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0c6af5c9 | 1 | /************************************************************************** |
2 | * Copyright(c) 1998-2003, ALICE Experiment at CERN, All rights reserved. * | |
3 | * * | |
4 | * Author: The ALICE Off-line Project. * | |
5 | * Contributors are mentioned in the code where appropriate. * | |
6 | * * | |
7 | * Permission to use, copy, modify and distribute this software and its * | |
8 | * documentation strictly for non-commercial purposes is hereby granted * | |
9 | * without fee, provided that the above copyright notice appears in all * | |
10 | * copies and that both the copyright notice and this permission notice * | |
11 | * appear in the supporting documentation. The authors make no claims * | |
12 | * about the suitability of this software for any purpose. It is * | |
13 | * provided "as is" without express or implied warranty. * | |
14 | **************************************************************************/ | |
d531b7a1 | 15 | #include "AliITSVertexerZ.h" |
0c6af5c9 | 16 | #include<TBranch.h> |
7299b7a8 | 17 | #include<TClonesArray.h> |
0c6af5c9 | 18 | #include<TH1.h> |
d531b7a1 | 19 | #include <TString.h> |
0c6af5c9 | 20 | #include<TTree.h> |
308c2f7c | 21 | #include "AliESDVertex.h" |
32e63e47 | 22 | #include "AliITSgeomTGeo.h" |
d531b7a1 | 23 | #include "AliITSRecPoint.h" |
b21c1af0 | 24 | #include "AliITSRecPointContainer.h" |
7299b7a8 | 25 | #include "AliITSZPoint.h" |
0c6af5c9 | 26 | |
27 | ///////////////////////////////////////////////////////////////// | |
28 | // this class implements a fast method to determine | |
29 | // the Z coordinate of the primary vertex | |
30 | // for p-p collisions it seems to give comparable or better results | |
31 | // with respect to what obtained with AliITSVertexerPPZ | |
32 | // It can be used successfully with Pb-Pb collisions | |
33 | //////////////////////////////////////////////////////////////// | |
34 | ||
35 | ClassImp(AliITSVertexerZ) | |
36 | ||
37 | ||
38 | ||
39 | //______________________________________________________________________ | |
8221b41b | 40 | AliITSVertexerZ::AliITSVertexerZ():AliITSVertexer(), |
41 | fFirstL1(0), | |
42 | fLastL1(0), | |
43 | fFirstL2(0), | |
44 | fLastL2(0), | |
45 | fDiffPhiMax(0), | |
8221b41b | 46 | fZFound(0), |
47 | fZsig(0.), | |
48 | fZCombc(0), | |
8221b41b | 49 | fLowLim(0.), |
50 | fHighLim(0.), | |
51 | fStepCoarse(0), | |
8221b41b | 52 | fTolerance(0.), |
7299b7a8 | 53 | fMaxIter(0), |
1e6316d8 | 54 | fWindowWidth(0), |
55 | fSearchForPileup(kTRUE) | |
56 | { | |
0c6af5c9 | 57 | // Default constructor |
7299b7a8 | 58 | SetDiffPhiMax(); |
59 | SetFirstLayerModules(); | |
60 | SetSecondLayerModules(); | |
61 | SetLowLimit(); | |
62 | SetHighLimit(); | |
