++; |
| 168 | } |
| 169 | else |
| 170 | { |
| 171 | if (TMath::Abs(particle->Eta()) < 2.1) |
| 172 | multiplicity21++; |
| 173 | if (TMath::Abs(particle->Eta()) < 1.6) |
| 174 | multiplicity16++; |
| 175 | } |
| 176 | }// end of mc particle |
| 177 | |
| 178 | AliRunLoader* runLoader = GetRunLoader(); |
| 179 | if (!runLoader) |
| 180 | { |
| 181 | AliDebug(AliLog::kError, "runloader not available"); |
| 182 | return kFALSE; |
| 183 | } |
| 184 | |
| 185 | // TDirectory::TContext restores the current directory is restored when the scope ends. |
| 186 | // This helps around ROOT bug #26025 and is good behaviour anyway |
| 187 | TDirectory::TContext context(0); |
| 188 | AliITSLoader* loader = (AliITSLoader*) runLoader->GetLoader( "ITSLoader" ); |
| 189 | loader->LoadDigits("READ"); |
| 190 | TTree* treeD = loader->TreeD(); |
| 191 | if (!treeD) |
| 192 | { |
| 193 | AliDebug(AliLog::kError, "Could not retrieve TreeD of ITS"); |
| 194 | return kFALSE; |
| 195 | } |
| 196 | |
| 197 | treeD->SetBranchStatus("*", 0); |
| 198 | treeD->SetBranchStatus("ITSDigitsSPD.fTracks*", 1); |
| 199 | treeD->SetBranchStatus("ITSDigitsSPD.fCoord1", 1); |
| 200 | |
| 201 | TClonesArray* digits = 0; |
| 202 | treeD->SetBranchAddress("ITSDigitsSPD", &digits); |
| a6e0ebfe |
203 | if (digits) |
| 9608df41 |
204 | digits->Clear(); |
| 205 | |
| 206 | // each value for both layers |
| 207 | Int_t totalNumberOfFO[2]; |
| 208 | Int_t chipsHitByPrimaries[2]; |
| 209 | //Int_t chipsHitBySecondaries[2]; |
| 210 | |
| 211 | for (Int_t i=0; i<2; ++i) |
| 212 | { |
| 213 | totalNumberOfFO[i] = 0; |
| 214 | chipsHitByPrimaries[i] = 0; |
| 215 | //chipsHitBySecondaries[i] = 0; |
| 216 | } |
| 217 | |
| 218 | Int_t startSPD = 0; //geom->GetStartSPD(); |
| 219 | Int_t lastSPD = 239; //geom->GetLastSPD(); |
| 220 | |
| 221 | //printf("%d %d\n", startSPD, lastSPD); |
| 222 | // for (Int_t l=0; l<240; ++l) { AliITSgeomTGeo::GetModuleId(l, i, j, k); printf("%d --> %d\n", l, i); } |
| 223 | |
| 224 | // loop over modules (ladders) |
| 225 | for (Int_t moduleIndex=startSPD; moduleIndex<lastSPD+1; moduleIndex++) |
| 226 | { |
| a9aed06c |
227 | if (fCentralRegion) |
| 9608df41 |
228 | { |
| 229 | if ((moduleIndex % 4) == 0 || (moduleIndex % 4) == 3) |
| 230 | continue; |
| 231 | } |
| 232 | |
| 233 | Int_t currentLayer = 0; |
| 234 | if (moduleIndex >= 80) |
| 235 | currentLayer = 1; |
| 236 | |
| 237 | treeD->GetEvent(moduleIndex); |
| 238 | |
| 239 | // get number of digits in this module |
| 240 | Int_t ndigitsInModule = digits->GetEntriesFast(); |
| 241 | |
| 242 | // get number of digits in each chip of the module |
| 243 | Int_t ndigitsInChip[5]; |
| 244 | Bool_t hitByPrimary[5]; |
| 245 | for( Int_t iChip=0; iChip<5; iChip++) |
| 246 | { |
| 247 | ndigitsInChip[iChip]=0; |
| 248 | hitByPrimary[iChip] = kFALSE; |
| 249 | } |
| 250 | |
| 251 | // loop over digits in this module |
| 252 | for (Int_t iDig=0; iDig<ndigitsInModule; iDig++) |
| 253 | { |
| 254 | AliITSdigitSPD* dp = (AliITSdigitSPD*) digits->At(iDig); |
| 255 | Int_t column = dp->GetCoord1(); |
| 256 | Int_t isChip = column / 32; |
| 257 | |
| 258 | //printf("Digit %d has column %d which translates to chip %d\n", iDig, column, isChip); |
| 259 | |
| 260 | fChipsFired->Fill(moduleIndex, isChip); |
| 261 | |
| 262 | ndigitsInChip[isChip]++; |
| 263 | |
| 264 | Bool_t debug = kFALSE; |
| 265 | |
| 266 | // find out which particle caused this chip to fire |
| 267 | // if we find at least one primary we consider this chip being fired by a primary |
| 268 | for (Int_t track=0; track<10; ++track) |
| 269 | { |
| 270 | Int_t label = dp->GetTrack(track); |
| 271 | |
| 272 | if (label < 0) |
| 273 | continue; |
| 274 | |
| 275 | if (debug) |
| 276 | printf("track %d contains label %d\n", track, label); |
| 277 | |
| 278 | TParticle* particle = stack->Particle(label); |
| 279 | |
| 280 | if (!particle) |
| 281 | { |
| 282 | AliDebug(AliLog::kError, Form("UNEXPECTED: particle with label %d not found in stack (digit loop).", label)); |
| 283 | continue; |
| 284 | } |
| 285 | |
| 286 | if (debug) |
| 287 | { |
| 288 | particle->Print(); |
| 289 | printf("statuscode = %d, p = %f, m = %d\n", particle->GetStatusCode(), particle->P(), particle->GetFirstMother()); |
| 290 | } |
| 291 | |
| 292 | // TODO delta electrons should be traced back to their mother. this is e.g. solved in AliITSClusterFinderV2::CheckLabels2 |
| 293 | while (particle->P() < 0.02 && particle->GetStatusCode() == 0 && particle->GetFirstMother() >= 0) |
| 294 | { |
| 295 | label = particle->GetFirstMother(); |
| 296 | particle = stack->Particle(label); |
| 297 | |
| 298 | if (!particle) |
| 299 | break; |
| 300 | |
| 301 | if (debug) |
| 302 | { |
| 303 | printf("-->\n"); |
| 304 | printf("statuscode = %d, p = %f, m = %d\n", particle->GetStatusCode(), particle->P(), particle->GetFirstMother()); |
| 305 | particle->Print(); |
| 306 | } |
| 307 | } |
| 308 | |
| 309 | if (!particle) |
| 310 | { |
| 311 | AliDebug(AliLog::kError, Form("UNEXPECTED: particle with label %d not found in stack (digit loop, finding delta electrons).", label)); |
| 312 | continue; |
| 313 | } |
| 314 | |
| 315 | if (label > nPrim) |
| 316 | continue; |
| 317 | |
| 318 | if (AliPWG0Helper::IsPrimaryCharged(particle, nPrim) == kFALSE) |
| 319 | continue; |
| 320 | |
| 321 | if (debug) |
| 322 | printf("This was a primary (or delta-electron of a primary)!\n"); |
| 323 | |
| 324 | hitByPrimary[isChip] = kTRUE; |
| 325 | } |
| 326 | } |
| 327 | |
| 328 | // get number of FOs in the module |
| 329 | for (Int_t ifChip=0; ifChip<5; ifChip++) |
| 330 | if( ndigitsInChip[ifChip] >= 1 ) |
| 331 | { |
| 332 | totalNumberOfFO[currentLayer]++; |
| 333 | if (hitByPrimary[ifChip]) |
| 334 | { |
| 335 | chipsHitByPrimaries[currentLayer]++; |
| 336 | } |
| 337 | //else |
| 338 | // chipsHitBySecondaries[currentLayer]++; |
| 339 | } |
| 340 | } |
| 341 | |
| 342 | //printf("Fired chips: %d %d\n", totalNumberOfFOLayer1, totalNumberOfFOLayer2); |
| 343 | |
| 344 | // now find clusters |
| 345 | Int_t clustersLayer[2]; |
| 346 | clustersLayer[0] = 0; |
| 347 | clustersLayer[1] = 0; |
| 348 | |
| 349 | loader->LoadRecPoints("READ"); |
| 350 | TTree* treeR = loader->TreeR(); |
| 351 | if (!treeR) |
| 352 | { |
| 353 | AliDebug(AliLog::kError, "Could not retrieve TreeR of ITS"); |
| 354 | return kFALSE; |
| 355 | } |
| 356 | |
| 357 | // TODO branches! |
| 358 | //treeR->SetBranchStatus("*", 0); |
| 359 | |
| 360 | TClonesArray* itsClusters = 0; |
| 361 | treeR->SetBranchAddress("ITSRecPoints", &itsClusters); |
| 362 | |
| 363 | Int_t nTreeEntries = treeR->GetEntries(); |
| 364 | for (Int_t iEntry = 0; iEntry < nTreeEntries; ++iEntry) |
| 365 | { |
| 366 | if (!treeR->GetEvent(iEntry)) |
| 367 | continue; |
| 368 | |
| 369 | Int_t nClusters = itsClusters->GetEntriesFast(); |
| 370 | |
| 371 | while(nClusters--) |
| 372 | { |
| 373 | AliITSRecPoint* cluster = (AliITSRecPoint*) itsClusters->UncheckedAt(nClusters); |
| 374 | |
| 375 | if (cluster->GetLayer() == 0) |
| 376 | { |
| 377 | clustersLayer[0]++; |
| 378 | fClusterZL1->Fill(cluster->GetZ()); |
| 379 | } |
| 380 | else if (cluster->GetLayer() == 1) |
| 381 | { |
| 382 | clustersLayer[1]++; |
| 383 | fClusterZL2->Fill(cluster->GetZ()); |
| 384 | } |
| 385 | } |
| 386 | } |
| 387 | |
| 388 | fPrimaryL1->Fill(multiplicity21, totalNumberOfFO[0], chipsHitByPrimaries[0], clustersLayer[0]); |
| 389 | fPrimaryL2->Fill(multiplicity16, totalNumberOfFO[1], chipsHitByPrimaries[1], clustersLayer[1]); |
| 390 | |
| 391 | return kTRUE; |
| 392 | } |
| 393 | |
| 394 | Bool_t AliHighMultiplicitySelector::Notify() |
| 395 | { |
| a9aed06c |
396 | // get next ITS runloader |
| 397 | |
| 9608df41 |
398 | AliRunLoader* runLoader = GetRunLoader(); |
| 399 | |
| 400 | if (runLoader) |
| 401 | { |
| 402 | AliITSLoader* loader = (AliITSLoader* )runLoader->GetLoader( "ITSLoader" ); |
| 403 | if (loader) |
| 404 | { |
| 405 | loader->UnloadDigits(); |
| 406 | loader->UnloadRecPoints(); |
| 407 | } |
| 408 | } |
| 409 | |
| 410 | return AliSelectorRL::Notify(); |
| 411 | } |
| 412 | |
| 413 | void AliHighMultiplicitySelector::SlaveTerminate() |
| 414 | { |
| 415 | // The SlaveTerminate() function is called after all entries or objects |
| 416 | // have been processed. When running with PROOF SlaveTerminate() is called |
| 417 | // on each slave server. |
| 418 | |
| 419 | AliSelectorRL::SlaveTerminate(); |
| 420 | |
| 421 | // Add the histograms to the output on each slave server |
| 422 | if (!fOutput) |
| 423 | { |
| 424 | AliDebug(AliLog::kError, "ERROR: Output list not initialized."); |
| 425 | return; |
| 426 | } |
| 427 | |
| 428 | fOutput->Add(fChipsFired); |
| 429 | fOutput->Add(fPrimaryL1); |
| 430 | fOutput->Add(fPrimaryL2); |
| 431 | fOutput->Add(fClusterZL1); |
| 432 | fOutput->Add(fClusterZL2); |
| 433 | } |
| 434 | |
| 435 | void AliHighMultiplicitySelector::Terminate() |
| 436 | { |
| 437 | // The Terminate() function is the last function to be called during |
| 438 | // a query. It always runs on the client, it can be used to present |
| 439 | // the results graphically or save the results to file. |
| 440 | |
| 441 | AliSelectorRL::Terminate(); |
| 442 | |
| 443 | fChipsFired = dynamic_cast<TH2F*> (fOutput->FindObject("fChipsFired")); |
