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4 * Author: The ALICE Off-line Project. *
5 * Contributors are mentioned in the code where appropriate. *
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14 **************************************************************************/
18 //_________________________________________________________________________
19 //*-- Implementation version v2 of EMCAL Manager class; SHASHLYK version
20 //*-- An object of this class does not produce digits
21 //*-- It is the one to use if you do want to produce outputs in TREEH
23 //*-- Author : Aleksei Pavlinov (WSU)
25 // This Class not stores information on all particles prior to EMCAL entry - in order to facilitate analysis.
26 // This is done by setting fIShunt =2, and flagging all parents of particles entering the EMCAL.
28 // --- ROOT system ---
29 #include "AliEMCALv3.h"
30 #include "AliEMCALHitv1.h"
32 #include "TParticle.h"
33 #include "TVirtualMC.h"
39 // --- Standard library ---
41 // --- AliRoot header files ---
42 #include "AliEMCALGeometry.h"
44 #include "AliHeader.h"
47 #include "AliPoints.h"
52 //extern "C" void gdaxis_(float &x0, float &y0, float &z0, float &axsiz);
55 //______________________________________________________________________
56 AliEMCALv3::AliEMCALv3():AliEMCALv1(){
61 //______________________________________________________________________
62 AliEMCALv3::AliEMCALv3(const char *name, const char *title): AliEMCALv1(name,title) {
65 fHits= new TClonesArray("AliEMCALHitv1",2000);
66 gAlice->GetMCApp()->AddHitList(fHits);
69 fIshunt = 2; // All hits are associated with particles entering the calorimeter
72 fGeometry = GetGeometry();
77 fHDe = new TH1F("fHDe","De in EMCAL", 1000, 0., 1.);
78 fHNhits = new TH1F("fHNhits","#hits in EMCAL", 1001, -0.5, 1000.5);
80 fHDeDz = new TH1F("fHDeDz","Longitudinal shower profile", 6*nbin, 0.0, 0.16*nbin);
82 fHistograms->Add(fHDe);
83 fHistograms->Add(fHNhits);
84 fHistograms->Add(fHDeDz);
89 //______________________________________________________________________
90 AliEMCALv3::AliEMCALv3(const AliEMCALv3 & emcal):AliEMCALv1(emcal)
92 fGeometry = emcal.fGeometry;
94 fHNhits = emcal.fHNhits;
95 fHDeDz = emcal.fHDeDz;
99 //______________________________________________________________________
100 AliEMCALv3::~AliEMCALv3(){
110 //______________________________________________________________________
111 void AliEMCALv3::AddHit(Int_t shunt, Int_t primary, Int_t tracknumber, Int_t iparent, Float_t ienergy,
112 Int_t id, Float_t * hits,Float_t * p){
113 // Add a hit to the hit list.
114 // An EMCAL hit is the sum of all hits in a tower section
115 // originating from the same entering particle
116 static Int_t hitCounter;
117 static AliEMCALHitv1 *newHit, *curHit;
122 newHit = new AliEMCALHitv1(shunt, primary, tracknumber, iparent, ienergy, id, hits, p);
123 for ( hitCounter = fNhits-1; hitCounter >= 0 && !deja; hitCounter-- ) {
124 curHit = (AliEMCALHitv1*) (*fHits)[hitCounter];
125 // We add hits with the same tracknumber, while GEANT treats
126 // primaries succesively
127 if(curHit->GetPrimary() != primary)
129 if( *curHit == *newHit ) {
130 *curHit = *curHit + *newHit;
132 // break; // 30-aug-04 by PAI
134 } // end for hitCounter
137 new((*fHits)[fNhits]) AliEMCALHitv1(*newHit);
140 // printf(" fNhits %i \n", fNhits);
143 //______________________________________________________________________
144 void AliEMCALv3::StepManager(void){
145 // Accumulates hits as long as the track stays in a tower
147 // position wrt MRS and energy deposited
148 static Float_t xyzte[5]={0.,0.,0.,0.,0.};// position wrt MRS, time and energy deposited
149 static Float_t pmom[4]={0.,0.,0.,0.};
150 static TLorentzVector pos; // Lorentz vector of the track current position.
151 static TLorentzVector mom; // Lorentz vector of the track current momentum.