63 | SetBinWidthCoarse(); | |
64 | SetTolerance(); | |
65 | SetPPsetting(); | |
6fd990e3 | 66 | ConfigIterations(); |
7299b7a8 | 67 | SetWindowWidth(); |
0c6af5c9 | 68 | } |
69 | ||
70 | //______________________________________________________________________ | |
308c2f7c | 71 | AliITSVertexerZ::AliITSVertexerZ(Float_t x0, Float_t y0):AliITSVertexer(), |
8221b41b | 72 | fFirstL1(0), |
73 | fLastL1(0), | |
74 | fFirstL2(0), | |
75 | fLastL2(0), | |
76 | fDiffPhiMax(0), | |
8221b41b | 77 | fZFound(0), |
78 | fZsig(0.), | |
79 | fZCombc(0), | |
8221b41b | 80 | fLowLim(0.), |
81 | fHighLim(0.), | |
82 | fStepCoarse(0), | |
8221b41b | 83 | fTolerance(0.), |
7299b7a8 | 84 | fMaxIter(0), |
1e6316d8 | 85 | fWindowWidth(0), |
86 | fSearchForPileup(kTRUE) | |
87 | { | |
0c6af5c9 | 88 | // Standard Constructor |
89 | SetDiffPhiMax(); | |
0c6af5c9 | 90 | SetFirstLayerModules(); |
91 | SetSecondLayerModules(); | |
0c6af5c9 | 92 | SetLowLimit(); |
93 | SetHighLimit(); | |
94 | SetBinWidthCoarse(); | |
0c6af5c9 | 95 | SetTolerance(); |
ecc64c3f | 96 | SetPPsetting(); |
6fd990e3 | 97 | ConfigIterations(); |
7299b7a8 | 98 | SetWindowWidth(); |
60b9526b | 99 | SetVtxStart((Double_t)x0,(Double_t)y0,0.); |
0c6af5c9 | 100 | |
101 | } | |
102 | ||
0c6af5c9 | 103 | //______________________________________________________________________ |
104 | AliITSVertexerZ::~AliITSVertexerZ() { | |
ecc64c3f | 105 | // Destructor |
106 | delete fZCombc; | |
0c6af5c9 | 107 | } |
108 | ||
6fd990e3 | 109 | //______________________________________________________________________ |
110 | void AliITSVertexerZ::ConfigIterations(Int_t noiter,Float_t *ptr){ | |
111 | // configure the iterative procedure to gain efficiency for | |
112 | // pp events with very low multiplicity | |
bf2e0ad4 | 113 | Float_t defaults[5]={0.02,0.05,0.1,0.2,0.3}; |
6fd990e3 | 114 | fMaxIter=noiter; |
115 | if(noiter>5){ | |
116 | Error("ConfigIterations","Maximum number of iterations is 5\n"); | |
117 | fMaxIter=5; | |
118 | } | |
119 | for(Int_t j=0;j<5;j++)fPhiDiffIter[j]=defaults[j]; | |
120 | if(ptr)for(Int_t j=0;j<fMaxIter;j++)fPhiDiffIter[j]=ptr[j]; | |
121 | } | |
122 | ||
debb3dde | 123 | //______________________________________________________________________ |
8c32ba44 | 124 | Int_t AliITSVertexerZ::GetPeakRegion(TH1F*h, Int_t &binmin, Int_t &binmax){ |
debb3dde | 125 | // Finds a region around a peak in the Z histogram |
126 | // Case of 2 peaks is treated | |
127 | Int_t imax=h->GetNbinsX(); | |
128 | Float_t maxval=0; | |
129 | Int_t bi1=h->GetMaximumBin(); | |
130 | Int_t bi2=0; | |
131 | for(Int_t i=imax;i>=1;i--){ | |
132 | if(h->GetBinContent(i)>maxval){ | |
133 | maxval=h->GetBinContent(i); | |
134 | bi2=i; | |
135 | } | |
136 | } | |
137 | Int_t npeaks=0; | |
138 | ||
139 | if(bi1==bi2){ | |