| 444 | fPrimaryL1 = dynamic_cast<TNtuple*> (fOutput->FindObject("fPrimaryL1")); |
| 445 | fPrimaryL2 = dynamic_cast<TNtuple*> (fOutput->FindObject("fPrimaryL2")); |
| 446 | fClusterZL1 = dynamic_cast<TH1F*> (fOutput->FindObject("fClusterZL1")); |
| 447 | fClusterZL2 = dynamic_cast<TH1F*> (fOutput->FindObject("fClusterZL2")); |
| 448 | |
| 449 | if (!fClusterZL1 || !fClusterZL2 || !fChipsFired || !fPrimaryL1 || !fPrimaryL2) |
| 450 | { |
| 451 | AliError("Histograms not available"); |
| 452 | return; |
| 453 | } |
| 454 | |
| 455 | WriteHistograms(); |
| 456 | } |
| 457 | |
| 458 | void AliHighMultiplicitySelector::WriteHistograms(const char* filename) |
| 459 | { |
| a9aed06c |
460 | // write the histograms to a file |
| 461 | |
| 9608df41 |
462 | TFile* file = TFile::Open(filename, "RECREATE"); |
| 463 | |
| 464 | fChipsFired->Write(); |
| 465 | fPrimaryL1->Write(); |
| 466 | fPrimaryL2->Write(); |
| 467 | fClusterZL1->Write(); |
| 468 | fClusterZL2->Write(); |
| 469 | |
| 470 | file->Close(); |
| 471 | } |
| 472 | |
| 473 | void AliHighMultiplicitySelector::ReadHistograms(const char* filename) |
| 474 | { |
| a9aed06c |
475 | // read the data from a file and fill histograms |
| 476 | |
| 9608df41 |
477 | TFile* file = TFile::Open(filename); |
| 478 | |
| 479 | if (!file) |
| 480 | return; |
| 481 | |
| 482 | fPrimaryL1 = dynamic_cast<TNtuple*> (file->Get("fPrimaryL1")); |
| 483 | fPrimaryL2 = dynamic_cast<TNtuple*> (file->Get("fPrimaryL2")); |
| 484 | fChipsFired = dynamic_cast<TH2F*> (file->Get("fChipsFired")); |
| 485 | fClusterZL1 = dynamic_cast<TH1F*> (file->Get("fClusterZL1")); |
| 486 | fClusterZL2 = dynamic_cast<TH1F*> (file->Get("fClusterZL2")); |
| 487 | |
| 488 | #define MULT 1001, -0.5, 1000.5 |
| 489 | #define BINNING_LAYER1 401, -0.5, 400.5 |
| 490 | #define BINNING_LAYER2 801, -0.5, 800.5 |
| 491 | |
| 492 | fChipsLayer1 = new TH1F("fChipsLayer1", "Layer 1;Fired Chips;Count", BINNING_LAYER1); |
| 493 | fChipsLayer2 = new TH1F("fChipsLayer2", "Layer 2;Fired Chips;Count", BINNING_LAYER2); |
| 494 | |
| 495 | fL1vsL2 = new TH2F("fL1vsL2", ";Fired Chips Layer 1;Fired Chips Layer 2", BINNING_LAYER1, BINNING_LAYER2); |
| 496 | fMvsL1 = new TH2F("fMvsL1", ";true multiplicity;fired chips layer1", MULT, BINNING_LAYER1); |
| 497 | fMvsL2 = new TH2F("fMvsL2", ";true multiplicity;fired chips layer2", MULT, BINNING_LAYER2); |
| 498 | |
| 499 | fClvsL1 = new TH2F("fClvsL1", ";clusters layer1;fired chips layer1", MULT, BINNING_LAYER1); |
| 500 | fClvsL2 = new TH2F("fClvsL2", ";clusters layer2;fired chips layer2", MULT, BINNING_LAYER2); |
| 501 | |
| 502 | for (Int_t i = 0; i < fPrimaryL1->GetEntries(); i++) |
| 503 | { |
| 504 | fPrimaryL1->GetEvent(i); |
| 505 | fPrimaryL2->GetEvent(i); |
| 506 | |
| 507 | Int_t multiplicity21 = (Int_t) fPrimaryL1->GetArgs()[0]; |
| 508 | Int_t multiplicity16 = (Int_t) fPrimaryL2->GetArgs()[0]; |
| 509 | |
| 510 | Int_t totalNumberOfFO[2]; |
| 511 | totalNumberOfFO[0] = (Int_t) fPrimaryL1->GetArgs()[1]; |
| 512 | totalNumberOfFO[1] = (Int_t) fPrimaryL2->GetArgs()[1]; |
| 513 | |
| 514 | Int_t chipsHitByPrimaries[2]; |
| 515 | chipsHitByPrimaries[0] = (Int_t) fPrimaryL1->GetArgs()[2]; |
| 516 | chipsHitByPrimaries[1] = (Int_t) fPrimaryL2->GetArgs()[2]; |
| 517 | |
| 518 | Int_t clustersLayer[2]; |
| 519 | clustersLayer[0] = (Int_t) fPrimaryL1->GetArgs()[3]; |
| 520 | clustersLayer[1] = (Int_t) fPrimaryL2->GetArgs()[3]; |
| 521 | |
| 522 | fChipsLayer1->Fill(totalNumberOfFO[0]); |
| 523 | fChipsLayer2->Fill(totalNumberOfFO[1]); |
| 524 | |
| 525 | fL1vsL2->Fill(totalNumberOfFO[0], totalNumberOfFO[1]); |
| 526 | |
| 527 | fMvsL1->Fill(multiplicity21, totalNumberOfFO[0]); |
| 528 | fMvsL2->Fill(multiplicity16, totalNumberOfFO[1]); |
| 529 | |
| 530 | fClvsL1->Fill(clustersLayer[0], totalNumberOfFO[0]); |
| 531 | fClvsL2->Fill(clustersLayer[1], totalNumberOfFO[1]); |
| 532 | } |
| 533 | } |
| 534 | |
| b3b260d1 |
535 | TH1* AliHighMultiplicitySelector::GetTriggerEfficiency(TH2* multVsLayer, Int_t cut, Int_t upperCut) |
| 9608df41 |
536 | { |
| f6093269 |
537 | // |
| 538 | // returns the trigger efficiency as function of multiplicity with a given cut |
| 539 | // |
| 9608df41 |
540 | |
| 541 | //cut and multiply with x-section |
| f6093269 |
542 | TH1* allEvents = multVsLayer->ProjectionX("fMvsL_x_total", 1, 1001); |
| 9608df41 |
543 | //allEvents->Sumw2(); |
| 544 | |
| 545 | //cut and multiply with x-section |
| b3b260d1 |
546 | TH1* proj = multVsLayer->ProjectionX(Form("%s_x", multVsLayer->GetName()), cut, upperCut); |
| 9608df41 |
547 | //proj->Sumw2(); |
| 548 | |
| f6093269 |
549 | //new TCanvas; allEvents->DrawCopy(); gPad->SetLogy(); |
| 550 | //new TCanvas; proj->DrawCopy(); gPad->SetLogy(); |
| 9608df41 |
551 | |
| 552 | // make probability distribution out of it |
| 553 | // TODO binomial errors do not work??? weird... |
| 554 | proj->Divide(proj, allEvents, 1, 1, "B"); |
| 555 | |
| f6093269 |
556 | return proj; |
| 557 | } |
| 558 | |
| 559 | TH1* AliHighMultiplicitySelector::GetXSectionCut(TH1* xSection, TH2* multVsLayer, Int_t cut) |
| 560 | { |
| 561 | // returns the rel. cross section of the true spectrum that is measured when a cut at <cut> is performed |
| 562 | |
| 563 | TH1* proj = GetTriggerEfficiency(multVsLayer, cut); |
| 564 | |
| 565 | //new TCanvas; proj->DrawCopy(); gPad->SetLogy(); |
| 9608df41 |
566 | |
| 567 | for (Int_t i=1; i<=proj->GetNbinsX(); i++) |
| 568 | { |
| 569 | if (i <= xSection->GetNbinsX()) |
| 570 | { |
| 571 | Double_t value = proj->GetBinContent(i) * xSection->GetBinContent(i); |
| 572 | Double_t error = 0; |
| 573 | |
| 574 | if (value != 0) |
| 575 | error = value * (proj->GetBinError(i) / proj->GetBinContent(i) + xSection->GetBinError(i) / xSection->GetBinContent(i)); |
| 576 | |
| 577 | proj->SetBinContent(i, value); |
| 578 | proj->SetBinError(i, error); |
| 579 | } |
| 580 | else |
| 581 | { |
| 582 | proj->SetBinContent(i, 0); |
| 583 | proj->SetBinError(i, 0); |
| 584 | } |
| 585 | } |
| 586 | |
| f6093269 |
587 | //new TCanvas; proj->DrawCopy(); gPad->SetLogy(); |
| 9608df41 |
588 | |
| 589 | return proj; |
| 590 | } |
| 591 | |
| f6093269 |
592 | void AliHighMultiplicitySelector::MakeGraphs2(const char* title, TH1* xSection, TH2* fMvsL) |
| 9608df41 |
593 | { |
| a9aed06c |
594 | // creates graphs |
| 595 | |
| f6093269 |
596 | TGraph* effGraph = new TGraph; |
| 597 | effGraph->SetTitle(Form("%s;Cut on fired chips;mult. where eff. >50%%", title)); |
| 598 | TGraph* ratioGraph = new TGraph; |
| 599 | ratioGraph->SetTitle(Form("%s;Cut on fired chips;x-section_(>=eff. limit) / x-section_(total)", title)); |
| 600 | TGraph* totalGraph = new TGraph; |
| 601 | totalGraph->SetTitle(Form("%s;Cut on fired chips;rel x-section_(>=eff. limit)", title)); |
| 602 | |
| 603 | for (Int_t cut = 0; cut <= 300; cut+=50) |
| 604 | { |
| 605 | TH1* proj = (TH1*) GetTriggerEfficiency(fMvsL, cut)->Clone("clone"); |
| 606 | |
| 607 | //proj->Rebin(3); |
| 608 | //proj->Scale(1.0 / 3); |
| 609 | |
| 610 | new TCanvas; proj->DrawCopy(); |
| 9608df41 |
611 | |
| f6093269 |
612 | Int_t limitBin = proj->GetNbinsX()+1; |
| 613 | while (limitBin > 1 && proj->GetBinContent(limitBin-1) > 0.5) |
| 614 | limitBin--; |
| 615 | |
| 616 | Float_t limit = proj->GetXaxis()->GetBinCenter(limitBin); |
| 617 | |
| 618 | effGraph->SetPoint(effGraph->GetN(), cut, limit); |
| 619 | |
| 620 | proj = GetXSectionCut(xSection, fMvsL, cut); |
| 621 | |
| 622 | Double_t ratio = 0; |
| 623 | Double_t total = 0; |
| 624 | if (proj->Integral(1, 1001) > 0) |
| 625 | { |
| 626 | ratio = proj->Integral(proj->FindBin(limit), 1001) / proj->Integral(1, 1001); |
| 627 | total = proj->Integral(proj->FindBin(limit), 1001); |
| 628 | } |
| 629 | |
| 630 | ratioGraph->SetPoint(ratioGraph->GetN(), cut, ratio); |
| 631 | totalGraph->SetPoint(totalGraph->GetN(), cut, total); |
| 632 | |
| 633 | Printf("Cut at %d --> trigger eff. is > 0.5 for mult. >= %.2f. That is the case for %f of the triggered, %e of all events", cut, limit, ratio, total); |
| 634 | } |
| 635 | |
| 636 | TCanvas* canvas = new TCanvas(Form("%s_Efficiency", title), Form("%s_Efficiency", title), 1200, 800); |
| 637 | canvas->Divide(2, 2); |
| 638 | |
| 639 | canvas->cd(1); |
| 640 | effGraph->Draw("A*"); |
| 641 | |
| 642 | for (Int_t i=8; i<=10; ++i) |
| 643 | { |
| 644 | TLine* line = new TLine(0, xSection->GetMean() * i, 300, xSection->GetMean() * i); |
| 645 | line->Draw(); |
| 646 | } |
| 647 | |
| 648 | canvas->cd(2); ratioGraph->Draw("A*"); |
| 649 | canvas->cd(3); gPad->SetLogy(); totalGraph->Draw("A*"); |
| 650 | |
| 651 | canvas->SaveAs(Form("%s.gif", canvas->GetName())); |
| 652 | } |
| 653 | |
| 654 | void AliHighMultiplicitySelector::MakeGraphs(const char* title, TH1* xSection, TH2* fMvsL, Int_t limit) |
| 655 | { |
| 9608df41 |
656 | // relative x-section, once we have a collision |
| a9aed06c |
657 | |
| 9608df41 |
658 | xSection->Scale(1.0 / xSection->Integral()); |
| 659 | |
| 660 | TGraph* ratioGraph = new TGraph; |
| 661 | ratioGraph->SetTitle(Form("%s;Cut on fired chips;x-section_(>=%d) / x-section_(total)", title, limit)); |
| 662 | TGraph* totalGraph = new TGraph; |
| 663 | totalGraph->SetTitle(Form("%s;Cut on fired chips;rel x-section_(>=%d)", title, limit)); |