152 static Float_t ienergy = 0;
153 static TString curVolName;
154 static int supModuleNumber, moduleNumber, yNumber, xNumber, absid;
155 static int keyGeom=0;
156 static char *vn = "SX"; // 15-mar-05
157 static int nSMOP[7]={1,3,5,7,9,11}; // 30-mar-05
158 static int nSMON[7]={2,4,6,8,10,12};
159 static Float_t depositedEnergy=0.0;
163 if(gMC->VolId("PBMO")==0 || gMC->VolId("WSUC")==1) {
164 vn = "SCMX"; // old TRD2(TRD1) or WSUC
167 printf("AliEMCALv3::StepManager(): keyGeom %i : Sensetive volume %s \n",
169 if(gMC->VolId("WSUC")==1) printf(" WSUC - cosmic ray stand geometry \n");
171 Int_t tracknumber = gAlice->GetMCApp()->GetCurrentTrackNumber();
173 curVolName = gMC->CurrentVolName();
174 if(curVolName.Contains(vn)) { // We are in a scintillator layer
175 // printf(" keyGeom %i : Sensetive volume %s (%s) \n", keyGeom, curVolName.Data(), vn);
177 if( ((depositedEnergy = gMC->Edep()) > 0.) && (gMC->TrackTime() < fTimeCut)){// Track is inside a scintillator and deposits some energy
178 // Info("StepManager "," entry %i DE %f",++ientry, depositedEnergy); // for testing
180 fCurPrimary=gAlice->GetMCApp()->GetPrimary(tracknumber);
182 if (fCurParent==-1 || tracknumber != fCurTrack) {
184 Int_t parent=tracknumber;
185 if (fCurParent != -1) {
186 while (parent != fCurParent && parent != -1) {
187 TParticle *part=gAlice->GetMCApp()->Particle(parent);
188 parent=part->GetFirstMother();
191 if (fCurParent==-1 || parent==-1) {
192 Int_t parent=tracknumber;
193 TParticle *part=gAlice->GetMCApp()->Particle(parent);
194 while (parent != -1 && fGeometry->IsInEMCAL(part->Vx(),part->Vy(),part->Vz())) {
195 parent=part->GetFirstMother();
197 part=gAlice->GetMCApp()->Particle(parent);
201 Error("StepManager","Cannot find parent");
203 TParticle *part=gAlice->GetMCApp()->Particle(fCurParent);
204 ienergy = part->Energy();
206 while (parent != -1) {
207 part=gAlice->GetMCApp()->Particle(parent);
208 part->SetBit(kKeepBit);
209 parent=part->GetFirstMother();
212 fCurTrack=tracknumber;
214 gMC->TrackPosition(pos);
218 xyzte[3] = gMC->TrackTime() ;
220 gMC->TrackMomentum(mom);
226 // if(ientry%200 > 0) return; // testing
227 supModuleNumber = moduleNumber = yNumber = xNumber = absid = 0;
228 if(keyGeom >= 1) { // old style
229 gMC->CurrentVolOffID(4, supModuleNumber);
230 gMC->CurrentVolOffID(3, moduleNumber);
231 gMC->CurrentVolOffID(1, yNumber);
232 gMC->CurrentVolOffID(0, xNumber); // really x number now
233 if(strcmp(gMC->CurrentVolOffName(4),"SM10")==0) supModuleNumber += 10; // 13-oct-05
235 gMC->CurrentVolOffID(5, supModuleNumber);
236 gMC->CurrentVolOffID(4, moduleNumber);
237 gMC->CurrentVolOffID(1, yNumber);
238 gMC->CurrentVolOffID(0, xNumber);
239 if (strcmp(gMC->CurrentVolOffName(5),"SMOP")==0) supModuleNumber = nSMOP[supModuleNumber-1];
240 else if(strcmp(gMC->CurrentVolOffName(5),"SMON")==0) supModuleNumber = nSMON[supModuleNumber-1];
241 else assert(0); // something wrong
243 absid = fGeometry->GetAbsCellId(supModuleNumber, moduleNumber, yNumber, xNumber);
245 if (absid == -1) Fatal("StepManager()", "Wrong id ") ;
247 Float_t lightYield = depositedEnergy ;
248 // Apply Birk's law (copied from G3BIRK)
250 if (gMC->TrackCharge()!=0) { // Check
251 Float_t BirkC1_mod = 0;
252 if (fBirkC0==1){ // Apply correction for higher charge states
253 if (TMath::Abs(gMC->TrackCharge())>=2) BirkC1_mod=fBirkC1*7.2/12.6;
254 else BirkC1_mod=fBirkC1;
258 if (gMC->TrackStep()>0) dedxcm=1000.*gMC->Edep()/gMC->TrackStep();
260 lightYield=lightYield/(1.+BirkC1_mod*dedxcm+fBirkC2*dedxcm*dedxcm);
263 xyzte[4] = lightYield; // 15-dec-04
264 Float_t xd[5]; // see Gmtod
265 gMC->Gmtod(xyzte, xd, 1);
268 // printf(" x %7.2f y %7.2f z %7.2f de %f\n", xd[0], xd[1], xd[2], xd[4]);
271 printf("#sm %2i #m %3i #x %1i #z %1i -> absid %i : xyzte[4] = %f\n",
272 supModuleNumber,moduleNumber,yNumber,xNumber,absid, xd[4]);
274 AddHit(fIshunt, fCurPrimary,tracknumber, fCurParent, ienergy, absid, xd, pmom);
275 } // there is deposited energy
279 void AliEMCALv3::FinishEvent()
282 fHNhits->Fill(double(fHits->GetEntries()));
283 de = GetDepositEnergy(0);
284 if(fHDe) fHDe->Fill(de);
287 Double_t AliEMCALv3::GetDepositEnergy(int print)
288 { // 23-mar-05 - for testing
289 // cout<<"AliEMCALv3::GetDepositEnergy() : fHits "<<fHits<<endl;
290 if(fHits == 0) return 0.;
291 static AliEMCALHitv1 *hit=0;
292 static Double_t de=0., deHit=0., zhl=0.0, zShift = 0.16*77;
293 for(int ih=0; ih<fHits->GetEntries(); ih++) {
294 hit = (AliEMCALHitv1*)fHits->UncheckedAt(ih);
295 deHit = (double)hit->GetEnergy();
296 zhl = (double)hit->Z() + zShift;
297 if(zhl>2.*zShift) zhl = 2*zShift - 0.002;
299 if(fHDeDz) fHDeDz->Fill(zhl, deHit);
302 printf(" #hits %i de %f \n", fHits->GetEntries(), de);
304 printf(" #primary particles %i\n", gAlice->GetHeader()->GetNprimary());
310 void AliEMCALv3::Browse(TBrowser* b)