140 | binmin=bi1-3; | |
141 | binmax=bi1+3; | |
142 | npeaks=1; | |
143 | }else{ | |
144 | TH1F *copy = new TH1F(*h); | |
145 | copy->SetBinContent(bi1,0.); | |
146 | copy->SetBinContent(bi2,0.); | |
147 | Int_t l1=TMath::Max(bi1-3,1); | |
148 | Int_t l2=TMath::Min(bi1+3,h->GetNbinsX()); | |
149 | Float_t cont1=copy->Integral(l1,l2); | |
150 | Int_t ll1=TMath::Max(bi2-3,1); | |
151 | Int_t ll2=TMath::Min(bi2+3,h->GetNbinsX()); | |
152 | Float_t cont2=copy->Integral(ll1,ll2); | |
153 | if(cont1>cont2){ | |
154 | binmin=l1; | |
155 | binmax=l2; | |
156 | npeaks=1; | |
157 | } | |
158 | if(cont2>cont1){ | |
159 | binmin=ll1; | |
160 | binmax=ll2; | |
161 | npeaks=1; | |
162 | } | |
163 | if(cont1==cont2){ | |
164 | binmin=l1; | |
165 | binmax=ll2; | |
166 | if(bi2-bi1==1) npeaks=1; | |
167 | else npeaks=2; | |
168 | } | |
169 | delete copy; | |
170 | } | |
171 | return npeaks; | |
172 | } | |
0c6af5c9 | 173 | //______________________________________________________________________ |
308c2f7c | 174 | AliESDVertex* AliITSVertexerZ::FindVertexForCurrentEvent(TTree *itsClusterTree){ |
d681bb2d | 175 | // Defines the AliESDVertex for the current event |
308c2f7c | 176 | VertexZFinder(itsClusterTree); |
6fd990e3 | 177 | Int_t ntrackl=0; |
178 | for(Int_t iteraz=0;iteraz<fMaxIter;iteraz++){ | |
179 | if(fCurrentVertex) ntrackl=fCurrentVertex->GetNContributors(); | |
180 | if(!fCurrentVertex || ntrackl==0 || ntrackl==-1){ | |
181 | Float_t diffPhiMaxOrig=fDiffPhiMax; | |
182 | fDiffPhiMax=GetPhiMaxIter(iteraz); | |
308c2f7c | 183 | VertexZFinder(itsClusterTree); |
6fd990e3 | 184 | fDiffPhiMax=diffPhiMaxOrig; |
185 | } | |
186 | } | |
1ff24d0a | 187 | if(fComputeMultiplicity) FindMultiplicity(itsClusterTree); |
6fd990e3 | 188 | return fCurrentVertex; |
189 | } | |
190 | ||
191 | //______________________________________________________________________ | |
308c2f7c | 192 | void AliITSVertexerZ::VertexZFinder(TTree *itsClusterTree){ |
6fd990e3 | 193 | // Defines the AliESDVertex for the current event |
0c6af5c9 | 194 | fCurrentVertex = 0; |
5279841d | 195 | Double_t startPos[3]={GetNominalPos()[0],GetNominalPos()[1],GetNominalPos()[2]}; |
196 | Double_t startCov[6]={GetNominalCov()[0],GetNominalCov()[1],GetNominalCov()[2], | |
197 | GetNominalCov()[3],GetNominalCov()[4],GetNominalCov()[5]}; | |
6b4d9537 | 198 | ResetVertex(); |
0c6af5c9 | 199 | TClonesArray *itsRec = 0; |
27167524 | 200 | // lc1 and gc1 are local and global coordinates for layer 1 |
54f95b99 | 201 | Float_t gc1[3]={0.,0.,0.}; // ; for(Int_t ii=0; ii<3; ii++) gc1[ii]=0.; |
ecc64c3f | 202 | // lc2 and gc2 are local and global coordinates for layer 2 |
54f95b99 | 203 | Float_t gc2[3]={0.,0.,0.}; //; for(Int_t ii=0; ii<3; ii++) gc2[ii]=0.; |
