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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"
46 #include "AliPoints.h"
51 //extern "C" void gdaxis_(float &x0, float &y0, float &z0, float &axsiz);
54 //______________________________________________________________________
55 AliEMCALv3::AliEMCALv3():AliEMCALv1(){
60 //______________________________________________________________________
61 AliEMCALv3::AliEMCALv3(const char *name, const char *title): AliEMCALv1(name,title) {
64 fHits= new TClonesArray("AliEMCALHitv1",2000);
65 gAlice->GetMCApp()->AddHitList(fHits);
68 fIshunt = 2; // All hits are associated with particles entering the calorimeter
71 fGeometry = GetGeometry();
76 fHDe = new TH1F("fHDe","De in EMCAL", 1000, 0., 1.);
77 fHNhits = new TH1F("fHNhits","#hits in EMCAL", 1001, -0.5, 1000.5);
79 fHDeDz = new TH1F("fHDeDz","Longitudinal shower profile", 6*nbin, 0.0, 0.16*nbin);
81 fHistograms->Add(fHDe);
82 fHistograms->Add(fHNhits);
83 fHistograms->Add(fHDeDz);
88 //______________________________________________________________________
89 AliEMCALv3::AliEMCALv3(const AliEMCALv3 & emcal):AliEMCALv1(emcal)
91 fGeometry = emcal.fGeometry;
93 fHNhits = emcal.fHNhits;
94 fHDeDz = emcal.fHDeDz;
98 //______________________________________________________________________
99 AliEMCALv3::~AliEMCALv3(){
109 //______________________________________________________________________
110 void AliEMCALv3::AddHit(Int_t shunt, Int_t primary, Int_t tracknumber, Int_t iparent, Float_t ienergy,
111 Int_t id, Float_t * hits,Float_t * p){
112 // Add a hit to the hit list.
113 // An EMCAL hit is the sum of all hits in a tower section
114 // originating from the same entering particle
115 static Int_t hitCounter;
116 static AliEMCALHitv1 *newHit, *curHit;
121 newHit = new AliEMCALHitv1(shunt, primary, tracknumber, iparent, ienergy, id, hits, p);
122 for ( hitCounter = fNhits-1; hitCounter >= 0 && !deja; hitCounter-- ) {
123 curHit = (AliEMCALHitv1*) (*fHits)[hitCounter];
124 // We add hits with the same tracknumber, while GEANT treats
125 // primaries succesively
126 if(curHit->GetPrimary() != primary)
128 if( *curHit == *newHit ) {
129 *curHit = *curHit + *newHit;
131 // break; // 30-aug-04 by PAI
133 } // end for hitCounter
136 new((*fHits)[fNhits]) AliEMCALHitv1(*newHit);
139 // printf(" fNhits %i \n", fNhits);
142 //______________________________________________________________________
143 void AliEMCALv3::StepManager(void){
144 // Accumulates hits as long as the track stays in a tower
146 // position wrt MRS and energy deposited
147 static Float_t xyzte[5]={0.,0.,0.,0.,0.};// position wrt MRS, time and energy deposited
148 static Float_t pmom[4]={0.,0.,0.,0.};
149 static TLorentzVector pos; // Lorentz vector of the track current position.
150 static TLorentzVector mom; // Lorentz vector of the track current momentum.
151 static Float_t ienergy = 0;
152 static TString curVolName;
153 static int supModuleNumber, moduleNumber, yNumber, xNumber, absid;
154 static int keyGeom=0;
155 static char *vn = "SX"; // 15-mar-05
156 static int nSMOP[7]={1,3,5,7,9,11}; // 30-mar-05
157 static int nSMON[7]={2,4,6,8,10,12};
158 static Float_t depositedEnergy=0.0;
162 if(gMC->VolId("PBMO")==0 || gMC->VolId("WSUC")==1) {
163 vn = "SCMX"; // old TRD2(TRD1) or WSUC
166 printf("AliEMCALv3::StepManager(): keyGeom %i : Sensetive volume %s \n",
168 if(gMC->VolId("WSUC")==1) printf(" WSUC - cosmic ray stand geometry \n");
170 Int_t tracknumber = gAlice->GetMCApp()->GetCurrentTrackNumber();
172 curVolName = gMC->CurrentVolName();
173 if(curVolName.Contains(vn)) { // We are in a scintillator layer
174 // printf(" keyGeom %i : Sensetive volume %s (%s) \n", keyGeom, curVolName.Data(), vn);
176 if( ((depositedEnergy = gMC->Edep()) > 0.) && (gMC->TrackTime() < fTimeCut)){// Track is inside a scintillator and deposits some energy
