1 /**************************************************************************
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4 * Author: The ALICE Off-line Project. *
5 * Contributors are mentioned in the code where appropriate. *
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12 * about the suitability of this software for any purpose. It is *
13 * provided "as is" without express or implied warranty. *
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(){
98 //______________________________________________________________________
99 void AliEMCALv3::AddHit(Int_t shunt, Int_t primary, Int_t tracknumber, Int_t iparent, Float_t ienergy,
100 Int_t id, Float_t * hits,Float_t * p){
101 // Add a hit to the hit list.
102 // An EMCAL hit is the sum of all hits in a tower section
103 // originating from the same entering particle
104 static Int_t hitCounter;
105 static AliEMCALHitv1 *newHit, *curHit;
110 newHit = new AliEMCALHitv1(shunt, primary, tracknumber, iparent, ienergy, id, hits, p);
111 for ( hitCounter = fNhits-1; hitCounter >= 0 && !deja; hitCounter-- ) {
112 curHit = (AliEMCALHitv1*) (*fHits)[hitCounter];
113 // We add hits with the same tracknumber, while GEANT treats
114 // primaries succesively
115 if(curHit->GetPrimary() != primary)
117 if( *curHit == *newHit ) {
118 *curHit = *curHit + *newHit;
120 // break; // 30-aug-04 by PAI
122 } // end for hitCounter
125 new((*fHits)[fNhits]) AliEMCALHitv1(*newHit);
128 // printf(" fNhits %i \n", fNhits);
131 //______________________________________________________________________
132 void AliEMCALv3::StepManager(void){
133 // Accumulates hits as long as the track stays in a tower
135 // position wrt MRS and energy deposited
136 static Float_t xyzte[5]={0.,0.,0.,0.,0.};// position wrt MRS, time and energy deposited
137 static Float_t pmom[4]={0.,0.,0.,0.};
138 static TLorentzVector pos; // Lorentz vector of the track current position.
139 static TLorentzVector mom; // Lorentz vector of the track current momentum.
140 static Float_t ienergy = 0;
141 static TString curVolName;
142 static int supModuleNumber, moduleNumber, yNumber, xNumber, absid;
143 static int keyGeom=0;
144 static char *vn = "SX"; // 15-mar-05
145 static int nSMOP[7]={1,3,5,7,9,11}; // 30-mar-05
146 static int nSMON[7]={2,4,6,8,10,12};
147 static Float_t depositedEnergy=0.0;
151 if(gMC->VolId("PBMO")==0 || gMC->VolId("WSUC")==1) {
152 vn = "SCMX"; // old TRD2(TRD1) or WSUC
155 printf("AliEMCALv3::StepManager(): keyGeom %i : Sensetive volume %s \n",
157 if(gMC->VolId("WSUC")==1) printf(" WSUC - cosmic ray stand geometry \n");
159 Int_t tracknumber = gAlice->GetMCApp()->GetCurrentTrackNumber();
161 curVolName = gMC->CurrentVolName();
162 if(curVolName.Contains(vn)) { // We are in a scintillator layer
163 // printf(" keyGeom %i : Sensetive volume %s (%s) \n", keyGeom, curVolName.Data(), vn);
165 if( ((depositedEnergy = gMC->Edep()) > 0.) && (gMC->TrackTime() < fTimeCut)){// Track is inside a scintillator and deposits some energy
166 // Info("StepManager "," entry %i DE %f",++ientry, depositedEnergy); // for testing
168 fCurPrimary=gAlice->GetMCApp()->GetPrimary(tracknumber);
170 if (fCurParent==-1 || tracknumber != fCurTrack) {
172 Int_t parent=tracknumber;
173 if (fCurParent != -1) {
174 while (parent != fCurParent && parent != -1) {
175 TParticle *part=gAlice->GetMCApp()->Particle(parent);
176 parent=part->GetFirstMother();