b21c1af0 | 204 | AliITSRecPointContainer* rpcont=AliITSRecPointContainer::Instance(); |
3457dd2d | 205 | rpcont->FetchClusters(0,itsClusterTree); |
b21c1af0 | 206 | if(!rpcont->IsSPDActive()){ |
fea0ad94 | 207 | AliWarning("Null pointer for RecPoints branch, vertex not calculated"); |
208 | ResetHistograms(); | |
5279841d | 209 | fCurrentVertex = new AliESDVertex(startPos,startCov,99999.,-2); |
fea0ad94 | 210 | return; |
211 | } | |
0c6af5c9 | 212 | |
0c6af5c9 | 213 | Int_t nrpL1 = 0; |
214 | Int_t nrpL2 = 0; | |
1cc75a0b | 215 | nrpL1=rpcont->GetNClustersInLayerFast(1); |
216 | nrpL2=rpcont->GetNClustersInLayerFast(2); | |
27167524 | 217 | |
0c6af5c9 | 218 | if(nrpL1 == 0 || nrpL2 == 0){ |
fea0ad94 | 219 | AliDebug(1,Form("No RecPoints in at least one SPD layer (%d %d)",nrpL1,nrpL2)); |
0c6af5c9 | 220 | ResetHistograms(); |
5279841d | 221 | fCurrentVertex = new AliESDVertex(startPos,startCov,99999.,-2); |
6fd990e3 | 222 | return; |
0c6af5c9 | 223 | } |
ecc64c3f | 224 | // Force a coarse bin size of 200 microns if the number of clusters on layer 2 |
225 | // is low | |
226 | if(nrpL2<fPPsetting[0])SetBinWidthCoarse(fPPsetting[1]); | |
ecc64c3f | 227 | // By default nbincoarse=(10+10)/0.01=2000 |
228 | Int_t nbincoarse = static_cast<Int_t>((fHighLim-fLowLim)/fStepCoarse); | |
ecc64c3f | 229 | if(fZCombc)delete fZCombc; |
230 | fZCombc = new TH1F("fZCombc","Z",nbincoarse,fLowLim,fLowLim+nbincoarse*fStepCoarse); | |
7299b7a8 | 231 | |
27167524 | 232 | /* Test the ffect of mutiple scatternig on error. Negligible |
7299b7a8 | 233 | // Multiple scattering |
234 | Float_t beta=1.,pmed=0.875; //pmed=875 MeV (for tracks with dphi<0.01 rad) | |
235 | Float_t beta2=beta*beta; | |
236 | Float_t p2=pmed*pmed; | |
237 | Float_t rBP=3; //Beam Pipe radius = 3cm | |
238 | Float_t dBP=0.08/35.3; // 800 um of Be | |
239 | Float_t dL1=0.01; //approx. 1% of radiation length | |
240 | Float_t theta2BP=14.1*14.1/(beta2*p2*1e6)*TMath::Abs(dBP); | |
241 | Float_t theta2L1=14.1*14.1/(beta2*p2*1e6)*TMath::Abs(dL1); | |
242 | */ | |
54f95b99 | 243 | Int_t nEntriesMod[kNSPDMod]; |
244 | TClonesArray* recpArr[kNSPDMod]; | |
245 | for(Int_t modul=0; modul<kNSPDMod; ++modul) { | |
246 | if(!fUseModule[modul]) { | |
247 | nEntriesMod[modul]=0; | |
248 | recpArr[modul]=0; | |
249 | } else { | |
250 | recpArr[modul]=rpcont->UncheckedGetClusters(modul); | |
251 | nEntriesMod[modul]=recpArr[modul]->GetEntriesFast(); | |
252 | } | |
253 | } | |
254 | ||
27167524 | 255 | Int_t maxdim=TMath::Min(nrpL1*nrpL2,50000); // temporary; to limit the size in PbPb |
f5f6da22 | 256 | static TClonesArray points("AliITSZPoint",maxdim); |
7299b7a8 | 257 | Int_t nopoints =0; |
27167524 | 258 | for(Int_t modul1= fFirstL1; modul1<=fLastL1;modul1++){ // Loop on modules of layer 1 |
8c42830a | 259 | if(!fUseModule[modul1]) continue; |