| 664 | |
| 665 | Double_t max = 0; |
| 666 | Int_t bestCut = -1; |
| 667 | Double_t bestRatio = -1; |
| 668 | Double_t bestTotal = -1; |
| 669 | Int_t fullCut = -1; |
| 670 | Double_t fullRatio = -1; |
| 671 | Double_t fullTotal = -1; |
| 672 | |
| 673 | fMvsL->Sumw2(); |
| 674 | |
| 675 | for (Int_t cut = 50; cut <= 300; cut+=2) |
| 676 | { |
| 677 | TH1* proj = GetXSectionCut(xSection, fMvsL, cut); |
| 678 | |
| 679 | Double_t ratio = 0; |
| 680 | Double_t total = 0; |
| 681 | if (proj->Integral(1, 1000) > 0) |
| 682 | { |
| 683 | ratio = proj->Integral(limit, 1000) / proj->Integral(1, 1000); |
| 684 | total = proj->Integral(limit, 1000); |
| 685 | } |
| 686 | |
| 687 | max = TMath::Max(max, total); |
| 688 | |
| 689 | //printf("Cut at %d: rel. x-section_(>=%d) = %e; x-section_(>=%d) / x-section_(total) = %f\n", cut, limit, total, limit, ratio); |
| 690 | |
| 691 | if (total < max * 0.9 && bestCut == -1) |
| 692 | { |
| 693 | bestCut = cut; |
| 694 | bestRatio = ratio; |
| 695 | bestTotal = total; |
| 696 | } |
| 697 | |
| 698 | if (ratio == 1 && fullCut == -1) |
| 699 | { |
| 700 | fullCut = cut; |
| 701 | fullRatio = ratio; |
| 702 | fullTotal = total; |
| 703 | } |
| 704 | |
| 705 | ratioGraph->SetPoint(ratioGraph->GetN(), cut, ratio); |
| 706 | totalGraph->SetPoint(totalGraph->GetN(), cut, total); |
| 707 | } |
| 708 | |
| 709 | if (bestCut != -1) |
| 710 | printf("Best cut at %d: rel. x-section_(>=%d) = %e %%; x-section_(>=%d) / x-section_(total) = %f %%\n", bestCut, limit, bestTotal, limit, bestRatio); |
| 711 | if (fullCut != -1) |
| 712 | printf("100%% cut at %d: rel. x-section_(>=%d) = %e %%; x-section_(>=%d) / x-section_(total) = %f %%\n", fullCut, limit, fullTotal, limit, fullRatio); |
| 713 | |
| 714 | TCanvas* canvas = new TCanvas(Form("%s_RatioXSection_%d", title, limit), Form("%s_RatioXSection_%d", title, limit), 600, 400); |
| 715 | ratioGraph->Draw("A*"); |
| 716 | canvas->SaveAs(Form("%s.gif", canvas->GetName())); |
| 717 | |
| 718 | canvas = new TCanvas(Form("%s_TotalXSection_%d", title, limit), Form("%s_TotalXSection_%d", title, limit), 600, 400); |
| 719 | totalGraph->Draw("A*"); |
| 720 | canvas->SaveAs(Form("%s.gif", canvas->GetName())); |
| 721 | } |
| 722 | |
| 723 | void AliHighMultiplicitySelector::JPRPlots() |
| 724 | { |
| a9aed06c |
725 | // more plots |
| 726 | |
| 9608df41 |
727 | /* |
| 728 | |
| 729 | gSystem->Load("libPWG0base"); |
| 730 | .L AliHighMultiplicitySelector.cxx+ |
| 731 | x = new AliHighMultiplicitySelector(); |
| 732 | x->ReadHistograms("highmult_hijing100k.root"); |
| 733 | x->JPRPlots(); |
| 734 | |
| 735 | */ |
| 736 | |
| 737 | // get x-sections |
| 738 | TFile* file = TFile::Open("crosssectionEx.root"); |
| 739 | if (!file) |
| 740 | return; |
| 741 | |
| 742 | TH1* xSections[2]; |
| 743 | xSections[0] = dynamic_cast<TH1*> (gFile->Get("xSection2Ex")); |
| 744 | xSections[1] = dynamic_cast<TH1*> (gFile->Get("xSection15Ex")); |
| 745 | |
| 746 | for (Int_t i=0; i<2; ++i) |
| 747 | { |
| 748 | if (!xSections[i]) |
| 749 | continue; |
| 750 | |
| 751 | TH1* xSection = xSections[i]; |
| 752 | TH2* fMvsL = (i == 0) ? fMvsL1: fMvsL2; |
| 753 | //Int_t cut = (i == 0) ? 164 : 150; // 8 times the mean |
| 754 | //Int_t cut = (i == 0) ? 178 : 166; // 9 times the mean |
| 755 | Int_t cut = (i == 0) ? 190 : 182; // 10 times the mean |
| 756 | |
| f6093269 |
757 | // limit is N times the mean |
| 758 | Int_t limit = (Int_t) (xSection->GetMean() * 10); |
| 759 | |
| 760 | // 10^28 lum --> 1.2 kHz |
| 761 | // 10^31 lum --> 1200 kHz |
| 762 | Float_t rate = 1200e3; |
| 763 | |
| 764 | // time in s |
| 765 | Float_t lengthRun = 1e6; |
| 766 | |
| 9608df41 |
767 | xSection->SetStats(kFALSE); |
| f6093269 |
768 | xSection->SetTitle(""); //(i == 0) ? "SPD Layer 1" : "SPD Layer 2"); |
| 9608df41 |
769 | xSection->GetXaxis()->SetTitle(Form("true multiplicity in |#eta| < %.1f", (i == 0) ? 2.0 : 1.5)); |
| 770 | xSection->GetXaxis()->SetRangeUser(0, (i == 0) ? 400 : 350); |
| f6093269 |
771 | //xSection->GetYaxis()->SetTitle("relative cross section"); |
| 9608df41 |
772 | xSection->GetYaxis()->SetTitleOffset(1.2); |
| 773 | |
| 9608df41 |
774 | // relative x-section, once we have a collision |
| 775 | xSection->Scale(1.0 / xSection->Integral()); |
| 776 | |
| 777 | TH1* proj = GetXSectionCut(xSection, fMvsL, cut); |
| 778 | |
| 779 | Double_t ratio = 0; |
| 780 | Double_t total = 0; |
| 781 | if (proj->Integral(1, 1000) > 0) |
| 782 | { |
| 783 | ratio = proj->Integral(limit, 1000) / proj->Integral(1, 1000); |
| 784 | total = proj->Integral(limit, 1000); |
| 785 | } |
| 786 | |
| 787 | printf("Cut at %d: rel. x-section_(>=%d) = %e; x-section_(>=%d) / x-section_(total) = %f\n", cut, limit, total, limit, ratio); |
| 788 | |
| 789 | TCanvas* canvas = new TCanvas(Form("HMPlots_%d", i), Form("HMPlots_%d", i), 800, 600); |
| 790 | canvas->SetLogy(); |
| 791 | xSection->DrawCopy(); |
| 792 | proj->SetLineColor(2); |
| 793 | proj->SetStats(kFALSE); |
| 794 | proj->DrawCopy("SAME"); |
| 795 | |
| 796 | TLegend* legend = new TLegend(0.15, 0.15, 0.45, 0.3); |
| 797 | legend->SetFillColor(0); |
| 798 | legend->AddEntry(xSection, "no trigger"); |
| 799 | legend->AddEntry(proj, Form("FO trigger > %d chips", cut)); |
| 800 | legend->Draw(); |
| 801 | |
| 802 | TLine* line = new TLine(limit, xSection->GetMinimum() * 0.5, limit, xSection->GetMaximum() * 2); |
| 803 | line->SetLineWidth(2); |
| 804 | line->Draw(); |
| 805 | |
| 806 | canvas->SaveAs(Form("%s.gif", canvas->GetName())); |
| 807 | |
| 808 | TCanvas* canvas2 = new TCanvas(Form("HMPlots_%d_Random", i), Form("HMPlots_%d_Random", i), 800, 600); |
| f6093269 |
809 | //canvas2->SetTopMargin(0.05); |
| 810 | //canvas2->SetRightMargin(0.05); |
| 9608df41 |
811 | canvas2->SetLogy(); |
| f6093269 |
812 | xSection->DrawCopy("HIST"); |
| 9608df41 |
813 | |
| f6093269 |
814 | TLegend* legend2 = new TLegend(0.15, 0.15, 0.6, 0.3); |
| 9608df41 |
815 | legend2->SetFillColor(0); |
| 816 | legend2->AddEntry(xSection, "no trigger"); |
| 817 | |
| 818 | TH1* proj2 = (TH1*) proj->Clone("random"); |
| 819 | proj2->Reset(); |
| f6093269 |
820 | // MB lengthRun s 100 Hz |
| 821 | Int_t nTrigger = (Int_t) (100 * lengthRun * proj->Integral(1, 1000)); |
| 9608df41 |
822 | proj2->FillRandom(proj, nTrigger); |
| 823 | |
| 824 | TH1* proj3 = (TH1*) proj2->Clone("random_clone"); |
| 825 | proj3->Divide(proj); |
| 826 | proj3->Fit("pol0", "0", ""); |
| 827 | proj2->Scale(1.0 / proj3->GetFunction("pol0")->GetParameter(0)); |
| 828 | |
| f6093269 |
829 | /* |
| 9608df41 |
830 | proj2->DrawCopy("SAME"); |
| 831 | legend2->AddEntry(proj2, Form("%d evts, FO > %d chips (%d evts)", nTrigger, cut, (Int_t) (nTrigger * ratio))); |
| f6093269 |
832 | */ |
| 9608df41 |
833 | |
| 834 | proj2 = (TH1*) proj->Clone("random2"); |
| 835 | proj2->Reset(); |
| f6093269 |
836 | // 10^31 lum --> 1200 kHz; lengthRun s |
| 837 | nTrigger = (Int_t) (rate * proj->Integral(1, 1000) * lengthRun); |
| 9608df41 |
838 | proj2->FillRandom(proj, nTrigger); |
| 839 | |
| 840 | proj3 = (TH1*) proj2->Clone("random_clone2"); |
| 841 | proj3->Divide(proj); |
| 842 | proj3->Fit("pol0", "0", ""); |
| 843 | proj2->Scale(1.0 / proj3->GetFunction("pol0")->GetParameter(0)); |
| 844 | |
| 845 | proj2->SetLineColor(4); |
| f6093269 |
846 | proj2->SetMarkerStyle(7); |
| 847 | proj2->SetMarkerColor(4); |
| 848 | proj2->DrawCopy("SAME P"); |
| 849 | //legend2->AddEntry(proj2, Form("%d evts, FO > %d chips (%d evts)", nTrigger, cut, (Int_t) (nTrigger * ratio))); |
| 850 | legend2->AddEntry(proj2, Form("FO trigger > %d chips", cut)); |
| 9608df41 |
851 | |
| 852 | legend2->Draw(); |
| 853 | line->Draw(); |
| 854 | |
| 855 | canvas2->SaveAs(Form("%s.gif", canvas2->GetName())); |
| f6093269 |
856 | canvas2->SaveAs(Form("%s.eps", canvas2->GetName())); |
| 9608df41 |
857 | } |
| 858 | } |
| 859 | |
| d1594f8a |
860 | void AliHighMultiplicitySelector::Ntrigger(Bool_t relative) |
| f91bc12d |
861 | { |
| 862 | // |
| 863 | // produces a spectrum created with N triggers |
| 864 | // number of triggers and thresholds for the moment fixed |
| 865 | // |
| 866 | |
| 867 | /* |
| 868 | |
| dd367a14 |
869 | gSystem->Load("libANALYSIS"); |
| f91bc12d |
870 | gSystem->Load("libPWG0base"); |
| 871 | .L AliHighMultiplicitySelector.cxx+g |
| 872 | x = new AliHighMultiplicitySelector(); |
| 873 | x->ReadHistograms("highmult_hijing100k.root"); |
| 874 | x->Ntrigger(); |
| 875 | |
| d1594f8a |
876 | gSystem->Load("libPWG0base"); |
| 877 | .L AliHighMultiplicitySelector.cxx+g |
| 878 | x = new AliHighMultiplicitySelector(); |
| 879 | x->ReadHistograms("highmult_hijing100k.root"); |
| 880 | x->Ntrigger(kFALSE); |
| 881 | |
| f91bc12d |
882 | */ |
| 883 | |
| 884 | // get x-sections |
| 885 | TFile* file = TFile::Open("crosssectionEx.root"); |
| 886 | if (!file) |
| 887 | return; |
| 888 | |
| 889 | TH1* xSections[2]; |
| 890 | xSections[0] = dynamic_cast<TH1*> (gFile->Get("xSection2Ex")); |
| 891 | xSections[1] = dynamic_cast<TH1*> (gFile->Get("xSection15Ex")); |
| 892 | |
| 51f6de65 |
893 | // 10^28 lum --> 1.4 kHz |
| 894 | // 10^31 lum --> 1400 kHz |
| 895 | //Float_t rate = 1400e3; |
| 896 | Float_t rate = 1.4e3; |
| f91bc12d |
897 | |
| 898 | // time in s |