179 if (fCurParent==-1 || parent==-1) {
180 Int_t parent=tracknumber;
181 TParticle *part=gAlice->GetMCApp()->Particle(parent);
182 while (parent != -1 && fGeometry->IsInEMCAL(part->Vx(),part->Vy(),part->Vz())) {
183 parent=part->GetFirstMother();
185 part=gAlice->GetMCApp()->Particle(parent);
189 Error("StepManager","Cannot find parent");
191 TParticle *part=gAlice->GetMCApp()->Particle(fCurParent);
192 ienergy = part->Energy();
194 while (parent != -1) {
195 part=gAlice->GetMCApp()->Particle(parent);
196 part->SetBit(kKeepBit);
197 parent=part->GetFirstMother();
200 fCurTrack=tracknumber;
202 gMC->TrackPosition(pos);
206 xyzte[3] = gMC->TrackTime() ;
208 gMC->TrackMomentum(mom);
214 // if(ientry%200 > 0) return; // testing
215 supModuleNumber = moduleNumber = yNumber = xNumber = absid = 0;
216 if(keyGeom >= 1) { // old style
217 gMC->CurrentVolOffID(4, supModuleNumber);
218 gMC->CurrentVolOffID(3, moduleNumber);
219 gMC->CurrentVolOffID(1, yNumber);
220 gMC->CurrentVolOffID(0, xNumber); // really x number now
221 if(strcmp(gMC->CurrentVolOffName(4),"SM10")==0) supModuleNumber += 10; // 13-oct-05
223 gMC->CurrentVolOffID(5, supModuleNumber);
224 gMC->CurrentVolOffID(4, moduleNumber);
225 gMC->CurrentVolOffID(1, yNumber);
226 gMC->CurrentVolOffID(0, xNumber);
227 if (strcmp(gMC->CurrentVolOffName(5),"SMOP")==0) supModuleNumber = nSMOP[supModuleNumber-1];
228 else if(strcmp(gMC->CurrentVolOffName(5),"SMON")==0) supModuleNumber = nSMON[supModuleNumber-1];
229 else assert(0); // something wrong
231 absid = fGeometry->GetAbsCellId(supModuleNumber, moduleNumber, yNumber, xNumber);
233 if (absid == -1) Fatal("StepManager()", "Wrong id ") ;
235 Float_t lightYield = depositedEnergy ;
236 // Apply Birk's law (copied from G3BIRK)
238 if (gMC->TrackCharge()!=0) { // Check
239 Float_t BirkC1_mod = 0;
240 if (fBirkC0==1){ // Apply correction for higher charge states
241 if (TMath::Abs(gMC->TrackCharge())>=2) BirkC1_mod=fBirkC1*7.2/12.6;
242 else BirkC1_mod=fBirkC1;
246 if (gMC->TrackStep()>0) dedxcm=1000.*gMC->Edep()/gMC->TrackStep();
248 lightYield=lightYield/(1.+BirkC1_mod*dedxcm+fBirkC2*dedxcm*dedxcm);
251 xyzte[4] = lightYield; // 15-dec-04
252 Float_t xd[5]; // see Gmtod
253 gMC->Gmtod(xyzte, xd, 1);
256 // printf(" x %7.2f y %7.2f z %7.2f de %f\n", xd[0], xd[1], xd[2], xd[4]);
259 printf("#sm %2i #m %3i #x %1i #z %1i -> absid %i : xyzte[4] = %f\n",
260 supModuleNumber,moduleNumber,yNumber,xNumber,absid, xd[4]);
262 AddHit(fIshunt, fCurPrimary,tracknumber, fCurParent, ienergy, absid, xd, pmom);
263 } // there is deposited energy
267 void AliEMCALv3::FinishEvent()
270 fHNhits->Fill(double(fHits->GetEntries()));
271 de = GetDepositEnergy(0);
272 if(fHDe) fHDe->Fill(de);
275 Double_t AliEMCALv3::GetDepositEnergy(int print)
276 { // 23-mar-05 - for testing
277 // cout<<"AliEMCALv3::GetDepositEnergy() : fHits "<<fHits<<endl;
278 if(fHits == 0) return 0.;
279 static AliEMCALHitv1 *hit=0;
280 static Double_t de=0., deHit=0., zhl=0.0, zShift = 0.16*77;
281 for(int ih=0; ih<fHits->GetEntries(); ih++) {
282 hit = (AliEMCALHitv1*)fHits->UncheckedAt(ih);
283 deHit = (double)hit->GetEnergy();
284 zhl = (double)hit->Z() + zShift;
285 if(zhl>2.*zShift) zhl = 2*zShift - 0.002;
287 if(fHDeDz) fHDeDz->Fill(zhl, deHit);
290 printf(" #hits %i de %f \n", fHits->GetEntries(), de);
292 printf(" #primary particles %i\n", gAlice->GetHeader()->GetNprimary());
298 void AliEMCALv3::Browse(TBrowser* b)