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4347b38f | 1 | /************************************************************************** |
2 | * Copyright(c) 2004, 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 | ||
e802be3e | 18 | //____________________________________________________________________ |
4347b38f | 19 | // |
20 | // Hits in the FMD | |
088f8e79 | 21 | // Contains information on: |
22 | // Position of hit | |
23 | // Momentum of track | |
24 | // PID of track | |
25 | // Energy loss of track | |
26 | // Track # | |
27 | // Track path length | |
28 | // Track stopping status. | |
29 | // Latest changes by Christian Holm Christensen | |
4347b38f | 30 | // |
e802be3e | 31 | #include "AliFMDHit.h" // ALIFMDHIT_H |
32 | #include "AliLog.h" // ALILOG_H | |
33 | #include "Riostream.h" // ROOT_Riostream | |
54240c8d | 34 | #include <TDatabasePDG.h> |
35 | #include <TMath.h> | |
36 | #include <TString.h> | |
4347b38f | 37 | |
38 | //____________________________________________________________________ | |
925e6570 | 39 | ClassImp(AliFMDHit) |
1a1fdef7 | 40 | #if 0 |
41 | ; // This is here to keep Emacs for indenting the next line | |
42 | #endif | |
4347b38f | 43 | |
44 | ||
45 | //____________________________________________________________________ | |
46 | AliFMDHit::AliFMDHit() | |
47 | : fDetector(0), | |
48 | fRing(0), | |
49 | fSector(0), | |
50 | fStrip('\0'), | |
51 | fPx(0), | |
52 | fPy(0), | |
53 | fPz(0), | |
54 | fPdg(0), | |
55 | fEdep(0), | |
088f8e79 | 56 | fTime(0), |
57 | fLength(0), | |
58 | fStop(0) | |
4347b38f | 59 | { |
088f8e79 | 60 | // Default CTOR |
4347b38f | 61 | fX = fY = fZ = 0; |
62 | } | |
63 | ||
64 | ||
65 | //____________________________________________________________________ | |
66 | AliFMDHit::AliFMDHit(Int_t shunt, | |
67 | Int_t track, | |
68 | UShort_t detector, | |
69 | Char_t ring, | |
70 | UShort_t sector, | |
71 | UShort_t strip, | |
72 | Float_t x, | |
73 | Float_t y, | |
74 | Float_t z, | |
75 | Float_t px, | |
76 | Float_t py, | |
77 | Float_t pz, | |
78 | Float_t edep, | |
79 | Int_t pdg, | |
088f8e79 | 80 | Float_t t, |
81 | Float_t l, | |
82 | Bool_t stop) | |
4347b38f | 83 | : AliHit(shunt, track), |
84 | fDetector(detector), | |
85 | fRing(ring), | |
86 | fSector(sector), | |
87 | fStrip(strip), | |
88 | fPx(px), | |
89 | fPy(py), | |
90 | fPz(pz), | |
91 | fPdg(pdg), | |
92 | fEdep(edep), | |
088f8e79 | 93 | fTime(t), |
94 | fLength(l), | |
95 | fStop(stop) | |
4347b38f | 96 | { |
97 | // Normal FMD hit ctor | |
98 | // | |
99 | // Parameters: | |
100 | // | |
101 | // shunt ??? | |
102 | // track Track # | |
103 | // detector Detector # (1, 2, or 3) | |
104 | // ring Ring ID ('I' or 'O') | |
105 | // sector Sector # (For inner/outer rings: 0-19/0-39) | |
106 | // strip Strip # (For inner/outer rings: 0-511/0-255) | |
107 | // x Track's X-coordinate at hit | |
108 | // y Track's Y-coordinate at hit | |
109 | // z Track's Z-coordinate at hit | |
110 | // px X-component of track's momentum | |
111 | // py Y-component of track's momentum | |
112 | // pz Z-component of track's momentum | |
113 | // edep Energy deposited by track | |
114 | // pdg Track's particle Id # | |