| 51f6de65 |
899 | Float_t lengthRun = 1e5; |
| f91bc12d |
900 | |
| 901 | Int_t colors[] = { 2, 3, 4, 6, 7, 8 }; |
| 902 | Int_t markers[] = { 7, 2, 4, 5, 6, 27 }; |
| 903 | |
| 904 | // put to 2 for second layer |
| 905 | for (Int_t i=0; i<1; ++i) |
| 906 | { |
| 907 | if (!xSections[i]) |
| 908 | continue; |
| 909 | |
| 910 | TH1* xSection = xSections[i]; |
| 911 | TH2* fMvsL = (i == 0) ? fMvsL1: fMvsL2; |
| 912 | |
| a9aed06c |
913 | //Int_t nCuts = 6; |
| 914 | //Int_t cuts[] = { 0, 164, 178, 190, 204, 216 }; |
| f91bc12d |
915 | //Int_t nCuts = 4; |
| 916 | //Int_t cuts[] = { 0, 164, 190, 216 }; |
| d1594f8a |
917 | |
| 918 | //Int_t nCuts = 4; |
| 919 | //Int_t cuts[] = { 0, 114, 145, 165 }; |
| 920 | //Float_t ratePerTrigger[] = { 60, 13.3, 13.3, 13.3 }; |
| 921 | |
| 922 | Int_t nCuts = 3; |
| 51f6de65 |
923 | Int_t cuts[] = { 0, 114, 148 }; |
| 924 | |
| 925 | //Int_t nCuts = 3; |
| 926 | //Int_t cuts[] = { 0, 126, 162 }; |
| 927 | //Float_t ratePerTrigger[] = { 60, 20.0, 20.0 }; |
| a9aed06c |
928 | |
| f91bc12d |
929 | // desired trigger rate in Hz |
| 51f6de65 |
930 | Float_t ratePerTrigger[] = { 100, 1, 1, 1, 1, 1 }; |
| f91bc12d |
931 | |
| 932 | xSection->SetStats(kFALSE); |
| 933 | xSection->SetTitle(""); //(i == 0) ? "SPD Layer 1" : "SPD Layer 2"); |
| 934 | xSection->GetXaxis()->SetTitle(Form("true multiplicity in |#eta| < %.1f", (i == 0) ? 2.0 : 1.5)); |
| 935 | xSection->GetXaxis()->SetRangeUser(0, (i == 0) ? 450 : 350); |
| 936 | //xSection->GetYaxis()->SetTitle("relative cross section"); |
| 937 | xSection->GetYaxis()->SetTitleOffset(1.2); |
| 938 | |
| 939 | // relative x-section, once we have a collision |
| 940 | xSection->Scale(1.0 / xSection->Integral()); |
| 941 | |
| 942 | TCanvas* canvas2 = new TCanvas(Form("HMPlots2_%d_Random", i), Form("HMPlots2_%d_Random", i), 800, 600); |
| 943 | canvas2->SetTopMargin(0.05); |
| 944 | canvas2->SetRightMargin(0.05); |
| 945 | canvas2->SetLogy(); |
| d1594f8a |
946 | |
| 947 | if (relative) |
| 948 | xSection->DrawCopy("HIST"); |
| f91bc12d |
949 | |
| 950 | TLegend* legend2 = new TLegend(0.15, 0.15, 0.6, 0.4); |
| 951 | legend2->SetFillColor(0); |
| 952 | legend2->AddEntry(xSection, "cross-section"); |
| 953 | |
| 954 | for (Int_t currentCut = 0; currentCut<nCuts; ++currentCut) |
| 955 | { |
| 956 | Int_t cut = cuts[currentCut]; |
| 957 | |
| d1594f8a |
958 | TH1* triggerEff = (TH1*) GetTriggerEfficiency(fMvsL, cut)->Clone("triggerEff"); |
| 959 | |
| f91bc12d |
960 | TH1* proj = GetXSectionCut(xSection, fMvsL, cut); |
| 961 | |
| d1594f8a |
962 | Float_t triggerLimit = 0; |
| 963 | for (Int_t bin = 1; bin <= triggerEff->GetNbinsX(); bin++) |
| 964 | if (triggerEff->GetBinContent(bin) < 0.5) |
| 965 | triggerLimit = triggerEff->GetXaxis()->GetBinCenter(bin); |
| 966 | |
| 967 | Printf("Efficiency limit (50%%) is at multiplicity %f", triggerLimit); |
| 968 | |
| f91bc12d |
969 | Double_t total = 0; |
| 970 | if (proj->Integral(1, 1000) > 0) |
| 971 | total = proj->Integral(1, 1000); |
| 972 | |
| 973 | printf("Cut at %d: rel. x-section = %e\n", cut, total); |
| 974 | |
| 975 | TH1* proj2 = (TH1*) proj->Clone("random2"); |
| 976 | proj2->Reset(); |
| 977 | |
| 978 | // calculate downscale factor |
| 979 | Float_t normalRate = rate * proj->Integral(1, 1000); |
| 980 | Float_t downScale = normalRate / ratePerTrigger[currentCut]; |
| 981 | if (downScale < 1) |
| 982 | downScale = 1; |
| 983 | Long64_t nTrigger = (Long64_t) (normalRate / downScale * lengthRun); |
| dd367a14 |
984 | nTrigger = TMath::Nint(((Float_t) nTrigger) / 1000) * 1000; |
| f91bc12d |
985 | |
| 986 | Printf("Normal rate is %f, downscale: %f, Simulating %lld triggers", normalRate, downScale, nTrigger); |
| 51f6de65 |
987 | if (nTrigger == 0) |
| 988 | continue; |
| 989 | |
| f91bc12d |
990 | proj2->FillRandom(proj, nTrigger); |
| 991 | |
| 992 | Int_t removed = 0; |
| 993 | for (Int_t bin=1; bin<proj2->GetNbinsX(); ++bin) |
| 994 | if (proj2->GetBinContent(bin) < 5) |
| 995 | { |
| 996 | removed += (Int_t) proj2->GetBinContent(bin); |
| 997 | proj2->SetBinContent(bin, 0); |
| 998 | } |
| 999 | |
| 1000 | Printf("Removed %d events", removed); |
| 1001 | |
| d1594f8a |
1002 | if (relative) |
| 1003 | proj2->Scale(1.0 / nTrigger * proj->Integral(1, 1000)); |
| f91bc12d |
1004 | |
| 1005 | proj2->SetLineColor(colors[currentCut]); |
| 1006 | proj2->SetMarkerStyle(markers[currentCut]); |
| 1007 | proj2->SetMarkerColor(colors[currentCut]); |
| d1594f8a |
1008 | |
| 1009 | if (relative || currentCut > 0) { |
| 1010 | proj2->DrawCopy("SAME P"); |
| 1011 | } else |
| 1012 | proj2->DrawCopy(" P"); |
| 1013 | |
| 745d6088 |
1014 | TString eventStr; |
| 1015 | if (nTrigger > 1e6) |
| 1016 | { |
| 1017 | eventStr.Form("%lld M", nTrigger / 1000 / 1000); |
| 1018 | } |
| 1019 | else if (nTrigger > 1e3) |
| 1020 | { |
| 1021 | eventStr.Form("%lld K", nTrigger / 1000); |
| 1022 | } |
| 1023 | else |
| 1024 | eventStr.Form("%lld", nTrigger); |
| 1025 | |
| 1026 | TString triggerStr; |
| 1027 | if (cut == 0) |
| 1028 | { |
| 1029 | triggerStr = "minimum bias"; |
| 1030 | } |
| 1031 | else |
| 1032 | triggerStr.Form("FO > %d chips", cut); |
| d1594f8a |
1033 | |
| 745d6088 |
1034 | legend2->AddEntry(proj2, Form("%s evts, %s", eventStr.Data(), triggerStr.Data())); |
| 1035 | |
| 1036 | if (triggerLimit > 1) |
| 1037 | { |
| 1038 | TLine* line = new TLine(triggerLimit, proj2->GetMinimum(), triggerLimit, proj2->GetMaximum()); |
| 1039 | line->SetLineColor(colors[currentCut]); |
| 1040 | line->Draw(); |
| 1041 | } |
| f91bc12d |
1042 | } |
| 1043 | |
| 1044 | legend2->Draw(); |
| 1045 | |
| 1046 | canvas2->SaveAs(Form("%s.gif", canvas2->GetName())); |
| 1047 | canvas2->SaveAs(Form("%s.eps", canvas2->GetName())); |
| 1048 | } |
| 1049 | } |
| 1050 | |
| d1594f8a |
1051 | void AliHighMultiplicitySelector::Contamination() |
| 1052 | { |
| 1053 | // |
| d1594f8a |
1054 | // |
| 1055 | |
| 1056 | /* |
| 1057 | |
| 1058 | gSystem->Load("libANALYSIS"); |
| 1059 | gSystem->Load("libPWG0base"); |
| 1060 | .L AliHighMultiplicitySelector.cxx+g |
| 1061 | x = new AliHighMultiplicitySelector(); |
| 1062 | x->ReadHistograms("highmult_hijing100k.root"); |
| 1063 | x->Contamination(); |
| 1064 | |
| 1065 | */ |
| 1066 | |
| 1067 | // get x-sections |
| 1068 | TFile* file = TFile::Open("crosssectionEx.root"); |
| 1069 | if (!file) |
| 1070 | return; |
| 1071 | |
| 1072 | TH1* xSections[2]; |
| 1073 | xSections[0] = dynamic_cast<TH1*> (gFile->Get("xSection2Ex")); |
| 1074 | xSections[1] = dynamic_cast<TH1*> (gFile->Get("xSection15Ex")); |
| 1075 | |
| 1076 | // rate = L * sigma |
| 1077 | // sigma ~ 80 mb (Pythia 14 TeV) |
| 1078 | // 10^28 lum --> 8e2 Hz |
| 1079 | // 10^31 lum --> 8e5 Hz |
| 1080 | Double_t rates[] = { 8e2, 8e3, 8e4, 8e5 }; |
| 1081 | |
| 1082 | Int_t nCuts = 4; |
| 1083 | Int_t cuts[] = { 104, 134, 154, 170 }; |
| 1084 | |
| 1085 | // put to 2 for second layer |
| 1086 | for (Int_t i=0; i<1; ++i) |
| 1087 | { |
| 1088 | if (!xSections[i]) |
| 1089 | continue; |
| 1090 | |
| 1091 | // relative x-section, once we have a collision |
| 1092 | xSections[i]->Scale(1.0 / xSections[i]->Integral()); |
| 1093 | |
| 1094 | Int_t max = xSections[i]->GetNbinsX(); |
| 1095 | max = 500; |
| 1096 | |
| 1097 | Float_t* xSection = new Float_t[max]; |
| 1098 | for (Int_t mult = 0; mult < max; mult++) |
| 1099 | xSection[mult] = xSections[i]->GetBinContent(mult+1); |
| 1100 | |
| 1101 | TH2* fMvsL = (i == 0) ? fMvsL1: fMvsL2; |
| 1102 | |
| 1103 | TGraph* graph = new TGraph; |
| 1104 | |
| 1105 | for (Int_t currentCut = 0; currentCut<nCuts; ++currentCut) |
| 1106 | { |
| 1107 | Int_t cut = cuts[currentCut]; |
| 1108 | Double_t rate = rates[currentCut]; |
| 1109 | //Double_t rate = rates[3]; |
| 1110 | |
| 1111 | // coll. in 100 ns window |
| 69b09e3b |
1112 | Double_t windowSize = 100e-9; |
| 1113 | //Double_t windowSize = 25e-9; |
| d1594f8a |
1114 | Double_t collPerWindow = windowSize * rate; |
| 1115 | Printf("coll/window = %f", collPerWindow); |
| 1116 | Double_t windowsPerSecond = 1.0 / windowSize; |
| 1117 | |
| 1118 | TH1* triggerEffHist = (TH1*) GetTriggerEfficiency(fMvsL, cut)->Clone("triggerEff"); |
| 1119 | Float_t* triggerEff = new Float_t[max]; |
| 1120 | for (Int_t mult = 0; mult < max; mult++) |
| 1121 | triggerEff[mult] = triggerEffHist->GetBinContent(mult+1); |
| 1122 | |
| 1123 | Double_t triggerRate = 0; |
| 1124 | for (Int_t mult = 0; mult < max; mult++) |
| 1125 | triggerRate += xSection[mult] * triggerEff[mult]; |
| 1126 | |
| 1127 | triggerRate *= TMath::Poisson(1, collPerWindow) * windowsPerSecond; |
| 1128 | |
| 1129 | Printf("Rate for 1 collision is %f Hz", triggerRate); |
| 1130 | |
| 1131 | Double_t triggerRate2 = 0; |
| 1132 | for (Int_t mult = 0; mult < max; mult++) |
| 1133 | for (Int_t mult2 = mult; mult2 < max; mult2++) |
| 1134 | if (mult+mult2 < max) |
| 1135 | triggerRate2 += ((mult2 > mult) ? 2. : 1.) * xSection[mult] * xSection[mult2] * triggerEff[mult+mult2]; |
| 1136 | |
| 1137 | triggerRate2 *= TMath::Poisson(2, collPerWindow) * windowsPerSecond; |
| d1594f8a |
1138 | |
| 1139 | Printf("Rate for 2 collisions is %f Hz --> %.1f%%", triggerRate2, triggerRate2 / triggerRate * 100); |
| 1140 | |
| 1141 | Double_t triggerRate3 = 0; |
| 144ff489 |
1142 | |