27167524 | 260 | UShort_t ladder=int(modul1/4)+1; // ladders are numbered starting from 1 |
54f95b99 | 261 | TClonesArray *prpl1=recpArr[modul1]; //rpcont->UncheckedGetClusters(modul1); |
262 | Int_t nrecp1 = nEntriesMod[modul1]; //prpl1->GetEntries(); | |
27167524 | 263 | for(Int_t j1=0;j1<nrecp1;j1++){ |
54f95b99 | 264 | AliITSRecPoint *recp1 = (AliITSRecPoint*)prpl1->At(j1); |
265 | recp1->GetGlobalXYZ(gc1); | |
308c2f7c | 266 | gc1[0]-=GetNominalPos()[0]; // Possible beam offset in the bending plane |
267 | gc1[1]-=GetNominalPos()[1]; // " " | |
27167524 | 268 | Float_t phi1 = TMath::ATan2(gc1[1],gc1[0]); |
54f95b99 | 269 | if(phi1<0)phi1+=TMath::TwoPi(); |
27167524 | 270 | for(Int_t ladl2=0 ; ladl2<fLadOnLay2*2+1;ladl2++){ |
271 | for(Int_t k=0;k<4;k++){ | |
272 | Int_t ladmod=fLadders[ladder-1]+ladl2; | |
32e63e47 | 273 | if(ladmod>AliITSgeomTGeo::GetNLadders(2)) ladmod=ladmod-AliITSgeomTGeo::GetNLadders(2); |
274 | Int_t modul2=AliITSgeomTGeo::GetModuleIndex(2,ladmod,k+1); | |
e917bef4 | 275 | if(modul2<0)continue; |
8c42830a | 276 | if(!fUseModule[modul2]) continue; |
54f95b99 | 277 | itsRec=recpArr[modul2]; // rpcont->UncheckedGetClusters(modul2); |
278 | Int_t nrecp2 = nEntriesMod[modul2]; // itsRec->GetEntries(); | |
27167524 | 279 | for(Int_t j2=0;j2<nrecp2;j2++){ |
54f95b99 | 280 | AliITSRecPoint *recp2 = (AliITSRecPoint*)itsRec->At(j2); |
281 | recp2->GetGlobalXYZ(gc2); | |
308c2f7c | 282 | gc2[0]-=GetNominalPos()[0]; |
283 | gc2[1]-=GetNominalPos()[1]; | |
27167524 | 284 | Float_t phi2 = TMath::ATan2(gc2[1],gc2[0]); |
54f95b99 | 285 | if(phi2<0)phi2+=TMath::TwoPi(); |
27167524 | 286 | |
287 | Float_t diff = TMath::Abs(phi2-phi1); | |
54f95b99 | 288 | if(diff>TMath::Pi())diff=TMath::TwoPi()-diff; |
27167524 | 289 | if(diff<fDiffPhiMax){ |
54f95b99 | 290 | Float_t r1=TMath::Sqrt(gc1[0]*gc1[0]+gc1[1]*gc1[1]); |
291 | Float_t zc1=gc1[2]; | |
292 | Float_t erz1=recp1->GetSigmaZ2(); | |
293 | Float_t r2=TMath::Sqrt(gc2[0]*gc2[0]+gc2[1]*gc2[1]); | |
294 | Float_t zc2=gc2[2]; | |
295 | Float_t erz2=recp2->GetSigmaZ2(); | |
27167524 | 296 | // Float_t tgth=(zc2[j]-zc1[i])/(r2-r1); // slope (used for multiple scattering) |
297 | Float_t zr0=(r2*zc1-r1*zc2)/(r2-r1); //Z @ null radius | |
54f95b99 | 298 | Float_t ezr0q=(r2*r2*erz1+r1*r1*erz2)/((r2-r1)*(r2-r1)); //error on Z @ null radius |
299 | /* | |
300 | // Multiple scattering | |
301 | ezr0q+=r1*r1*(1+tgth*tgth)*theta2L1/2; // multiple scattering in layer 1 | |
302 | ezr0q+=rBP*rBP*(1+tgth*tgth)*theta2BP/2; // multiple scattering in beam pipe | |
303 | */ | |
f5f6da22 | 304 | if(nopoints<maxdim) new(points[nopoints++])AliITSZPoint(zr0,ezr0q); |
27167524 | 305 | fZCombc->Fill(zr0); |
306 | } | |
307 | } | |
27167524 | 308 | } |
0c6af5c9 | 309 | } |
310 | } | |
311 | } | |