115 | // t Time when the track hit | |
116 | // | |
117 | fX = x; | |
118 | fY = y; | |
119 | fZ = z; | |
120 | } | |
121 | ||
bf000c32 | 122 | //____________________________________________________________________ |
123 | const char* | |
124 | AliFMDHit::GetName() const | |
125 | { | |
126 | static TString n; | |
127 | n = Form("FMD%d%c[%2d,%3d]", fDetector,fRing,fSector,fStrip); | |
128 | return n.Data(); | |
129 | } | |
130 | ||
131 | //____________________________________________________________________ | |
132 | const char* | |
133 | AliFMDHit::GetTitle() const | |
134 | { | |
135 | static TString t; | |
136 | TDatabasePDG* pdgDB = TDatabasePDG::Instance(); | |
137 | TParticlePDG* pdg = pdgDB->GetParticle(fPdg); | |
138 | t = Form("%s (%d): %f MeV / %f cm", (pdg ? pdg->GetName() : "?"), | |
139 | fTrack, fEdep, fLength); | |
140 | return t.Data(); | |
141 | } | |
142 | ||
54240c8d | 143 | //____________________________________________________________________ |
144 | Float_t | |
145 | AliFMDHit::P() const | |
146 | { | |
147 | // Get the momentum of the particle of the particle that made this | |
148 | // hit. | |
149 | return TMath::Sqrt(fPx * fPx + fPy * fPy + fPz * fPz); | |
150 | } | |
151 | ||
152 | //____________________________________________________________________ | |
153 | Float_t | |
154 | AliFMDHit::M() const | |
155 | { | |
156 | // Get the mass of the particle that made this hit. | |
157 | TDatabasePDG* pdgDB = TDatabasePDG::Instance(); | |
158 | TParticlePDG* pdg = pdgDB->GetParticle(fPdg); | |
159 | return (pdg ? pdg->Mass() : -1); | |
160 | } | |
161 | ||
162 | //____________________________________________________________________ | |
163 | Float_t | |
164 | AliFMDHit::Q() const | |
165 | { | |
166 | // Get the charge of the particle that made this hit. | |
167 | TDatabasePDG* pdgDB = TDatabasePDG::Instance(); | |
168 | TParticlePDG* pdg = pdgDB->GetParticle(fPdg); | |
169 | return (pdg ? pdg->Charge() : 0); | |
170 | } | |
171 | ||
172 | ||
4347b38f | 173 | //____________________________________________________________________ |
174 | void | |
54240c8d | 175 | AliFMDHit::Print(Option_t* option) const |
4347b38f | 176 | { |
177 | // Print Hit to standard out | |
7c09877a | 178 | cout << "AliFMDHit: FMD" |
179 | << fDetector << fRing << "[" | |
180 | << setw(3) << fSector << "," | |
181 | << setw(3) << fStrip << "] = " | |
182 | << fEdep << endl; | |
54240c8d | 183 | TString opt(option); |
184 | if (opt.Contains("D", TString::kIgnoreCase)) { | |
185 | TDatabasePDG* pdgDB = TDatabasePDG::Instance(); | |
186 | TParticlePDG* pdg = pdgDB->GetParticle(fPdg); | |
187 | cout << "\tPDG:\t" << fPdg << " " << (pdg ? pdg->GetName() : "?") << "\n" | |
188 | << "\tP:\t(" << fPx << "," << fPy << "," << fPz << ") "<<P() << "\n" | |
189 | << "\tX:\t" << fX << "," << fY << "," << fZ << "\n" | |
088f8e79 | 190 | << "\tTrack #:\t" << fTrack << "\tLength:\t" |
191 | << fLength << "cm\t" << (IsStop() ? "stopped" : "") << std::endl; | |
54240c8d | 192 | } |
4347b38f | 193 | } |
194 | ||
195 | //____________________________________________________________________ | |
196 | // | |
197 | // EOF | |
198 | // |