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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"
38 // --- Standard library ---
40 // --- AliRoot header files ---
41 #include "AliEMCALGeometry.h"
43 #include "AliHeader.h"
45 #include "AliPoints.h"
50 //extern "C" void gdaxis_(float &x0, float &y0, float &z0, float &axsiz);
53 //______________________________________________________________________
54 AliEMCALv3::AliEMCALv3():AliEMCALv1(){
59 //______________________________________________________________________
60 AliEMCALv3::AliEMCALv3(const char *name, const char *title): AliEMCALv1(name,title) {
63 fHits= new TClonesArray("AliEMCALHitv1",2000);
64 gAlice->GetMCApp()->AddHitList(fHits);
67 fIshunt = 2; // All hits are associated with particles entering the calorimeter
70 fGeometry = GetGeometry();
75 fHDe = new TH1F("fHDe","De in EMCAL", 1000, 0., 1.);
76 fHNhits = new TH1F("fHNhits","#hits in EMCAL", 1001, -0.5, 1000.5);
78 fHDeDz = new TH1F("fHDeDz","Longitudinal shower profile", 6*nbin, 0.0, 0.16*nbin);
80 fHistograms->Add(fHDe);
81 fHistograms->Add(fHNhits);
82 fHistograms->Add(fHDeDz);
87 //______________________________________________________________________
88 AliEMCALv3::AliEMCALv3(const AliEMCALv3 & emcal):AliEMCALv1(emcal)
90 fGeometry = emcal.fGeometry;
92 fHNhits = emcal.fHNhits;
93 fHDeDz = emcal.fHDeDz;
97 //______________________________________________________________________
98 AliEMCALv3::~AliEMCALv3(){
108 //______________________________________________________________________
109 void AliEMCALv3::AddHit(Int_t shunt, Int_t primary, Int_t tracknumber, Int_t iparent, Float_t ienergy,
110 Int_t id, Float_t * hits,Float_t * p){
111 // Add a hit to the hit list.
112 // An EMCAL hit is the sum of all hits in a tower section
113 // originating from the same entering particle
114 static Int_t hitCounter;
115 static AliEMCALHitv1 *newHit, *curHit;
120 newHit = new AliEMCALHitv1(shunt, primary, tracknumber, iparent, ienergy, id, hits, p);
121 for ( hitCounter = fNhits-1; hitCounter >= 0 && !deja; hitCounter-- ) {
122 curHit = (AliEMCALHitv1*) (*fHits)[hitCounter];
123 // We add hits with the same tracknumber, while GEANT treats
124 // primaries succesively
125 if(curHit->GetPrimary() != primary)
127 if( *curHit == *newHit ) {
128 *curHit = *curHit + *newHit;
130 // break; // 30-aug-04 by PAI
132 } // end for hitCounter
135 new((*fHits)[fNhits]) AliEMCALHitv1(*newHit);
138 // printf(" fNhits %i \n", fNhits);
141 //______________________________________________________________________
142 void AliEMCALv3::StepManager(void){
143 // Accumulates hits as long as the track stays in a tower
145 // position wrt MRS and energy deposited
146 static Float_t xyzte[5]={0.,0.,0.,0.,0.};// position wrt MRS, time and energy deposited
147 static Float_t pmom[4]={0.,0.,0.,0.};
148 static TLorentzVector pos; // Lorentz vector of the track current position.
149 static TLorentzVector mom; // Lorentz vector of the track current momentum.
150 static Float_t ienergy = 0;
151 static TString curVolName;
152 static int supModuleNumber, moduleNumber, yNumber, xNumber, absid;
153 static int keyGeom=0;
154 static char *vn = "SX"; // 15-mar-05
155 static int nSMOP[7]={1,3,5,7,9,11}; // 30-mar-05
156 static int nSMON[7]={2,4,6,8,10,12};
157 static Float_t depositedEnergy=0.0;
161 if(gMC->VolId("PBMO")==0 || gMC->VolId("WSUC")==1) {
162 vn = "SCMX"; // old TRD2(TRD1) or WSUC
165 printf("AliEMCALv3::StepManager(): keyGeom %i : Sensetive volume %s \n",
167 if(gMC->VolId("WSUC")==1) printf(" WSUC - cosmic ray stand geometry \n");
169 Int_t tracknumber = gAlice->GetMCApp()->GetCurrentTrackNumber();
171 curVolName = gMC->CurrentVolName();
172 if(curVolName.Contains(vn)) { // We are in a scintillator layer
173 // printf(" keyGeom %i : Sensetive volume %s (%s) \n", keyGeom, curVolName.Data(), vn);
