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b13bbe81 | 1 | /************************************************************************** |
2 | * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. * | |
3 | * * | |
4 | * Author: The ALICE Off-line Project. * | |
5 | * Contributors are mentioned in the code where appropriate. * | |
6 | * * | |
7 | * Permission to use, copy, modify and distribute this software and its * | |
8 | * documentation strictly for non-commercial purposes is hereby granted * | |
9 | * without fee, provided that the above copyright notice appears in all * | |
10 | * copies and that both the copyright notice and this permission notice * | |
11 | * appear in the supporting documentation. The authors make no claims * | |
12 | * about the suitability of this software for any purpose. It is * | |
13 | * provided "as is" without express or implied warranty. * | |
14 | **************************************************************************/ | |
15 | ||
16 | /* $Id$ */ | |
17 | ||
18 | //_________________________________________________________________________ | |
19 | // Implementation version v1 of EMCAL Manager class | |
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 | |
22 | // | |
23 | //*-- Author: Sahal Yacoob (LBL /UCT) | |
24 | //*-- : Jennifer Klay (LBL) | |
25 | ||
26 | ||
27 | // --- ROOT system --- | |
28 | #include "TPGON.h" | |
29 | #include "TTUBS.h" | |
30 | #include "TNode.h" | |
31 | #include "TRandom.h" | |
32 | #include "TTree.h" | |
33 | #include "TGeometry.h" | |
34 | ||
35 | ||
36 | // --- Standard library --- | |
37 | ||
38 | #include <stdio.h> | |
39 | #include <string.h> | |
40 | #include <stdlib.h> | |
41 | #include <strstream.h> | |
42 | #include <iostream.h> | |
43 | #include <math.h> | |
44 | // --- AliRoot header files --- | |
45 | ||
46 | #include "AliEMCALv1.h" | |
47 | #include "AliEMCALHit.h" | |
48 | #include "AliEMCALGeometry.h" | |
49 | #include "AliConst.h" | |
50 | #include "AliRun.h" | |
51 | #include "AliMC.h" | |
52 | ||
53 | ClassImp(AliEMCALv1) | |
54 | ||
55 | ||
56 | //______________________________________________________________________ | |
57 | AliEMCALv1::AliEMCALv1():AliEMCALv0(){ | |
58 | // ctor | |
59 | } | |
60 | //______________________________________________________________________ | |
61 | AliEMCALv1::AliEMCALv1(const char *name, const char *title): | |
62 | AliEMCALv0(name,title){ | |
63 | // Standard Creator. | |
64 | ||
65 | fHits= new TClonesArray("AliEMCALHit",1000); | |
66 | gAlice->AddHitList(fHits); | |
67 | ||
68 | fNhits = 0; | |
ffa6d63b | 69 | fSamplingFraction = 12.9 ; |
b13bbe81 | 70 | fIshunt = 1; // All hits are associated with primary particles |
71 | } | |
72 | //______________________________________________________________________ | |
73 | AliEMCALv1::~AliEMCALv1(){ | |
74 | // dtor | |
75 | ||
76 | if ( fHits) { | |
77 | fHits->Delete(); | |
78 | delete fHits; | |
79 | fHits = 0; | |
80 | } | |
81 | } | |
82 | //______________________________________________________________________ | |
61e0abb5 | 83 | void AliEMCALv1::AddHit(Int_t shunt, Int_t primary, Int_t tracknumber, Int_t iparent, Float_t ienergy, |
84 | Int_t id, Float_t * hits,Float_t * p){ | |
b13bbe81 | 85 | // Add a hit to the hit list. |