| d1594f8a |
1143 | for (Int_t mult = 0; mult < max; mult++) |
| 1144 | for (Int_t mult2 = mult; mult2 < max-mult; mult2++) |
| 1145 | for (Int_t mult3 = 0; mult3 < max-mult-mult2; mult3++) |
| 1146 | //if (mult+mult2+mult3 < max) |
| 1147 | triggerRate3 += ((mult2 > mult) ? 2. : 1.) * xSection[mult] * xSection[mult2] * xSection[mult3] * triggerEff[mult+mult2+mult3]; |
| 1148 | |
| 1149 | triggerRate3 *= TMath::Poisson(3, collPerWindow) * windowsPerSecond; |
| 1150 | //triggerRate3 *= collPerWindow * collPerWindow * rate; |
| 1151 | |
| 1152 | Printf("Rate for 3 collisions is %f Hz --> %.1f%%", triggerRate3, triggerRate3 / triggerRate * 100); |
| 1153 | |
| 1154 | Float_t totalContamination = (triggerRate2 + triggerRate3) / (triggerRate + triggerRate2 + triggerRate3); |
| 1155 | |
| 1156 | Printf("Total contamination is %.1f%%", totalContamination * 100); |
| 1157 | |
| 1158 | graph->SetPoint(graph->GetN(), cut, totalContamination); |
| 1159 | |
| 1160 | continue; |
| 1161 | |
| 1162 | Double_t triggerRate4 = 0; |
| 1163 | for (Int_t mult = 0; mult < max; mult++) |
| 1164 | for (Int_t mult2 = mult; mult2 < max-mult; mult2++) |
| 1165 | for (Int_t mult3 = 0; mult3 < max-mult-mult2; mult3++) |
| 1166 | for (Int_t mult4 = 0; mult4 < max-mult-mult2-mult3; mult4++) |
| 1167 | //if (mult+mult2+mult3+mult4 < max) |
| 1168 | triggerRate4 += ((mult2 > mult) ? 2. : 1.) * xSection[mult] * xSection[mult2] * xSection[mult3] * xSection[mult4] * triggerEff[mult+mult2+mult3+mult4]; |
| 1169 | |
| 1170 | //triggerRate4 *= collPerWindow * collPerWindow * collPerWindow * rate; |
| 1171 | triggerRate4 *= TMath::Poisson(4, collPerWindow) * windowsPerSecond; |
| 1172 | |
| 1173 | Printf("Rate for 4 collisions is %f Hz --> %.1f%%", triggerRate4, triggerRate4 / triggerRate * 100); |
| 1174 | |
| 1175 | // general code for n collisions follows, however much slower... |
| 1176 | /* |
| 1177 | const Int_t maxdepth = 4; |
| 1178 | for (Int_t depth = 1; depth <= maxdepth; depth++) { |
| 1179 | Double_t triggerRate = 0; |
| 1180 | |
| 1181 | Int_t m[maxdepth]; |
| 1182 | for (Int_t d=0; d<maxdepth; d++) |
| 1183 | m[d] = 0; |
| 1184 | |
| 1185 | while (m[0] < max) { |
| 1186 | Double_t value = 1; |
| 1187 | Int_t sum = 0; |
| 1188 | for (Int_t d=0; d<depth; d++) { |
| 1189 | value *= xSection[m[d]]; |
| 1190 | sum += m[d]; |
| 1191 | } |
| 1192 | |
| 1193 | if (sum < max) { |
| 1194 | value *= triggerEff[sum]; |
| 1195 | triggerRate += value; |
| 1196 | } |
| 1197 | |
| 1198 | Int_t increase = depth-1; |
| 1199 | ++m[increase]; |
| 1200 | while (m[increase] == max && increase > 0) { |
| 1201 | m[increase] = 0; |
| 1202 | --increase; |
| 1203 | ++m[increase]; |
| 1204 | } |
| 1205 | } |
| 1206 | |
| 1207 | triggerRate *= rate * TMath::Power(collPerWindow, depth - 1); |
| 1208 | |
| 1209 | Printf("Rate for %d collisions is %f Hz", depth, triggerRate); |
| 1210 | }*/ |
| 1211 | } |
| 1212 | |
| 1213 | new TCanvas; graph->Draw("AP*"); |
| 1214 | } |
| 1215 | } |
| 1216 | |
| 144ff489 |
1217 | void AliHighMultiplicitySelector::Contamination2() |
| 1218 | { |
| 1219 | // |
| 1220 | // produces a spectrum created with N triggers |
| 1221 | // number of triggers and thresholds for the moment fixed |
| 1222 | // |
| 1223 | |
| 1224 | /* |
| 1225 | |
| 1226 | gSystem->Load("libANALYSIS"); |
| 1227 | gSystem->Load("libPWG0base"); |
| 1228 | .L AliHighMultiplicitySelector.cxx+g |
| 1229 | x = new AliHighMultiplicitySelector(); |
| 1230 | x->ReadHistograms("highmult_hijing100k.root"); |
| 1231 | x->Contamination2(); |
| 1232 | |
| 1233 | */ |
| 1234 | |
| 1235 | // get x-sections |
| 1236 | TFile* file = TFile::Open("crosssectionEx.root"); |
| 1237 | if (!file) |
| 1238 | return; |
| 1239 | |
| 1240 | TH1* xSections[2]; |
| 1241 | xSections[0] = dynamic_cast<TH1*> (gFile->Get("xSection2Ex")); |
| 1242 | xSections[1] = dynamic_cast<TH1*> (gFile->Get("xSection15Ex")); |
| 1243 | |
| 1244 | Int_t nCuts = 4; |
| 1245 | Int_t cuts[] = { 104, 134, 154, 170 }; |
| 1246 | |
| 1247 | new TCanvas; |
| 1248 | |
| 1249 | Int_t colors[] = { 2, 3, 4, 6, 7, 8 }; |
| 1250 | Int_t markers[] = { 7, 2, 4, 5, 6, 27 }; |
| 1251 | |
| 1252 | // put to 2 for second layer |
| 1253 | for (Int_t i=0; i<1; ++i) |
| 1254 | { |
| 1255 | if (!xSections[i]) |
| 1256 | continue; |
| 1257 | |
| 1258 | // relative x-section, once we have a collision |
| 1259 | xSections[i]->Scale(1.0 / xSections[i]->Integral()); |
| 1260 | |
| 1261 | Int_t max = xSections[i]->GetNbinsX(); |
| 1262 | max = 500; |
| 1263 | |
| 1264 | Float_t* xSection = new Float_t[max]; |
| 1265 | for (Int_t mult = 0; mult < max; mult++) |
| 1266 | xSection[mult] = xSections[i]->GetBinContent(mult+1); |
| 1267 | |
| 1268 | TH2* fMvsL = (i == 0) ? fMvsL1: fMvsL2; |
| 1269 | |
| 1270 | for (Int_t currentCut = 0; currentCut<nCuts; ++currentCut) |
| 1271 | { |
| 1272 | TGraph* graph = new TGraph; |
| 1273 | graph->SetMarkerColor(colors[currentCut]); |
| 1274 | graph->SetMarkerStyle(markers[currentCut]); |
| 1275 | |
| 1276 | Int_t cut = cuts[currentCut]; |
| 1277 | |
| 1278 | TH1* triggerEffHist = (TH1*) GetTriggerEfficiency(fMvsL, cut)->Clone("triggerEff"); |
| 1279 | Float_t* triggerEff = new Float_t[max]; |
| 1280 | for (Int_t mult = 0; mult < max; mult++) |
| 1281 | triggerEff[mult] = triggerEffHist->GetBinContent(mult+1); |
| 1282 | |
| 1283 | Double_t triggerRate = 0; |
| 1284 | for (Int_t mult = 0; mult < max; mult++) |
| 1285 | triggerRate += xSection[mult] * triggerEff[mult]; |
| 1286 | |
| 1287 | Printf("Raw value for 1 collision is %e", triggerRate); |
| 1288 | |
| 1289 | Double_t triggerRate2 = 0; |
| 1290 | for (Int_t mult = 0; mult < max; mult++) |
| 1291 | for (Int_t mult2 = mult; mult2 < max; mult2++) |
| 1292 | if (mult+mult2 < max) |
| 1293 | triggerRate2 += ((mult2 > mult) ? 2. : 1.) * xSection[mult] * xSection[mult2] * triggerEff[mult+mult2]; |
| 1294 | |
| 1295 | Printf("Raw value for 2 collisions is %e", triggerRate2); |
| 1296 | |
| 69b09e3b |
1297 | for (Double_t doubleRate = 0; doubleRate <= 0.3; doubleRate += 0.005) |
| 144ff489 |
1298 | { |
| 1299 | Float_t totalContamination = (triggerRate2 * doubleRate) / (triggerRate + triggerRate2 * doubleRate); |
| 1300 | |
| 1301 | //Printf("Total contamination is %.1f%%", totalContamination * 100); |
| 1302 | |
| 1303 | graph->SetPoint(graph->GetN(), doubleRate, totalContamination); |
| 1304 | } |
| 1305 | |
| 1306 | graph->Draw((currentCut == 0) ? "A*" : "* SAME"); |
| 1307 | graph->GetXaxis()->SetRangeUser(0, 1); |
| 1308 | } |
| 1309 | } |
| 1310 | } |
| 1311 | |
| 69b09e3b |
1312 | void AliHighMultiplicitySelector::Contamination3() |
| 1313 | { |
| 1314 | // |
| b3b260d1 |
1315 | // draws the contamination as function of treshold depending on a number a set of input MC and rate parameters |
| 69b09e3b |
1316 | // |
| 1317 | |
| 1318 | /* |
| 1319 | |
| 1320 | gSystem->Load("libANALYSIS"); |
| 1321 | gSystem->Load("libPWG0base"); |
| 1322 | .L AliHighMultiplicitySelector.cxx+g |
| 1323 | x = new AliHighMultiplicitySelector(); |
| 1324 | x->ReadHistograms("highmult_hijing100k.root"); |
| 1325 | x->Contamination3(); |
| 1326 | |
| 1327 | */ |
| 1328 | |
| b3b260d1 |
1329 | // output file |
| 1330 | TFile* output = TFile::Open("contamination3.root", "RECREATE"); |
| 1331 | |
| 69b09e3b |
1332 | // get x-sections |
| b3b260d1 |
1333 | TFile* file = TFile::Open("crosssectionEx_10TeV.root"); |
| 69b09e3b |
1334 | if (!file) |
| 1335 | return; |
| b3b260d1 |
1336 | |
| 1337 | TCanvas* c = new TCanvas; |
| 1338 | c->SetGridx(); |
| 1339 | c->SetGridy(); |
| 1340 | |
| 1341 | TLegend* legend = new TLegend(0.7, 0.2, 1, 0.5); |
| 1342 | legend->SetNColumns(2); |
| 1343 | |
| 1344 | TH2* dummy = new TH2F("dummy", ";Layer 1 Threshold;Contamination", 100, 95, 255, 100, 0, 1); |
| 1345 | dummy->SetStats(kFALSE); |
| 1346 | dummy->Draw(); |
| 1347 | |
| 1348 | for (Int_t mc = 0; mc < 6; mc++) |
| 69b09e3b |
1349 | { |
| b3b260d1 |
1350 | TH1* xSections[2]; |
| 1351 | TString str; |
| 1352 | str.Form("xSection2Ex_%d_%d", mc/3, mc%3); |
| 1353 | Printf("%s", str.Data()); |
| 1354 | file->cd(); |
| 1355 | xSections[0] = dynamic_cast<TH1*> (gFile->Get(str)); |
| 1356 | //xSections[1] = dynamic_cast<TH1*> (gFile->Get("xSection15Ex")); |
| 1357 | |
| 1358 | // prob for a collision in a bunch crossing |
| 1359 | Int_t nRates = 1; |
| 1360 | //Float_t rates[] = {0.02, 0.05, 0.1, 0.15, 0.2}; |
| 1361 | Float_t rates[] = {0.0636}; |
| 1362 | |
| 1363 | // bunch crossing rate in Hz |
| 1364 | Float_t bunchCrossingRate = 24. * 11245.5; |
| 1365 | |
| 1366 | Int_t colors[] = { 2, 3, 4, 6, 7, 8 }; |
| 1367 | Int_t markers[] = { 7, 2, 4, 5, 6, 27 }; |
| 1368 | |
| 1369 | // put to 2 for second layer |
| 1370 | for (Int_t i=0; i<1; ++i) |
| 69b09e3b |
1371 | { |
| b3b260d1 |
1372 | if (!xSections[i]) |
| 1373 | continue; |
| 1374 | |
| 1375 | // relative x-section, once we have a collision |
| 1376 | xSections[i]->Scale(1.0 / xSections[i]->Integral()); |
| 1377 | |
| 1378 | Int_t max = xSections[i]->GetNbinsX(); |
| 1379 | max = 500; |
| 1380 | |
| 1381 | Float_t* xSection = new Float_t[max]; |
| 1382 | for (Int_t mult = 0; mult < max; mult++) |
| 1383 | xSection[mult] = xSections[i]->GetBinContent(mult+1); |
| 1384 | |
| 1385 | TH2* fMvsL = (i == 0) ? fMvsL1: fMvsL2; |