7299b7a8 | 312 | |
f5f6da22 | 313 | points.Sort(); |
7299b7a8 | 314 | |
6fd990e3 | 315 | Double_t contents = fZCombc->GetEntries()- fZCombc->GetBinContent(0)-fZCombc->GetBinContent(nbincoarse+1); |
316 | if(contents<1.){ | |
317 | // Warning("FindVertexForCurrentEvent","Insufficient number of rec. points\n"); | |
0c6af5c9 | 318 | ResetHistograms(); |
5279841d | 319 | fCurrentVertex = new AliESDVertex(startPos,startCov,99999.,-1); |
f5f6da22 | 320 | points.Clear(); |
6fd990e3 | 321 | return; |
0c6af5c9 | 322 | } |
ecc64c3f | 323 | |
324 | TH1F *hc = fZCombc; | |
ecc64c3f | 325 | |
ecc64c3f | 326 | |
8c42830a | 327 | if(hc->GetBinContent(hc->GetMaximumBin())<3)hc->Rebin(4); |
debb3dde | 328 | Int_t binmin,binmax; |
329 | Int_t nPeaks=GetPeakRegion(hc,binmin,binmax); | |
4be14da5 | 330 | if(nPeaks==2)AliDebug(2,"2 peaks found"); |
7299b7a8 | 331 | Float_t zm =0.; |
332 | Float_t ezm =0.; | |
333 | Float_t lim1 = hc->GetBinLowEdge(binmin); | |
334 | Float_t lim2 = hc->GetBinLowEdge(binmax)+hc->GetBinWidth(binmax); | |
4be14da5 | 335 | Float_t widthSR=lim2-lim1; |
7299b7a8 | 336 | |
337 | if(nPeaks ==1 && (lim2-lim1)<fWindowWidth){ | |
338 | Float_t c=(lim1+lim2)/2.; | |
339 | lim1=c-fWindowWidth/2.; | |
340 | lim2=c+fWindowWidth/2.; | |
ecc64c3f | 341 | } |
7299b7a8 | 342 | Int_t niter = 0, ncontr=0; |
343 | do { | |
344 | // symmetrization | |
345 | if(zm !=0.){ | |
346 | Float_t semilarg=TMath::Min((lim2-zm),(zm-lim1)); | |
347 | lim1=zm - semilarg; | |
348 | lim2=zm + semilarg; | |
0c6af5c9 | 349 | } |
7299b7a8 | 350 | |
351 | zm=0.; | |
352 | ezm=0.; | |
353 | ncontr=0; | |
896141ab | 354 | for(Int_t i =0; i<points.GetEntriesFast(); i++){ |
f5f6da22 | 355 | AliITSZPoint* p=(AliITSZPoint*)points.UncheckedAt(i); |
7299b7a8 | 356 | if(p->GetZ()>lim1 && p->GetZ()<lim2){ |
357 | Float_t deno = p->GetErrZ(); | |
358 | zm+=p->GetZ()/deno; | |
359 | ezm+=1./deno; | |
360 | ncontr++; | |
ecc64c3f | 361 | } |
362 | } | |
2b8b4286 | 363 | if(ezm>0) { |
364 | zm/=ezm; | |
365 | ezm=TMath::Sqrt(1./ezm); | |
366 | } | |
7299b7a8 | 367 | niter++; |
368 | } while(niter<10 && TMath::Abs((zm-lim1)-(lim2-zm))>fTolerance); | |
4be14da5 | 369 | if(nPeaks==2) ezm=widthSR; |
5279841d | 370 | Double_t position[3]={GetNominalPos()[0],GetNominalPos()[1],zm}; |
371 | Double_t covmatrix[6]={GetNominalCov()[0],0.,GetNominalCov()[2],0.,0.,ezm}; | |
372 | fCurrentVertex = new AliESDVertex(position,covmatrix,99999.,ncontr); | |
12e3ead8 | 373 | fCurrentVertex->SetTitle("vertexer: Z"); |
bf2e0ad4 | 374 | fCurrentVertex->SetDispersion(fDiffPhiMax); |
6b4d9537 | 375 | fNoVertices=1; |
f5f6da22 | 376 | points.Clear(); |
1e6316d8 | 377 | if(fSearchForPileup && ncontr>fMinTrackletsForPilup){ |
8c32ba44 | 378 | Float_t secPeakPos; |
379 | Int_t ncontr2=FindSecondPeak(fZCombc,binmin,binmax,secPeakPos); | |
