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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 | /* $Id$ */ | |
16 | /** @file AliFMDHit.cxx | |
17 | @author Christian Holm Christensen <cholm@nbi.dk> | |
18 | @date Mon Mar 27 12:41:58 2006 | |
19 | @brief Hit in the FMD | |
20 | @ingroup FMD_sim | |
21 | */ | |
22 | //____________________________________________________________________ | |
23 | // | |
24 | // Hits in the FMD | |
25 | // Contains information on: | |
26 | // Position of hit | |
27 | // Momentum of track | |
28 | // PID of track | |
29 | // Energy loss of track | |
30 | // Track # | |
31 | // Track path length | |
32 | // Track stopping status. | |
33 | // Latest changes by Christian Holm Christensen | |
34 | // | |
35 | #include "AliFMDHit.h" // ALIFMDHIT_H | |
36 | // #include "AliLog.h" // ALILOG_H | |
37 | #include "Riostream.h" // ROOT_Riostream | |
38 | #include <TDatabasePDG.h> | |
39 | // #include <TMath.h> | |
40 | #include <TString.h> | |
41 | ||
42 | //____________________________________________________________________ | |
43 | ClassImp(AliFMDHit) | |
44 | #if 0 | |
45 | ; // This is here to keep Emacs for indenting the next line | |
46 | #endif | |
47 | ||
48 | ||
49 | //____________________________________________________________________ | |
50 | AliFMDHit::AliFMDHit() | |
51 | : fDetector(0), | |
52 | fRing(0), | |
53 | fSector(0), | |
54 | fStrip('\0'), | |
55 | fPx(0), | |
56 | fPy(0), | |
57 | fPz(0), | |
58 | fPdg(0), | |
59 | fEdep(0), | |
60 | fTime(0), | |
61 | fLength(0), | |
62 | fStop(0) | |
63 | { | |
64 | // Default CTOR | |
65 | fX = fY = fZ = 0; | |
66 | } | |
67 | ||
68 | ||
69 | //____________________________________________________________________ | |
70 | AliFMDHit::AliFMDHit(Int_t shunt, | |
71 | Int_t track, | |
72 | UShort_t detector, | |
73 | Char_t ring, | |
74 | UShort_t sector, | |
75 | UShort_t strip, | |
76 | Float_t x, | |
77 | Float_t y, | |
78 | Float_t z, | |
79 | Float_t px, | |
80 | Float_t py, | |
81 | Float_t pz, | |
82 | Float_t edep, | |
83 | Int_t pdg, | |
84 | Float_t t, | |
85 | Float_t l, | |
86 | Bool_t stop) | |
87 | : AliHit(shunt, track), | |
88 | fDetector(detector), | |
89 | fRing(ring), | |
90 | fSector(sector), | |
91 | fStrip(strip), | |
92 | fPx(px), | |
93 | fPy(py), | |
94 | fPz(pz), | |
95 | fPdg(pdg), | |
96 | fEdep(edep), | |
97 | fTime(t), | |
98 | fLength(l), | |
99 | fStop(stop) | |
100 | { | |
101 | // Normal FMD hit ctor | |
102 | // | |
103 | // Parameters: | |
104 | // | |
105 | // shunt ??? | |
106 | // track Track # | |
107 | // detector Detector # (1, 2, or 3) | |
108 | // ring Ring ID ('I' or 'O') | |
109 | // sector Sector # (For inner/outer rings: 0-19/0-39) | |
110 | // strip Strip # (For inner/outer rings: 0-511/0-255) | |
111 | // x Track's X-coordinate at hit | |
112 | // y Track's Y-coordinate at hit | |
113 | // z Track's Z-coordinate at hit | |
114 | // px X-component of track's momentum | |
115 | // py Y-component of track's momentum | |
116 | // pz Z-component of track's momentum | |
117 | // edep Energy deposited by track | |
118 | // pdg Track's particle Id # | |
119 | // t Time when the track hit | |
120 | // | |
121 | fX = x; | |
122 | fY = y; | |
123 | fZ = z; | |
124 | } | |
125 | ||
126 | //____________________________________________________________________ | |
127 | const char* | |
128 | AliFMDHit::GetName() const | |
129 | { | |
130 | // Get the name | |
131 | static TString n; | |
132 | n = Form("FMD%d%c[%2d,%3d]", fDetector,fRing,fSector,fStrip); | |
133 | return n.Data(); | |
134 | } | |
135 | ||
136 | //____________________________________________________________________ | |
137 | const char* | |
138 | AliFMDHit::GetTitle() const | |
139 | { | |
140 | // Get the title | |
141 | static TString t; | |
142 | TDatabasePDG* pdgDB = TDatabasePDG::Instance(); | |
143 | TParticlePDG* pdg = pdgDB->GetParticle(fPdg); | |
144 | t = Form("%s (%d): %f MeV / %f cm", (pdg ? pdg->GetName() : "?"), | |
145 | fTrack, fEdep, fLength); | |
146 | return t.Data(); | |
147 | } | |
148 | ||
149 | //____________________________________________________________________ | |
150 | Float_t | |
151 | AliFMDHit::P() const | |
152 | { | |
153 | // Get the momentum of the particle of the particle that made this | |
154 | // hit. | |
155 | return TMath::Sqrt(fPx * fPx + fPy * fPy + fPz * fPz); | |
156 | } | |
157 | ||
158 | //____________________________________________________________________ | |
159 | Float_t | |
160 | AliFMDHit::M() const | |
161 | { | |
162 | // Get the mass of the particle that made this hit. | |
163 | TDatabasePDG* pdgDB = TDatabasePDG::Instance(); | |
164 | TParticlePDG* pdg = pdgDB->GetParticle(fPdg); | |
165 | return (pdg ? pdg->Mass() : -1); | |
166 | } | |
167 | ||
168 | //____________________________________________________________________ | |
169 | Float_t | |
170 | AliFMDHit::Q() const | |
171 | { | |
172 | // Get the charge of the particle that made this hit. | |
173 | TDatabasePDG* pdgDB = TDatabasePDG::Instance(); | |
174 | TParticlePDG* pdg = pdgDB->GetParticle(fPdg); | |
175 | return (pdg ? pdg->Charge() : 0); | |
176 | } | |
177 | ||
178 | ||
179 | //____________________________________________________________________ | |
180 | void | |
181 | AliFMDHit::Print(Option_t* option) const | |
182 | { | |
183 | // Print Hit to standard out | |
184 | cout << "AliFMDHit: FMD" | |
185 | << fDetector << fRing << "[" | |
186 | << setw(3) << fSector << "," | |
187 | << setw(3) << fStrip << "] = " | |
188 | << fEdep << endl; | |
189 | TString opt(option); | |
190 | if (opt.Contains("D", TString::kIgnoreCase)) { | |
191 | TDatabasePDG* pdgDB = TDatabasePDG::Instance(); | |
192 | TParticlePDG* pdg = pdgDB->GetParticle(fPdg); | |
193 | cout << "\tPDG:\t" << fPdg << " " << (pdg ? pdg->GetName() : "?") << "\n" | |
194 | << "\tP:\t(" << fPx << "," << fPy << "," << fPz << ") "<<P() << "\n" | |
195 | << "\tX:\t" << fX << "," << fY << "," << fZ << "\n" | |
196 | << "\tTrack #:\t" << fTrack << "\tLength:\t" | |
197 | << fLength << "cm\t" << (IsStop() ? "stopped" : "") << std::endl; | |
198 | } | |
199 | } | |
200 | ||
201 | //____________________________________________________________________ | |
202 | // | |
203 | // EOF | |
204 | // |