ffa6d63b | 86 | // An EMCAL hit is the sum of all hits in a single segment |
87 | // originating from the same enterring particle | |
b13bbe81 | 88 | Int_t hitCounter; |
89 | ||
90 | AliEMCALHit *newHit; | |
91 | AliEMCALHit *curHit; | |
92 | Bool_t deja = kFALSE; | |
93 | ||
61e0abb5 | 94 | newHit = new AliEMCALHit(shunt, primary, tracknumber, iparent, ienergy, id, hits, p); |
b13bbe81 | 95 | for ( hitCounter = fNhits-1; hitCounter >= 0 && !deja; hitCounter-- ) { |
96 | curHit = (AliEMCALHit*) (*fHits)[hitCounter]; | |
61e0abb5 | 97 | // We add hits with the same tracknumber, while GEANT treats |
b13bbe81 | 98 | // primaries succesively |
99 | if(curHit->GetPrimary() != primary) break; | |
100 | if( *curHit == *newHit ) { | |
101 | *curHit = *curHit + *newHit; | |
102 | deja = kTRUE; | |
103 | } // end if | |
104 | } // end for hitCounter | |
105 | ||
106 | if ( !deja ) { | |
107 | new((*fHits)[fNhits]) AliEMCALHit(*newHit); | |
108 | fNhits++; | |
109 | } // end if | |
110 | ||
111 | delete newHit; | |
112 | } | |
113 | //______________________________________________________________________ | |
114 | void AliEMCALv1::StepManager(void){ | |
115 | // Accumulates hits as long as the track stays in a single | |
116 | // crystal or PPSD gas Cell | |
117 | Int_t id[2]; // (layer, phi, Eta) indices | |
118 | Int_t absid; | |
119 | // position wrt MRS and energy deposited | |
120 | Float_t xyze[4]={0.,0.,0.,0.}; | |
61e0abb5 | 121 | Float_t pmom[4]={0.,0.,0.,0.}; |
b13bbe81 | 122 | TLorentzVector pos; // Lorentz vector of the track current position. |
123 | TLorentzVector mom; // Lorentz vector of the track current momentum. | |
124 | Int_t tracknumber = gAlice->CurrentTrack(); | |
ffa6d63b | 125 | Int_t primary = 0; |
61e0abb5 | 126 | static Int_t iparent = 0; |
127 | static Float_t ienergy = 0; | |
ffa6d63b | 128 | Int_t copy = 0; |
61e0abb5 | 129 | |
130 | ||
ffa6d63b | 131 | if(gMC->IsTrackEntering() && (strcmp(gMC->CurrentVolName(),"XALU") == 0)) // This Particle in enterring the Calorimeter |
61e0abb5 | 132 | { |
133 | iparent = tracknumber; | |
134 | gMC->TrackMomentum(mom); | |
135 | ienergy = mom[3]; | |
136 | } | |
ffa6d63b | 137 | if(gMC->CurrentVolID(copy) == gMC->VolId("XPHI") ) { // We are in a Scintillator Layer |
b13bbe81 | 138 | |
139 | gMC->CurrentVolOffID(1, id[0]); // get the POLY copy number; | |
140 | gMC->CurrentVolID(id[1]); // get the phi number inside the layer | |
141 | primary = gAlice->GetPrimary(tracknumber); | |
b13bbe81 | 142 | gMC->TrackPosition(pos); |
143 | gMC->TrackMomentum(mom); | |
144 | xyze[0] = pos[0]; | |
145 | xyze[1] = pos[1]; | |
146 | xyze[2] = pos[2]; | |
ffa6d63b | 147 | xyze[3] = fSamplingFraction*(gMC->Edep()); // Correct for sampling calorimeter |
61e0abb5 | 148 | pmom[0] = mom[0]; |
149 | pmom[1] = mom[1]; | |
150 | pmom[2] = mom[2]; | |
151 | pmom[3] = mom[3]; | |
152 | ||
b13bbe81 | 153 | if(xyze[3] > 0.){// Track is inside the crystal and deposits some energy |
154 | absid = (id[0]-1)*(fGeom->GetNPhi()) + id[1]; | |
ffa6d63b | 155 | if((absid/fGeom->GetNPhi()) < (2*fGeom->GetNZ())) |
156 | {xyze[3] = 5*xyze[3]/6 ;} // Preshower readout must be scaled | |
157 | AddHit(fIshunt, primary,tracknumber, iparent, ienergy, absid, xyze, pmom); | |
b13bbe81 | 158 | } // there is deposited energy |
61e0abb5 | 159 | } |
b13bbe81 | 160 | } |