380 | if(ncontr2>=fMinTrackletsForPilup){ | |
381 | fIsPileup=kTRUE; | |
6b4d9537 | 382 | fNoVertices=2; |
8c32ba44 | 383 | fZpuv=secPeakPos; |
384 | fNTrpuv=ncontr2; | |
6b4d9537 | 385 | AliESDVertex secondVert(secPeakPos,0.1,ncontr2); |
386 | fVertArray = new AliESDVertex[2]; | |
387 | fVertArray[0]=(*fCurrentVertex); | |
388 | fVertArray[1]=secondVert; | |
8c32ba44 | 389 | } |
2c3a7cd0 | 390 | } |
6b4d9537 | 391 | if(fNoVertices==1){ |
392 | fVertArray = new AliESDVertex[1]; | |
393 | fVertArray[0]=(*fCurrentVertex); | |
394 | } | |
395 | ||
0c6af5c9 | 396 | ResetHistograms(); |
6fd990e3 | 397 | return; |
0c6af5c9 | 398 | } |
399 | ||
8c32ba44 | 400 | //_____________________________________________________________________ |
401 | Int_t AliITSVertexerZ::FindSecondPeak(TH1F* h, Int_t binmin,Int_t binmax, Float_t& secPeakPos){ | |
402 | for(Int_t i=binmin-1;i<=binmax+1;i++){ | |
403 | h->SetBinContent(i,0.); | |
404 | } | |
405 | Int_t secPeakBin=h->GetMaximumBin(); | |
406 | secPeakPos=h->GetBinCenter(secPeakBin); | |
70a3283c | 407 | Int_t secPeakCont=(Int_t)h->GetBinContent(secPeakBin); |
408 | secPeakCont+=(Int_t)h->GetBinContent(secPeakBin-1); | |
409 | secPeakCont+=(Int_t)h->GetBinContent(secPeakBin+1); | |
410 | secPeakCont+=(Int_t)h->GetBinContent(secPeakBin-2); | |
411 | secPeakCont+=(Int_t)h->GetBinContent(secPeakBin+2); | |
8c32ba44 | 412 | return secPeakCont; |
413 | } | |
414 | ||
0c6af5c9 | 415 | //_____________________________________________________________________ |
416 | void AliITSVertexerZ::ResetHistograms(){ | |
417 | // delete TH1 data members | |
418 | if(fZCombc)delete fZCombc; | |
0c6af5c9 | 419 | fZCombc = 0; |
0c6af5c9 | 420 | } |
421 | ||
0c6af5c9 | 422 | //________________________________________________________ |
423 | void AliITSVertexerZ::PrintStatus() const { | |
424 | // Print current status | |
425 | cout <<"=======================================================\n"; | |
426 | cout <<" First layer first and last modules: "<<fFirstL1<<", "; | |
427 | cout <<fLastL1<<endl; | |
428 | cout <<" Second layer first and last modules: "<<fFirstL2<<", "; | |
429 | cout <<fLastL2<<endl; | |
430 | cout <<" Max Phi difference: "<<fDiffPhiMax<<endl; | |
431 | cout <<"Limits for Z histograms: "<<fLowLim<<"; "<<fHighLim<<endl; | |
7299b7a8 | 432 | cout <<"Bin sizes for coarse z histos "<<fStepCoarse<<endl; |
0c6af5c9 | 433 | cout <<" Current Z "<<fZFound<<"; Z sig "<<fZsig<<endl; |
ecc64c3f | 434 | if(fZCombc){ |
435 | cout<<"fZCombc exists - entries="<<fZCombc->GetEntries()<<endl; | |
436 | } | |
437 | else{ | |
438 | cout<<"fZCombc does not exist\n"; | |
439 | } | |
0c6af5c9 | 440 | |
441 | cout <<"=======================================================\n"; | |
442 | } | |
443 |