177 // Info("StepManager "," entry %i DE %f",++ientry, depositedEnergy); // for testing
179 fCurPrimary=gAlice->GetMCApp()->GetPrimary(tracknumber);
181 if (fCurParent==-1 || tracknumber != fCurTrack) {
183 Int_t parent=tracknumber;
184 if (fCurParent != -1) {
185 while (parent != fCurParent && parent != -1) {
186 TParticle *part=gAlice->GetMCApp()->Particle(parent);
187 parent=part->GetFirstMother();
190 if (fCurParent==-1 || parent==-1) {
191 Int_t parent=tracknumber;
192 TParticle *part=gAlice->GetMCApp()->Particle(parent);
193 while (parent != -1 && fGeometry->IsInEMCAL(part->Vx(),part->Vy(),part->Vz())) {
194 parent=part->GetFirstMother();
196 part=gAlice->GetMCApp()->Particle(parent);
200 Error("StepManager","Cannot find parent");
202 TParticle *part=gAlice->GetMCApp()->Particle(fCurParent);
203 ienergy = part->Energy();
205 while (parent != -1) {
206 part=gAlice->GetMCApp()->Particle(parent);
207 part->SetBit(kKeepBit);
208 parent=part->GetFirstMother();
211 fCurTrack=tracknumber;
213 gMC->TrackPosition(pos);
217 xyzte[3] = gMC->TrackTime() ;
219 gMC->TrackMomentum(mom);
225 // if(ientry%200 > 0) return; // testing
226 supModuleNumber = moduleNumber = yNumber = xNumber = absid = 0;
227 if(keyGeom >= 1) { // old style
228 gMC->CurrentVolOffID(4, supModuleNumber);
229 gMC->CurrentVolOffID(3, moduleNumber);
230 gMC->CurrentVolOffID(1, yNumber);
231 gMC->CurrentVolOffID(0, xNumber); // really x number now
232 if(strcmp(gMC->CurrentVolOffName(4),"SM10")==0) supModuleNumber += 10; // 13-oct-05
234 gMC->CurrentVolOffID(5, supModuleNumber);
235 gMC->CurrentVolOffID(4, moduleNumber);
236 gMC->CurrentVolOffID(1, yNumber);
237 gMC->CurrentVolOffID(0, xNumber);
238 if (strcmp(gMC->CurrentVolOffName(5),"SMOP")==0) supModuleNumber = nSMOP[supModuleNumber-1];
239 else if(strcmp(gMC->CurrentVolOffName(5),"SMON")==0) supModuleNumber = nSMON[supModuleNumber-1];
240 else assert(0); // something wrong
242 absid = fGeometry->GetAbsCellId(supModuleNumber, moduleNumber, yNumber, xNumber);
244 if (absid == -1) Fatal("StepManager()", "Wrong id ") ;
246 Float_t lightYield = depositedEnergy ;
247 // Apply Birk's law (copied from G3BIRK)
249 if (gMC->TrackCharge()!=0) { // Check
250 Float_t BirkC1_mod = 0;
251 if (fBirkC0==1){ // Apply correction for higher charge states
252 if (TMath::Abs(gMC->TrackCharge())>=2) BirkC1_mod=fBirkC1*7.2/12.6;
253 else BirkC1_mod=fBirkC1;
257 if (gMC->TrackStep()>0) dedxcm=1000.*gMC->Edep()/gMC->TrackStep();
259 lightYield=lightYield/(1.+BirkC1_mod*dedxcm+fBirkC2*dedxcm*dedxcm);
262 xyzte[4] = lightYield; // 15-dec-04
263 Float_t xd[5]; // see Gmtod
264 gMC->Gmtod(xyzte, xd, 1);
267 // printf(" x %7.2f y %7.2f z %7.2f de %f\n", xd[0], xd[1], xd[2], xd[4]);
270 printf("#sm %2i #m %3i #x %1i #z %1i -> absid %i : xyzte[4] = %f\n",
271 supModuleNumber,moduleNumber,yNumber,xNumber,absid, xd[4]);
273 AddHit(fIshunt, fCurPrimary,tracknumber, fCurParent, ienergy, absid, xd, pmom);
274 } // there is deposited energy
278 void AliEMCALv3::FinishEvent()
281 fHNhits->Fill(double(fHits->GetEntries()));
282 de = GetDepositEnergy(0);
283 if(fHDe) fHDe->Fill(de);
286 Double_t AliEMCALv3::GetDepositEnergy(int print)
287 { // 23-mar-05 - for testing
288 // cout<<"AliEMCALv3::GetDepositEnergy() : fHits "<<fHits<<endl;
289 if(fHits == 0) return 0.;
290 static AliEMCALHitv1 *hit=0;
291 static Double_t de=0., deHit=0., zhl=0.0, zShift = 0.16*77;
292 for(int ih=0; ih<fHits->GetEntries(); ih++) {
293 hit = (AliEMCALHitv1*)fHits->UncheckedAt(ih);
294 deHit = (double)hit->GetEnergy();
295 zhl = (double)hit->Z() + zShift;
296 if(zhl>2.*zShift) zhl = 2*zShift - 0.002;
298 if(fHDeDz) fHDeDz->Fill(zhl, deHit);
301 printf(" #hits %i de %f \n", fHits->GetEntries(), de);
303 printf(" #primary particles %i\n", gAlice->GetHeader()->GetNprimary());
309 void AliEMCALv3::Browse(TBrowser* b)