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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"
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();
74 //______________________________________________________________________
75 AliEMCALv3::AliEMCALv3(const AliEMCALv3 & emcal):AliEMCALv1(emcal)
77 fGeometry = emcal.fGeometry;
80 //______________________________________________________________________
81 AliEMCALv3::~AliEMCALv3(){
91 //______________________________________________________________________
92 void AliEMCALv3::AddHit(Int_t shunt, Int_t primary, Int_t tracknumber, Int_t iparent, Float_t ienergy,
93 Int_t id, Float_t * hits,Float_t * p){
94 // Add a hit to the hit list.
95 // An EMCAL hit is the sum of all hits in a tower section
96 // originating from the same entering particle
97 static Int_t hitCounter;
98 static AliEMCALHitv1 *newHit, *curHit;
103 newHit = new AliEMCALHitv1(shunt, primary, tracknumber, iparent, ienergy, id, hits, p);
104 for ( hitCounter = fNhits-1; hitCounter >= 0 && !deja; hitCounter-- ) {
105 curHit = (AliEMCALHitv1*) (*fHits)[hitCounter];
106 // We add hits with the same tracknumber, while GEANT treats
107 // primaries succesively
108 if(curHit->GetPrimary() != primary)
110 if( *curHit == *newHit ) {
111 *curHit = *curHit + *newHit;
113 // break; // 30-aug-04 by PAI
115 } // end for hitCounter
118 new((*fHits)[fNhits]) AliEMCALHitv1(*newHit);
121 // printf(" fNhits %i \n", fNhits);
124 //______________________________________________________________________
125 void AliEMCALv3::StepManager(void){
126 // Accumulates hits as long as the track stays in a tower
128 // position wrt MRS and energy deposited
129 static Float_t xyzte[5]={0.,0.,0.,0.,0.};// position wrt MRS, time and energy deposited
130 static Float_t pmom[4]={0.,0.,0.,0.};
131 static TLorentzVector pos; // Lorentz vector of the track current position.
132 static TLorentzVector mom; // Lorentz vector of the track current momentum.
133 static Float_t ienergy = 0;
134 static TString curVolName;
135 static int supModuleNumber, moduleNumber, yNumber, xNumber, absid;
136 static int keyGeom=0;
137 static char *vn = "SX"; // 15-mar-05
138 static int nSMOP[7]={1,3,5,7,9,11}; // 30-mar-05
139 static int nSMON[7]={2,4,6,8,10,12};
140 static Float_t depositedEnergy=0.0;
144 if(gMC->VolId("PBMO")==0 || gMC->VolId("WSUC")==1) {
145 vn = "SCMX"; // old TRD2(TRD1) or WSUC
148 printf("AliEMCALv3::StepManager(): keyGeom %i : Sensetive volume %s \n",
150 if(gMC->VolId("WSUC")==1) printf(" WSUC - cosmic ray stand geometry \n");
152 Int_t tracknumber = gAlice->GetMCApp()->GetCurrentTrackNumber();
154 curVolName = gMC->CurrentVolName();
155 if(curVolName.Contains(vn)) { // We are in a scintillator layer
156 // printf(" keyGeom %i : Sensetive volume %s (%s) \n", keyGeom, curVolName.Data(), vn);
158 if( ((depositedEnergy = gMC->Edep()) > 0.) && (gMC->TrackTime() < fTimeCut)){// Track is inside a scintillator and deposits some energy
159 // Info("StepManager "," entry %i DE %f",++ientry, depositedEnergy); // for testing
161 fCurPrimary=gAlice->GetMCApp()->GetPrimary(tracknumber);
163 if (fCurParent==-1 || tracknumber != fCurTrack) {
165 Int_t parent=tracknumber;
166 if (fCurParent != -1) {
167 while (parent != fCurParent && parent != -1) {
168 TParticle *part=gAlice->GetMCApp()->Particle(parent);
169 parent=part->GetFirstMother();
172 if (fCurParent==-1 || parent==-1) {
173 Int_t parent=tracknumber;
174 TParticle *part=gAlice->GetMCApp()->Particle(parent);
175 while (parent != -1 && fGeometry->IsInEMCAL(part->Vx(),part->Vy(),part->Vz())) {
176 parent=part->GetFirstMother();
178 part=gAlice->GetMCApp()->Particle(parent);
182 Error("StepManager","Cannot find parent");
184 TParticle *part=gAlice->GetMCApp()->Particle(fCurParent);
185 ienergy = part->Energy();
187 while (parent != -1) {
188 part=gAlice->GetMCApp()->Particle(parent);
189 part->SetBit(kKeepBit);
190 parent=part->GetFirstMother();
193 fCurTrack=tracknumber;
195 gMC->TrackPosition(pos);
199 xyzte[3] = gMC->TrackTime() ;
201 gMC->TrackMomentum(mom);
207 // if(ientry%200 > 0) return; // testing
208 supModuleNumber = moduleNumber = yNumber = xNumber = absid = 0;
209 if(keyGeom >= 1) { // old style
210 gMC->CurrentVolOffID(4, supModuleNumber);
211 gMC->CurrentVolOffID(3, moduleNumber);
212 gMC->CurrentVolOffID(1, yNumber);
213 gMC->CurrentVolOffID(0, xNumber); // really x number now
214 if(strcmp(gMC->CurrentVolOffName(4),"SM10")==0) supModuleNumber += 10; // 13-oct-05
216 gMC->CurrentVolOffID(5, supModuleNumber);
217 gMC->CurrentVolOffID(4, moduleNumber);
218 gMC->CurrentVolOffID(1, yNumber);
219 gMC->CurrentVolOffID(0, xNumber);
220 if (strcmp(gMC->CurrentVolOffName(5),"SMOP")==0) supModuleNumber = nSMOP[supModuleNumber-1];
221 else if(strcmp(gMC->CurrentVolOffName(5),"SMON")==0) supModuleNumber = nSMON[supModuleNumber-1];
222 else assert(0); // something wrong
224 absid = fGeometry->GetAbsCellId(supModuleNumber, moduleNumber, yNumber, xNumber);
226 if (absid == -1) Fatal("StepManager()", "Wrong id ") ;
228 Float_t lightYield = depositedEnergy ;
229 // Apply Birk's law (copied from G3BIRK)
231 if (gMC->TrackCharge()!=0) { // Check
232 Float_t BirkC1_mod = 0;
233 if (fBirkC0==1){ // Apply correction for higher charge states
234 if (TMath::Abs(gMC->TrackCharge())>=2) BirkC1_mod=fBirkC1*7.2/12.6;
235 else BirkC1_mod=fBirkC1;
239 if (gMC->TrackStep()>0) dedxcm=1000.*gMC->Edep()/gMC->TrackStep();
241 lightYield=lightYield/(1.+BirkC1_mod*dedxcm+fBirkC2*dedxcm*dedxcm);
244 xyzte[4] = lightYield; // 15-dec-04
245 Float_t xd[5]; // see Gmtod
246 gMC->Gmtod(xyzte, xd, 1);
249 // printf(" x %7.2f y %7.2f z %7.2f de %f\n", xd[0], xd[1], xd[2], xd[4]);
252 printf("#sm %2i #m %3i #x %1i #z %1i -> absid %i : xyzte[4] = %f\n",
253 supModuleNumber,moduleNumber,yNumber,xNumber,absid, xd[4]);
255 AddHit(fIshunt, fCurPrimary,tracknumber, fCurParent, ienergy, absid, xd, pmom);
256 } // there is deposited energy
260 //_____________________________________________
261 void AliEMCALv3::Browse(TBrowser* b)