| 1386 | |
| 1387 | for (Int_t currentRate = 0; currentRate<nRates; ++currentRate) |
| 69b09e3b |
1388 | { |
| b3b260d1 |
1389 | TGraph* graph = new TGraph; |
| 1390 | graph->SetMarkerColor(colors[currentRate]); |
| 1391 | graph->SetMarkerStyle(markers[currentRate]); |
| 1392 | |
| 1393 | TGraph* graph2 = new TGraph; |
| 1394 | |
| 1395 | Float_t rate = rates[currentRate]; |
| 1396 | |
| 1397 | Double_t singleRate = TMath::Poisson(1, rate); |
| 1398 | Double_t doubleRate = TMath::Poisson(2, rate); |
| 1399 | Double_t tripleRate = TMath::Poisson(3, rate); |
| 1400 | |
| 1401 | Printf("single = %f, double = %f, triple = %f", singleRate, doubleRate, tripleRate); |
| 1402 | |
| 1403 | for (Int_t cut = 100; cut <= 251; cut += 10) |
| 1404 | { |
| 1405 | Printf("Cut at %d", cut); |
| 1406 | |
| 1407 | TH1* triggerEffHist = (TH1*) GetTriggerEfficiency(fMvsL, cut)->Clone("triggerEff"); |
| 1408 | Float_t* triggerEff = new Float_t[max]; |
| 1409 | for (Int_t mult = 0; mult < max; mult++) |
| 1410 | triggerEff[mult] = triggerEffHist->GetBinContent(mult+1); |
| 1411 | |
| 1412 | Double_t triggerRate = 0; |
| 1413 | for (Int_t mult = 0; mult < max; mult++) |
| 1414 | triggerRate += xSection[mult] * triggerEff[mult]; |
| 1415 | |
| 1416 | //Printf(" Raw value for 1 collision is %e; Rate: %.1f Hz", triggerRate, triggerRate * singleRate * bunchCrossingRate); |
| 1417 | |
| 1418 | Double_t triggerRate2 = 0; |
| 1419 | for (Int_t mult = 0; mult < max; mult++) |
| 1420 | for (Int_t mult2 = mult; mult2 < max; mult2++) |
| 1421 | if (mult+mult2 < max) |
| 1422 | triggerRate2 += ((mult2 > mult) ? 2. : 1.) * xSection[mult] * xSection[mult2] * triggerEff[mult+mult2]; |
| 1423 | |
| 1424 | //Printf(" Raw value for 2 collisions is %e; Rate: %.1f Hz", triggerRate2, triggerRate2 * doubleRate * bunchCrossingRate); |
| 1425 | |
| 1426 | Double_t triggerRate3 = 0; |
| 1427 | for (Int_t mult = 0; mult < max; mult++) |
| 1428 | for (Int_t mult2 = 0; mult2 < max; mult2++) |
| 1429 | for (Int_t mult3 = 0; mult3 < max; mult3++) |
| 1430 | if (mult+mult2+mult3 < max) |
| 1431 | triggerRate3 += xSection[mult] * xSection[mult2] * xSection[mult3] * triggerEff[mult+mult2+mult3]; |
| 1432 | |
| 1433 | //Printf(" Raw value for 3 collisions is %e; Rate: %.1f Hz", triggerRate3, triggerRate3 * tripleRate * bunchCrossingRate); |
| 1434 | |
| 1435 | Printf(" Rates: %.1f Hz; %.1f Hz; %.1f Hz", triggerRate * singleRate * bunchCrossingRate, triggerRate2 * doubleRate * bunchCrossingRate, triggerRate3 * tripleRate * bunchCrossingRate); |
| 1436 | |
| 1437 | Float_t totalTrigger = (triggerRate * singleRate + triggerRate2 * doubleRate + triggerRate3 * tripleRate); |
| 1438 | |
| 1439 | Printf(" Total trigger rate: %.1f Hz", totalTrigger * bunchCrossingRate); |
| 1440 | |
| 1441 | //if (totalTrigger * bunchCrossingRate > 200) |
| 1442 | // continue; |
| 1443 | |
| 1444 | Float_t totalContamination = (triggerRate2 * doubleRate + triggerRate3 * tripleRate) / totalTrigger; |
| 1445 | //if (totalContamination > 0.99) |
| 1446 | // break; |
| 1447 | |
| 1448 | Printf(" Total contamination is %.1f%%", totalContamination * 100); |
| 1449 | |
| 1450 | graph->SetPoint(graph->GetN(), cut, totalContamination); |
| 1451 | graph2->SetPoint(graph->GetN(), cut, totalTrigger * bunchCrossingRate); |
| 1452 | } |
| 1453 | |
| 1454 | graph->SetMarkerStyle(mc+20); |
| 1455 | graph->SetMarkerColor(currentRate+1); |
| 1456 | graph->Draw("P SAME"); |
| 1457 | graph->GetXaxis()->SetTitle("Layer 1 threshold"); |
| 1458 | graph->GetYaxis()->SetTitle("Contamination"); |
| 1459 | graph->GetYaxis()->SetRangeUser(0, 1); |
| 1460 | |
| 1461 | if (currentRate == 0) |
| 1462 | { |
| 1463 | const char* legendLabel[] = { "Pythia Slope 1", "Pythia Slope 2", "Pythia Slope 3", "Phojet Slope 1", "Phojet Slope 2", "Phojet Slope 3" }; |
| 1464 | legend->AddEntry(graph, legendLabel[mc], "P"); |
| 1465 | } |
| 69b09e3b |
1466 | |
| b3b260d1 |
1467 | output->cd(); |
| 1468 | graph->Write(Form("%s_%d_cont", str.Data(), currentRate)); |
| 1469 | graph2->Write(Form("%s_%d_rate", str.Data(), currentRate)); |
| 1470 | } |
| 1471 | } |
| 1472 | } |
| 1473 | |
| 1474 | output->Close(); |
| 1475 | |
| 1476 | legend->Draw(); |
| 1477 | } |
| 69b09e3b |
1478 | |
| b3b260d1 |
1479 | void AliHighMultiplicitySelector::Contamination_Reach() |
| 1480 | { |
| 1481 | // plot the multiplicity reach based on the output from Contamination3() |
| 1482 | // for each rate case and each MC, a certain number of events is required starting counting from the highest multiplicity |
| 1483 | // note that the reach of different MC cannot be compared with each other |
| 69b09e3b |
1484 | |
| b3b260d1 |
1485 | /* |
| 69b09e3b |
1486 | |
| b3b260d1 |
1487 | gSystem->Load("libANALYSIS"); |
| 1488 | gSystem->Load("libPWG0base"); |
| 1489 | .L AliHighMultiplicitySelector.cxx+g |
| 1490 | x = new AliHighMultiplicitySelector(); |
| 1491 | x->ReadHistograms("highmult_hijing100k.root"); |
| 1492 | x->Contamination_Reach(); |
| 69b09e3b |
1493 | |
| b3b260d1 |
1494 | */ |
| 69b09e3b |
1495 | |
| b3b260d1 |
1496 | TCanvas* c = new TCanvas("c", "c", 800, 600); |
| 1497 | c->Divide(2, 3); |
| 1498 | |
| 1499 | // prob for a collision in a bunch crossing |
| 1500 | Int_t nRates = 1; |
| 1501 | //Float_t rates[] = {0.02, 0.05, 0.1, 0.15, 0.2}; |
| 1502 | Float_t rates[] = {0.0636}; |
| 69b09e3b |
1503 | |
| b3b260d1 |
1504 | // bunch crossing rate in Hz |
| 1505 | Float_t bunchCrossingRate = 24. * 11245.5; |
| 69b09e3b |
1506 | |
| b3b260d1 |
1507 | TH2* dummy = new TH2F("dummy", ";Coll/bunch crossing;multiplicity reach", 100, 0, 0.3, 100, 50, 350); |
| 1508 | //TH2* dummy = new TH2F("dummy", ";Coll/bunch crossing;fractional cross-section", 100, 0, 0.3, 1000, 1e-6, 0.1); |
| 1509 | dummy->SetStats(kFALSE); |
| 69b09e3b |
1510 | |
| b3b260d1 |
1511 | const char* legendLabel[] = { "Pythia Slope 1", "Pythia Slope 2", "Pythia Slope 3", "Phojet Slope 1", "Phojet Slope 2", "Phojet Slope 3" }; |
| 69b09e3b |
1512 | |
| b3b260d1 |
1513 | TFile* mcFile = TFile::Open("crosssectionEx_10TeV.root"); |
| 1514 | TFile* contFile = TFile::Open("contamination3.root"); |
| 69b09e3b |
1515 | |
| b3b260d1 |
1516 | // for comparison: how many MB events can one take at the same time |
| 1517 | Int_t mbEvents = 2e6 * 500; |
| 69b09e3b |
1518 | |
| b3b260d1 |
1519 | for (Int_t mc=0; mc<6; mc++) |
| 1520 | { |
| 1521 | mcFile->cd(); |
| 1522 | TH1* mcHist = (TH1*) gFile->Get(Form("xSection2Ex_%d_%d", mc/3, mc%3)); |
| 1523 | mcHist->Scale(1.0 / mcHist->Integral()); |
| 1524 | |
| 1525 | c->cd(mc+1);//->SetLogy(); |
| 1526 | c->SetGridx(); |
| 1527 | c->SetGridy(); |
| 1528 | dummy->Draw(); |
| 1529 | |
| 1530 | Int_t color = 0; |
| 1531 | for (Int_t requiredEvents = 300; requiredEvents <= 3000000; requiredEvents *= 10) |
| 1532 | { |
| 1533 | TGraph* reach = new TGraph; |
| 1534 | |
| 1535 | color++; |
| 1536 | if (color == 5) |
| 1537 | color++; |
| 1538 | |
| 1539 | Float_t requiredRate = (Float_t) requiredEvents / 1e6; |
| 1540 | Printf("Required rate is %f", requiredRate); |
| 1541 | |
| 1542 | // find reach without trigger |
| 1543 | Int_t mbReach = 1000; |
| 1544 | while (mcHist->Integral(mcHist->FindBin(mbReach), mcHist->GetNbinsX()) < (Float_t) requiredEvents / mbEvents && mbReach > 1) |
| 1545 | mbReach--; |
| 1546 | Printf("MB reach is %d with %f events", mbReach, mcHist->Integral(mcHist->FindBin(mbReach), mcHist->GetNbinsX()) * mbEvents); |
| 1547 | |
| 1548 | for (Int_t rate=0; rate<nRates; rate++) |
| 1549 | { |
| 1550 | contFile->cd(); |
| 1551 | TGraph* cont = (TGraph*) gFile->Get(Form("xSection2Ex_%d_%d_%d_cont", mc/3, mc%3, rate)); |
| 1552 | TGraph* rateh = (TGraph*) gFile->Get(Form("xSection2Ex_%d_%d_%d_rate", mc/3, mc%3, rate)); |
| 1553 | |
| 1554 | Double_t singleRate = TMath::Poisson(1, rates[rate]); |
| 1555 | Double_t totalCollRate = singleRate * bunchCrossingRate; |
| 1556 | Printf("collisions/bc: %f; coll. rate: %f", singleRate, totalCollRate); |
| 1557 | |
| 1558 | // find 200 Hz limit |
| 1559 | Int_t low = 100; |
| 1560 | while (rateh->Eval(low) > 200) |
| 1561 | low++; |
| 1562 | |
| 1563 | // find contamination limit |
| 1564 | Int_t high = 100; |
| 1565 | while (cont->Eval(high) < 0.9 && high < 250) |
| 1566 | high++; |
| 1567 | |
| 1568 | Printf("MC %d Rate %d: Acceptable threshold region is %d to %d", mc, rate, low, high); |
| 1569 | // find reachable multiplicity; include contamination in rate calculation |
| 1570 | // TH1* triggerEffHist = (TH1*) GetTriggerEfficiency(fMvsL, cut)->Clone("triggerEff"); |
| 1571 | |
| 1572 | // trigger efficiency as function of multiplicity in range mult <= ... <= high |
| 1573 | //new TCanvas; fMvsL1->Draw("COLZ"); |
| 1574 | TH1* triggerEffHist = (TH1*) GetTriggerEfficiency(fMvsL1, low, high); |
| 1575 | |
| 1576 | //new TCanvas; triggerEffHist->DrawCopy(); |
| 1577 | triggerEffHist->Multiply(mcHist); |
| 1578 | |
| 1579 | Float_t fractionXSection = triggerEffHist->Integral(); |
| 1580 | Printf("The fraction of the cross-section is %f", fractionXSection); |
| 1581 | |
| 1582 | //new TCanvas; triggerEffHist->DrawCopy(); |
| 1583 | triggerEffHist->Scale(totalCollRate); |
| 1584 | //new TCanvas; triggerEffHist->DrawCopy(); gPad->SetLogy(); |
| 1585 | |