175 if( ((depositedEnergy = gMC->Edep()) > 0.) && (gMC->TrackTime() < fTimeCut)){// Track is inside a scintillator and deposits some energy
176 // Info("StepManager "," entry %i DE %f",++ientry, depositedEnergy); // for testing
178 fCurPrimary=gAlice->GetMCApp()->GetPrimary(tracknumber);
180 if (fCurParent==-1 || tracknumber != fCurTrack) {
182 Int_t parent=tracknumber;
183 if (fCurParent != -1) {
184 while (parent != fCurParent && parent != -1) {
185 TParticle *part=gAlice->GetMCApp()->Particle(parent);
186 parent=part->GetFirstMother();
189 if (fCurParent==-1 || parent==-1) {
190 Int_t parent=tracknumber;
191 TParticle *part=gAlice->GetMCApp()->Particle(parent);
192 while (parent != -1 && fGeometry->IsInEMCAL(part->Vx(),part->Vy(),part->Vz())) {
193 parent=part->GetFirstMother();
195 part=gAlice->GetMCApp()->Particle(parent);
199 Error("StepManager","Cannot find parent");
201 TParticle *part=gAlice->GetMCApp()->Particle(fCurParent);
202 ienergy = part->Energy();
204 while (parent != -1) {
205 part=gAlice->GetMCApp()->Particle(parent);
206 part->SetBit(kKeepBit);
207 parent=part->GetFirstMother();
210 fCurTrack=tracknumber;
212 gMC->TrackPosition(pos);
216 xyzte[3] = gMC->TrackTime() ;
218 gMC->TrackMomentum(mom);
224 // if(ientry%200 > 0) return; // testing
225 supModuleNumber = moduleNumber = yNumber = xNumber = absid = 0;
226 if(keyGeom >= 1) { // old style
227 gMC->CurrentVolOffID(4, supModuleNumber);
228 gMC->CurrentVolOffID(3, moduleNumber);
229 gMC->CurrentVolOffID(1, yNumber);
230 gMC->CurrentVolOffID(0, xNumber); // really x number now
231 if(strcmp(gMC->CurrentVolOffName(4),"SM10")==0) supModuleNumber += 10; // 13-oct-05
233 gMC->CurrentVolOffID(5, supModuleNumber);
234 gMC->CurrentVolOffID(4, moduleNumber);
235 gMC->CurrentVolOffID(1, yNumber);
236 gMC->CurrentVolOffID(0, xNumber);
237 if (strcmp(gMC->CurrentVolOffName(5),"SMOP")==0) supModuleNumber = nSMOP[supModuleNumber-1];
238 else if(strcmp(gMC->CurrentVolOffName(5),"SMON")==0) supModuleNumber = nSMON[supModuleNumber-1];
239 else assert(0); // something wrong
241 absid = fGeometry->GetAbsCellId(supModuleNumber, moduleNumber, yNumber, xNumber);
243 if (absid == -1) Fatal("StepManager()", "Wrong id ") ;
245 Float_t lightYield = depositedEnergy ;
246 // Apply Birk's law (copied from G3BIRK)
248 if (gMC->TrackCharge()!=0) { // Check
249 Float_t BirkC1_mod = 0;
250 if (fBirkC0==1){ // Apply correction for higher charge states
251 if (TMath::Abs(gMC->TrackCharge())>=2) BirkC1_mod=fBirkC1*7.2/12.6;
252 else BirkC1_mod=fBirkC1;
256 if (gMC->TrackStep()>0) dedxcm=1000.*gMC->Edep()/gMC->TrackStep();
258 lightYield=lightYield/(1.+BirkC1_mod*dedxcm+fBirkC2*dedxcm*dedxcm);
261 xyzte[4] = lightYield; // 15-dec-04
262 Float_t xd[5]; // see Gmtod
263 gMC->Gmtod(xyzte, xd, 1);
266 // printf(" x %7.2f y %7.2f z %7.2f de %f\n", xd[0], xd[1], xd[2], xd[4]);
269 printf("#sm %2i #m %3i #x %1i #z %1i -> absid %i : xyzte[4] = %f\n",
270 supModuleNumber,moduleNumber,yNumber,xNumber,absid, xd[4]);
272 AddHit(fIshunt, fCurPrimary,tracknumber, fCurParent, ienergy, absid, xd, pmom);
273 } // there is deposited energy
277 void AliEMCALv3::FinishEvent()
280 fHNhits->Fill(double(fHits->GetEntries()));
281 de = GetDepositEnergy(0);
282 if(fHDe) fHDe->Fill(de);
285 Double_t AliEMCALv3::GetDepositEnergy(int print)
286 { // 23-mar-05 - for testing
287 // cout<<"AliEMCALv3::GetDepositEnergy() : fHits "<<fHits<<endl;
288 if(fHits == 0) return 0.;
289 static AliEMCALHitv1 *hit=0;
290 static Double_t de=0., deHit=0., zhl=0.0, zShift = 0.16*77;
291 for(int ih=0; ih<fHits->GetEntries(); ih++) {
292 hit = (AliEMCALHitv1*)fHits->UncheckedAt(ih);
293 deHit = (double)hit->GetEnergy();
294 zhl = (double)hit->Z() + zShift;
295 if(zhl>2.*zShift) zhl = 2*zShift - 0.002;
297 if(fHDeDz) fHDeDz->Fill(zhl, deHit);
300 printf(" #hits %i de %f \n", fHits->GetEntries(), de);
302 printf(" #primary particles %i\n", gAlice->GetHeader()->GetNprimary());
308 void AliEMCALv3::Browse(TBrowser* b)