| 1586 | Float_t achievedRate = 0; |
| 1587 | Int_t mult = 1000; |
| 1588 | while (1) |
| 1589 | { |
| 1590 | achievedRate = triggerEffHist->Integral(triggerEffHist->FindBin(mult), triggerEffHist->GetNbinsX()); |
| 1591 | |
| 1592 | if (achievedRate >= requiredRate) |
| 1593 | break; |
| 1594 | |
| 1595 | if (mult == 1) |
| 1596 | break; |
| 1597 | |
| 1598 | mult--; |
| 1599 | } |
| 1600 | |
| 1601 | Printf("Achieved rate %f above multiplicity %d", achievedRate, mult); |
| 1602 | |
| 1603 | if (achievedRate < requiredRate) |
| 1604 | { |
| 1605 | Printf("Achieved rate too low"); |
| 1606 | continue; |
| 1607 | } |
| 1608 | |
| 1609 | reach->SetPoint(reach->GetN(), rates[rate], mult); |
| 1610 | //reach->SetPoint(reach->GetN(), rates[rate], fractionXSection); |
| 1611 | |
| 1612 | |
| 1613 | //return; |
| 69b09e3b |
1614 | } |
| b3b260d1 |
1615 | |
| 1616 | reach->SetMarkerColor(color); |
| 1617 | reach->Draw("SAME*"); |
| 1618 | |
| 1619 | TLine* line = new TLine(0, mbReach, 0.3, mbReach); |
| 1620 | line->SetLineColor(color); |
| 1621 | //line->Draw(); |
| 1622 | } |
| 1623 | |
| 1624 | TText* text = new TText; |
| 1625 | text->DrawText(0.2, 325, legendLabel[mc]); |
| 1626 | //return; |
| 69b09e3b |
1627 | } |
| 1628 | } |
| 1629 | |
| 9608df41 |
1630 | void AliHighMultiplicitySelector::DrawHistograms() |
| 1631 | { |
| a9aed06c |
1632 | // draws the histograms |
| 1633 | |
| 9608df41 |
1634 | /* |
| 1635 | |
| 1636 | gSystem->Load("libPWG0base"); |
| 1637 | .L AliHighMultiplicitySelector.cxx+ |
| 1638 | x = new AliHighMultiplicitySelector(); |
| 1639 | x->ReadHistograms("highmult_pythia.root"); |
| 1640 | x->DrawHistograms(); |
| 1641 | |
| 1642 | |
| 1643 | gSystem->Load("libPWG0base"); |
| 1644 | .L AliHighMultiplicitySelector.cxx+ |
| 1645 | x = new AliHighMultiplicitySelector(); |
| 1646 | x->ReadHistograms("highmult_hijing.root"); |
| 1647 | x->DrawHistograms(); |
| 1648 | |
| 1649 | gSystem->Load("libPWG0base"); |
| 1650 | .L AliHighMultiplicitySelector.cxx+ |
| 1651 | x = new AliHighMultiplicitySelector(); |
| 1652 | x->ReadHistograms("highmult_central.root"); |
| 1653 | x->DrawHistograms(); |
| 1654 | |
| 745d6088 |
1655 | gSystem->Load("libANALYSIS"); |
| 9608df41 |
1656 | gSystem->Load("libPWG0base"); |
| 1657 | .L AliHighMultiplicitySelector.cxx+ |
| 1658 | x = new AliHighMultiplicitySelector(); |
| 1659 | x->ReadHistograms("highmult_hijing100k.root"); |
| 1660 | x->DrawHistograms(); |
| 1661 | |
| 1662 | */ |
| 1663 | |
| 1664 | /*TCanvas* canvas = new TCanvas("chips", "chips", 600, 400); |
| 1665 | |
| 1666 | fChipsLayer2->SetLineColor(2); |
| 1667 | fChipsLayer2->SetStats(kFALSE); |
| 1668 | fChipsLayer1->SetStats(kFALSE); |
| 1669 | fChipsLayer2->SetTitle(""); |
| 1670 | fChipsLayer2->DrawCopy(); |
| 1671 | fChipsLayer1->DrawCopy("SAME"); |
| 1672 | canvas->SaveAs("chips.gif"); |
| 1673 | |
| 1674 | canvas = new TCanvas("L1vsL2", "L1vsL2", 600, 400); |
| 1675 | fL1vsL2->SetStats(kFALSE); |
| 1676 | fL1vsL2->DrawCopy("COLZ"); |
| 1677 | gPad->SetLogz(); |
| 1678 | canvas->SaveAs("L1vsL2.gif");*/ |
| 1679 | |
| f6093269 |
1680 | TCanvas *canvas = new TCanvas("L1", "L1", 800, 600); |
| 1681 | canvas->SetTopMargin(0.05); |
| 1682 | canvas->SetRightMargin(0.12); |
| 9608df41 |
1683 | fMvsL1->SetStats(kFALSE); |
| 1684 | fMvsL1->DrawCopy("COLZ"); |
| 1685 | gPad->SetLogz(); |
| 1686 | |
| 1687 | canvas->SaveAs("L1NoCurve.gif"); |
| f6093269 |
1688 | canvas->SaveAs("L1NoCurve.eps"); |
| 9608df41 |
1689 | |
| 745d6088 |
1690 | TLine* line = new TLine(fMvsL1->GetXaxis()->GetXmin(), 150, fMvsL1->GetXaxis()->GetXmax(), 150); |
| 1691 | line->SetLineWidth(2); |
| 1692 | line->SetLineColor(kRed); |
| 1693 | line->Draw(); |
| 1694 | |
| 1695 | canvas->SaveAs("L1NoCurveCut.gif"); |
| 1696 | canvas->SaveAs("L1NoCurveCut.eps"); |
| 1697 | |
| 1698 | return; |
| 1699 | |
| 9608df41 |
1700 | // draw corresponding theoretical curve |
| 1701 | TF1* func = new TF1("func", "[0]*(1-(1-1/[0])**x)", 1, 1000); |
| 1702 | func->SetParameter(0, 400-5*2); |
| 1703 | func->DrawCopy("SAME"); |
| 1704 | |
| 1705 | canvas->SaveAs("L1.gif"); |
| 1706 | |
| 1707 | canvas = new TCanvas("L2", "L2", 600, 400); |
| 1708 | //fMvsL2->GetYaxis()->SetRangeUser(0, 150); |
| 1709 | fMvsL2->SetStats(kFALSE); |
| 1710 | fMvsL2->DrawCopy("COLZ"); |
| 1711 | gPad->SetLogz(); |
| 1712 | func->SetParameter(0, 800-5*4); |
| 1713 | func->DrawCopy("SAME"); |
| 1714 | canvas->SaveAs("L2.gif"); |
| 1715 | |
| f6093269 |
1716 | // get x-sections |
| 1717 | TFile* file = TFile::Open("crosssectionEx.root"); |
| 1718 | if (file) |
| 1719 | { |
| 1720 | TH1* xSection2 = dynamic_cast<TH1*> (gFile->Get("xSection2Ex")); |
| 1721 | TH1* xSection15 = dynamic_cast<TH1*> (gFile->Get("xSection15Ex")); |
| 1722 | |
| 1723 | MakeGraphs2("Layer1", xSection2, fMvsL1); |
| 1724 | return; |
| 1725 | |
| 1726 | // 5 times the mean |
| 1727 | //MakeGraphs("Layer1", xSection2, fMvsL1, (Int_t) (xSection2->GetMean() * 5)); //75 * 2 * 2); |
| 1728 | //MakeGraphs("Layer2", xSection15, fMvsL2, (Int_t) (xSection15->GetMean() * 5)); //(Int_t) (75 * 1.5 * 2)); |
| 1729 | |
| 1730 | MakeGraphs("Layer1", xSection2, fMvsL1, (Int_t) (xSection2->GetMean() * 8)); |
| 1731 | MakeGraphs("Layer2", xSection15, fMvsL2, (Int_t) (xSection15->GetMean() * 8)); |
| 1732 | MakeGraphs("Layer1", xSection2, fMvsL1, (Int_t) (xSection2->GetMean() * 9)); |
| 1733 | MakeGraphs("Layer2", xSection15, fMvsL2, (Int_t) (xSection15->GetMean() * 9)); |
| 1734 | MakeGraphs("Layer1", xSection2, fMvsL1, (Int_t) (xSection2->GetMean() * 10)); |
| 1735 | MakeGraphs("Layer2", xSection15, fMvsL2, (Int_t) (xSection15->GetMean() * 10)); |
| 1736 | |
| 1737 | file->Close(); |
| 1738 | } |
| 1739 | |
| 9608df41 |
1740 | // make spread hists |
| 1741 | TGraph* spread = new TGraph; |
| 1742 | spread->SetTitle("Spread L1;true multiplicity;RMS"); |
| 1743 | |
| 1744 | for (Int_t i=1; i<=fMvsL1->GetNbinsX(); ++i) |
| 1745 | { |
| 1746 | TH1* proj = fMvsL1->ProjectionY("proj", i, i); |
| 1747 | spread->SetPoint(spread->GetN(), i, proj->GetRMS()); |
| 1748 | } |
| 1749 | |
| 1750 | canvas = new TCanvas("SpreadL1", "SpreadL1", 600, 400); |
| 1751 | spread->Draw("A*"); |
| 1752 | canvas->SaveAs(Form("%s.gif", canvas->GetName())); |
| 1753 | |
| 1754 | TF1* log = new TF1("log", "[0]*log([1]*x)", 1, 150); |
| 1755 | log->SetParLimits(0, 0, 10); |
| 1756 | log->SetParLimits(1, 1e-5, 10); |
| 1757 | |
| 1758 | spread->Fit(log, "", "", 1, 150); |
| 1759 | log->DrawCopy("SAME"); |
| 1760 | |
| 1761 | TGraph* spread2 = new TGraph; |
| 1762 | spread2->SetTitle("Spread L2;true multiplicity;RMS"); |
| 1763 | |
| 1764 | for (Int_t i=1; i<=fMvsL1->GetNbinsX(); ++i) |
| 1765 | { |
| 1766 | TH1* proj = fMvsL2->ProjectionY("proj", i, i); |
| 1767 | spread2->SetPoint(spread2->GetN(), i, proj->GetRMS()); |
| 1768 | } |
| 1769 | |
| 1770 | canvas = new TCanvas("SpreadL2", "SpreadL2", 600, 400); |
| 1771 | spread2->Draw("A*"); |
| 1772 | canvas->SaveAs(Form("%s.gif", canvas->GetName())); |
| 1773 | |
| 1774 | spread2->Fit(log, "", "", 1, 150); |
| 1775 | log->DrawCopy("SAME"); |
| 1776 | |
| 9608df41 |
1777 | canvas = new TCanvas("Clusters_L1", "Clusters_L1", 600, 400); |
| 1778 | fClvsL1->SetStats(kFALSE); |
| 1779 | fClvsL1->DrawCopy("COLZ"); |
| 1780 | gPad->SetLogz(); |
| 1781 | |
| 1782 | func->SetParameter(0, 400-5*2); |
| 1783 | func->DrawCopy("SAME"); |
| 1784 | |
| 1785 | canvas->SaveAs("Clusters_L1.gif"); |
| 1786 | |
| 1787 | canvas = new TCanvas("Clusters_L2", "Clusters_L2", 600, 400); |
| 1788 | fClvsL2->SetStats(kFALSE); |
| 1789 | fClvsL2->DrawCopy("COLZ"); |
| 1790 | gPad->SetLogz(); |
| 1791 | func->SetParameter(0, 800-5*4); |
| 1792 | func->DrawCopy("SAME"); |
| 1793 | canvas->SaveAs("Clusters_L2.gif"); |
| 1794 | |
| 1795 | canvas = new TCanvas("ChipsFired", "ChipsFired", 600, 400); |
| 1796 | //fChipsFired->GetYaxis()->SetRangeUser(0, 150); |
| 1797 | fChipsFired->SetStats(kFALSE); |
| 1798 | fChipsFired->DrawCopy("COLZ"); |
| 1799 | canvas->SaveAs("ChipsFired.gif"); |
| 1800 | |
| 1801 | /*TH1F* tresholdHistL1 = new TH1F("tresholdHistL1", ";chip treshold;<n>", BINNING_LAYER1); |
| 1802 | TH1F* tresholdHistL2 = new TH1F("tresholdHistL2", ";chip treshold;<n>", BINNING_LAYER2); |
| 1803 | |
| 1804 | for (Int_t treshold = 0; treshold < 800; treshold++) |
| 1805 | { |
| 1806 | if (fPrimaryL1->Draw("multiplicity>>mult", Form("firedChips>%d", treshold), "goff") > 0) |
| 1807 | { |
| 1808 | TH1F* mult = dynamic_cast<TH1F*> (fPrimaryL1->GetHistogram()); |
| 1809 | if (mult) |
| 1810 | tresholdHistL1->Fill(treshold, mult->GetMean()); |
| 1811 | } |
| 1812 | if (fPrimaryL2->Draw("multiplicity>>mult", Form("firedChips>%d", treshold), "goff") > 0) |
| 1813 | { |
| 1814 | TH1F* mult = dynamic_cast<TH1F*> (fPrimaryL2->GetHistogram()); |
| 1815 | if (mult) |
| 1816 | tresholdHistL2->Fill(treshold, mult->GetMean()); |
| 1817 | } |
| 1818 | } |
| 1819 | |
| 1820 | canvas = new TCanvas("TresholdL1", "TresholdL1", 600, 400); |
| 1821 | tresholdHistL1->Draw(); |
| 1822 | canvas->SaveAs(Form("%s.gif", canvas->GetName())); |
| 1823 | |
| 1824 | canvas = new TCanvas("TresholdL2", "TresholdL2", 600, 400); |
| 1825 | tresholdHistL2->Draw(); |
| 1826 | canvas->SaveAs(Form("%s.gif", canvas->GetName()));*/ |
| 1827 | |
| 1828 | fPrimaryL1->Draw("(chipsByPrimaries/firedChips):multiplicity>>eff1", "", "prof goff"); |
| 1829 | fPrimaryL2->Draw("(chipsByPrimaries/firedChips):multiplicity>>eff2", "", "prof goff"); |
| 1830 | |
| 1831 | canvas = new TCanvas("Efficiency", "Efficiency", 600, 400); |
| 1832 | fPrimaryL1->GetHistogram()->SetStats(kFALSE); |
| 1833 | fPrimaryL1->GetHistogram()->Draw(); |
| 1834 | fPrimaryL2->GetHistogram()->SetLineColor(2); |
| 1835 | fPrimaryL2->GetHistogram()->SetStats(kFALSE); |
| 1836 | fPrimaryL2->GetHistogram()->Draw("SAME"); |
| 1837 | canvas->SaveAs(Form("%s.gif", canvas->GetName())); |
| 1838 | |
| 1839 | canvas = new TCanvas("ClustersZL1", "ClustersZL1", 600, 400); |
| 1840 | fClusterZL1->Rebin(2); |
| 1841 | fClusterZL1->Draw(); |
| 1842 | canvas->SaveAs(Form("%s.gif", canvas->GetName())); |
| 1843 | |
| 1844 | canvas = new TCanvas("ClustersZL2", "ClustersZL2", 600, 400); |
| 1845 | fClusterZL2->Draw(); |
| 1846 | fClusterZL2->Rebin(2); |
| 1847 | canvas->SaveAs(Form("%s.gif", canvas->GetName())); |
| 1848 | } |
| a9aed06c |
1849 | |
| 1850 | TGraph* AliHighMultiplicitySelector::IntFractRate() |
| 1851 | { |
| 1852 | // A plot which shows the fractional rate above any threshold |
| 1853 | // as function of threshold (i.e. the integral of dSigma/dN as function of |
| 1854 | // N, normalised to 1 for N=0) |
| 1855 | |
| 1856 | /* |
| d1594f8a |
1857 | gSystem->Load("libANALYSIS"); |
| a9aed06c |
1858 | gSystem->Load("libPWG0base"); |
| 1859 | .L AliHighMultiplicitySelector.cxx+ |
| 1860 | x = new AliHighMultiplicitySelector(); |
| 1861 | x->ReadHistograms("highmult_hijing100k.root"); |
| 1862 | x->IntFractRate(); |
| 1863 | */ |
| 1864 | |
| 1865 | // get x-sections |
| 1866 | TFile* file = TFile::Open("crosssectionEx.root"); |
| 1867 | if (!file) |
| 1868 | return 0; |
| 1869 | |
| 1870 | TH1* xSection; |
| 1871 | xSection = dynamic_cast<TH1*> (gFile->Get("xSection2Ex")); |
| 1872 | |
| 1873 | TGraph* result = new TGraph; |
| 1874 | |
| 1875 | for (Int_t threshold = 0; threshold < 300; threshold += 2) |
| 1876 | { |
| 1877 | TH1* proj = GetXSectionCut(xSection, fMvsL1, threshold); |
| 1878 | |
| 1879 | //new TCanvas; proj->DrawCopy(); |
| 1880 | |
| 1881 | Double_t integral = proj->Integral(); |
| 1882 | |
| d1594f8a |
1883 | Printf("Cut at %d, integral is %e", threshold, integral); |
| a9aed06c |
1884 | |
| 1885 | result->SetPoint(result->GetN(), threshold, integral); |
| 1886 | } |
| 1887 | |
| 1888 | TCanvas* canvas = new TCanvas("IntFractRate", "IntFractRate", 600, 400); |
| 1889 | gPad->SetLogy(); |
| 1890 | |
| 1891 | result->Draw("A*"); |
| 1892 | result->GetXaxis()->SetTitle("threshold"); |
| 1893 | result->GetYaxis()->SetTitle("integrated fractional rate above threshold"); |
| 1894 | |
| 1895 | canvas->SaveAs(Form("%s.gif", canvas->GetName())); |
| 1896 | |
| 1897 | return result; |
| 1898 | } |
| d1594f8a |
1899 | |
| 1900 | void AliHighMultiplicitySelector::MBComparison() |
| 1901 | { |
| 1902 | // |
| 1903 | // finds the threshold from which onwards the number of found events above N times the mean |
| 1904 | // is higher using a high mult. trigger than just triggering with MB |
| 1905 | // |
| 1906 | |
| 1907 | /* |
| 1908 | |
| 1909 | gSystem->Load("libANALYSIS"); |
| 1910 | gSystem->Load("libPWG0base"); |
| 1911 | .L AliHighMultiplicitySelector.cxx+g |
| 1912 | x = new AliHighMultiplicitySelector(); |
| 1913 | x->ReadHistograms("highmult_hijing100k.root"); |
| 1914 | x->MBComparison(); |
| 1915 | |
| 1916 | */ |
| 1917 | |
| 1918 | // get x-sections |
| 1919 | TFile* file = TFile::Open("crosssectionEx.root"); |
| 1920 | if (!file) |
| 1921 | return; |
| 1922 | |
| 1923 | TH1* xSections[2]; |
| 1924 | xSections[0] = dynamic_cast<TH1*> (gFile->Get("xSection2Ex")); |
| 1925 | xSections[1] = dynamic_cast<TH1*> (gFile->Get("xSection15Ex")); |
| 1926 | |
| 1927 | // rate = L * sigma |
| 1928 | // sigma ~ 80 mb (Pythia 14 TeV) |
| 1929 | // 10^28 lum --> 8e2 Hz |
| 1930 | // 10^31 lum --> 8e5 Hz |
| 1931 | Int_t nRates = 4; |
| 1932 | Double_t rates[] = { 8e2, 8e3, 8e4, 8e5 }; |
| 1933 | |
| 1934 | // threshold in number of fired chips for corresponding rate |
| 1935 | //Int_t cuts[] = { 104, 134, 154, 170 }; // values for 20 Hz |
| 1936 | Int_t cuts[] = { 82, 124, 147, 164 }; // values for 50 Hz |
| 1937 | |
| 1938 | // bandwidth, fractions (for MB, high mult.) |
| 1939 | Float_t bandwidth = 1e3; |
| 1940 | Float_t fractionMB = 0.5; |
| 1941 | Float_t fractionHM = 0.05; |
| 1942 | |
| 1943 | // different limits to define "interesting events" |
| 1944 | Int_t nLimits = 9; |
| 1945 | Int_t limits[] = { 0, 1, 2, 4, 6, 7, 8, 9, 10 }; |
| 1946 | |
| 1947 | // put to 2 for second layer |
| 1948 | for (Int_t i=0; i<1; ++i) |
| 1949 | { |
| 1950 | if (!xSections[i]) |
| 1951 | continue; |
| 1952 | |
| 1953 | TH1* xSection = xSections[i]; |
| 1954 | TH2* fMvsL = (i == 0) ? fMvsL1: fMvsL2; |
| 1955 | |
| 1956 | // relative x-section, once we have a collision |
| 1957 | xSection->Scale(1.0 / xSection->Integral()); |
| 1958 | |
| 1959 | xSection->SetStats(kFALSE); |
| 1960 | xSection->SetTitle(""); //(i == 0) ? "SPD Layer 1" : "SPD Layer 2"); |
| 1961 | xSection->GetXaxis()->SetTitle(Form("true multiplicity in |#eta| < %.1f", (i == 0) ? 2.0 : 1.5)); |
| 1962 | xSection->GetXaxis()->SetRangeUser(0, (i == 0) ? 450 : 350); |
| 1963 | xSection->GetYaxis()->SetTitleOffset(1.2); |
| 1964 | |
| 1965 | TCanvas* canvas = new TCanvas("MBComparison", "MBComparison", 1000, 800); |
| 1966 | canvas->Divide(3, 3); |
| 1967 | |
| 1968 | for (Int_t currentLimit = 0; currentLimit<nLimits; currentLimit++) |
| 1969 | { |
| 1970 | // limit is N times the mean |
| 1971 | Int_t limit = (Int_t) (xSection->GetMean() * limits[currentLimit]); |
| 1972 | if (limit < 1) |
| 1973 | limit = 1; |
| 1974 | |
| 1975 | TGraph* graphMB = new TGraph; |
| 1976 | graphMB->SetTitle(Form("Events with %d times above <n> (i.e. n >= %d)", limits[currentLimit], limit)); |
| 1977 | graphMB->SetMarkerStyle(20); |
| 1978 | |
| 1979 | TGraph* graphBoth = new TGraph; |
| 1980 | graphBoth->SetMarkerStyle(21); |
| 1981 | |
| 1982 | Float_t min = bandwidth; |
| 1983 | Float_t max = 0; |
| 1984 | |
| 1985 | for (Int_t current = 0; current<nRates; ++current) |
| 1986 | { |
| 1987 | Float_t rate = rates[current]; |
| 1988 | Int_t cut = cuts[current]; |
| 1989 | |
| 1990 | TH1* triggerEff = (TH1*) GetTriggerEfficiency(fMvsL, cut)->Clone("triggerEff"); |
| 1991 | TH1* proj = GetXSectionCut(xSection, fMvsL, cut); |
| 1992 | |
| 1993 | Float_t downScaleMB1 = rate / bandwidth; |
| 1994 | if (downScaleMB1 < 1) |
| 1995 | downScaleMB1 = 1; |
| 1996 | |
| 1997 | Float_t downScaleMB2 = rate / (bandwidth * fractionMB); |
| 1998 | if (downScaleMB2 < 1) |
| 1999 | downScaleMB2 = 1; |
| 2000 | |
| 2001 | Float_t downScaleHM = rate * proj->Integral(1, xSection->GetNbinsX()) / (bandwidth * fractionHM); |
| 2002 | if (downScaleHM < 1) |
| 2003 | downScaleHM = 1; |
| 2004 | |
| 2005 | Float_t rateMB1 = rate / downScaleMB1 * xSection->Integral(limit, xSection->GetNbinsX()); |
| 2006 | Float_t rateMB2 = rate / downScaleMB2 * xSection->Integral(limit, xSection->GetNbinsX()); |
| 2007 | Float_t rateHM = rate / downScaleHM * proj->Integral(limit, xSection->GetNbinsX()); |
| 2008 | Float_t combinedRate = rateMB2 + rateHM; |
| 2009 | |
| 2010 | graphMB->SetPoint(graphMB->GetN(), rate, rateMB1); |
| 2011 | graphBoth->SetPoint(graphBoth->GetN(), rate, combinedRate); |
| 2012 | |
| 2013 | min = TMath::Min(min, TMath::Min(rateMB1, combinedRate)); |
| 2014 | max = TMath::Max(min, TMath::Max(rateMB1, combinedRate)); |
| 2015 | |
| 2016 | Printf("The rates for events with %d times above <n> (i.e. n >= %d) at a rate of %.2e Hz is:", limits[currentLimit], limit, rate); |
| 2017 | Printf(" %.2e Hz in MB-only mode", rateMB1); |
| 2018 | Printf(" %.2e Hz = %.2e Hz + %.2e Hz in MB + high mult. mode", combinedRate, rateMB2, rateHM); |
| 2019 | |
| 2020 | Printf(" The downscale factors are: %.2f %.2f %.2f", downScaleMB1, downScaleMB2, downScaleHM); |
| 2021 | |
| 2022 | Int_t triggerLimit = 0; |
| 2023 | for (Int_t bin = 1; bin <= triggerEff->GetNbinsX(); bin++) |
| 2024 | if (triggerEff->GetBinContent(bin) < 0.5) |
| 2025 | triggerLimit = (Int_t) triggerEff->GetXaxis()->GetBinCenter(bin); |
| 2026 | |
| 2027 | Printf(" Efficiency limit (50%%) is at multiplicity %d", triggerLimit); |
| 144ff489 |
2028 | Float_t fractionGood = proj->Integral(triggerLimit, proj->GetNbinsX()) / proj->Integral(); |
| 2029 | Printf(" %.2f %% of the events are above the trigger limit", fractionGood * 100); |
| d1594f8a |
2030 | |
| 2031 | if (triggerLimit > limit) |
| 2032 | Printf(" WARNING: interesting events also counted inside the trigger limit"); |
| 2033 | |
| 2034 | Printf(""); |
| 2035 | } |
| 2036 | |
| 2037 | canvas->cd(currentLimit+1)->SetLogx(); |
| 2038 | canvas->cd(currentLimit+1)->SetLogy(); |
| 2039 | |
| 2040 | graphMB->Draw("AP"); |
| 2041 | graphBoth->Draw("P SAME"); |
| 2042 | |
| 2043 | graphMB->GetYaxis()->SetRangeUser(0.5 * min, 2 * max); |
| 2044 | graphMB->GetXaxis()->SetTitle("Raw rate in Hz"); |
| 2045 | graphMB->GetYaxis()->SetTitle("Event rate in Hz"); |
| 2046 | } |
| 2047 | } |
| 2048 | } |
git://git.uio.no / u / mrichter / AliRoot.git / blame