/[PAMELA software]/PamCut/TrkCuts/TrkNucleiZCut/TrkNucleiZCut.cpp
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Diff of /PamCut/TrkCuts/TrkNucleiZCut/TrkNucleiZCut.cpp

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revision 1.2 by pam-fi, Fri May 29 10:10:18 2009 UTC revision 1.3 by pam-fi, Wed Aug 5 14:06:14 2009 UTC
# Line 10  Line 10 
10    
11  #include "TrkNucleiZCut.h"  #include "TrkNucleiZCut.h"
12    
13  const float TrkNucleiZCut::_meanRigMean[] = { .992, 1.99, 3., 4., 5., 6. }; // the charge distribution peak for Z=1..6  const float TrkNucleiZCut::_meanRigMean[] = {.992, 1.99, 3., 4., 5., 6.}; // the charge distribution peak for Z=1..6
14  const float TrkNucleiZCut::_sigmaRigMean[] = { 0.06, 0.1, 0.17, 0.34, 0.44, 0.59 }; // the charge-width for Z=1..6  const float TrkNucleiZCut::_sigmaRigMean[] = {0.06, 0.1, 0.17, 0.34, 0.44, 0.59}; // the charge-width for Z=1..6
15    
16  const float TrkNucleiZCut::_meanBetaMean[] = { 1., 2., 3., 4., 5., 6. }; // the charge distribution peak for Z=1..6  const float TrkNucleiZCut::_meanBetaMean[] = {1., 2., 3., 4., 5., 6.}; // the charge distribution peak for Z=1..6
17  const float TrkNucleiZCut::_sigmaBetaMean[] = { 0.09, 0.1, 0.17, 0.34, 0.44, 0.59 }; // the charge-width for Z=1..6  const float TrkNucleiZCut::_sigmaBetaMean[] = {0.09, 0.1, 0.17, 0.34, 0.44, 0.59}; // the charge-width for Z=1..6
18    
19    
20  int TrkNucleiZCut::Check(PamLevel2 *event) {  int TrkNucleiZCut::Check(PamLevel2 *event) {
21    
22    if (_Z < 1 || _Z > 6)    if (_lowZ < 1 || _lowZ > 6) {
23      return TRKNUCLEIZ_ILLEGALZ;      return TRKNUCLEIZ_ILLEGALLOWZ;
24      }
25      if ((_highZ < _lowZ && _highZ != -1) || _highZ > 6) {
26        return TRKNUCLEIZ_ILLEGALLOWZ;
27      }
28    
29      /* Check if we must perform a range selection */
30      bool range = false;
31      if (_highZ 1= -1)
32      range = true;
33    
34    // ******** Check if TrkNuclei has already been initialized ********    // ******** Check if TrkNuclei has already been initialized ********
35    if (_trkNuclei == NULL)    if (_trkNuclei == NULL)
36      _trkNuclei = new TrkNuclei();    _trkNuclei = new TrkNuclei();
37    _trkNuclei->Set(event->GetTrack(0)->GetTrkTrack());    _trkNuclei->Set(event->GetTrack(0)->GetTrkTrack());
38    
39    // ******** First of all, check if the minimum number of planes is matched. ********    // ******** First of all, check if the minimum number of planes is matched. ********
# Line 36  int TrkNucleiZCut::Check(PamLevel2 *even Line 45  int TrkNucleiZCut::Check(PamLevel2 *even
45    unsigned int nValid = 0;    unsigned int nValid = 0;
46    for (unsigned int ip = 0; ip < 6; ip++) {    for (unsigned int ip = 0; ip < 6; ip++) {
47      if (_trkNuclei->GetTrkTrack()->XGood(ip) && _trkNuclei->GetTrkTrack()->XGood(ip))      if (_trkNuclei->GetTrkTrack()->XGood(ip) && _trkNuclei->GetTrkTrack()->XGood(ip))
48        nValid++;      nValid++;
49    }    }
50    if (nValid < _minLayers)    if (nValid < _minLayers)
51      return TRKNUCLEIZ_TOOFEWLAYERS;    return TRKNUCLEIZ_TOOFEWLAYERS;
52    
53    // ******** Check the mean charge value ********    // ******** Check the mean charge value ********
54    if (_howToCheck == TRKNUCLEIZ_CHECKMEAN) {    if (_howToCheck == TRKNUCLEIZ_CHECKMEAN) {
55    
56      Float_t charge, meanZ, sigmaZ;      Float_t charge = 0., meanLowZ = 0., sigmaLowZ = 0., meanHighZ = 0., sigmaHighZ = 0.;;
57      switch (_method) {      switch (_method) {
58      case TRKNUCLEIZ_RIG:        case TRKNUCLEIZ_RIG:
59        charge = _trkNuclei->GetZ_Rigidity();        charge = _trkNuclei->GetZ_Rigidity();
60        meanZ = _meanRigMean[_Z-1];        meanLowZ = _meanRigMean[_lowZ-1];
61        sigmaZ = _sigmaRigMean[_Z-1];        sigmaLowZ = _sigmaRigMean[_lowZ-1];
62          if(range) {
63            meanHighZ = _meanRigMean[_highZ-1];
64            sigmaHighZ = _sigmaRigMean[_highZ-1];
65          }
66        break;        break;
67      case TRKNUCLEIZ_BETA:        case TRKNUCLEIZ_BETA:
68        charge = _trkNuclei->GetZ_Beta(event->GetTrack(0)->GetToFTrack()->beta[12]);        charge = _trkNuclei->GetZ_Beta(event->GetTrack(0)->GetToFTrack()->beta[12]);
69        meanZ = _meanBetaMean[_Z-1];        meanLowZ = _meanBetaMean[_Z-1];
70        sigmaZ = _sigmaBetaMean[_Z-1];        sigmaLowZ = _sigmaBetaMean[_Z-1];
71          if(range) {
72            meanHighZ = _meanBetaMean[_highZ-1];
73            sigmaHighZ = _sigmaBetaMean[_highZ-1];
74          }
75    
76        break;        break;
77      }      }
78    
79      if ((charge > meanZ + _upperLimit * sigmaZ) || (charge < meanZ - _lowerLimit * sigmaZ)) {      if(!range) {
80        return TRKNUCLEIZ_OUTOFBOUNDS;        if ((charge > meanLowZ + _upperLimit * sigmaLowZ) || (charge < meanLowZ - _lowerLimit * sigmaLowZ)) {
81            return TRKNUCLEIZ_OUTOFBOUNDS;
82          }
83        }
84        else {
85          if ((charge > meanHighZ + _upperLimit * sigmaHighZ) || (charge < meanLowZ - _lowerLimit * sigmaLowZ)) {
86            return TRKNUCLEIZ_OUTOFBOUNDS;
87          }
88      }      }
   
89    }    }
90    // ******** Check the charge value from each plane ********    // ******** Check the charge value from each plane ********
91    // NB. In current implementation only 2 check methods (mean and single values) are used, so an "else" statement    // NB. In current implementation only 2 check methods (mean and single values) are used, so an "else" statement
92    //     is sufficient. Implement an "if" cascade or a "switch" if another check method is necessary.    //     is sufficient. Implement an "if" cascade or a "switch" if another check method is necessary.
93    
94    else {    else {
95      Float_t charge[6] = { 0., 0., 0., 0., 0., 0. };      Float_t charge[6] = {0., 0., 0., 0., 0., 0.};
96      nValid = 0;      nValid = 0;
97      switch (_method) {      switch (_method) {
98      case TRKNUCLEIZ_RIG:        case TRKNUCLEIZ_RIG:
99        for (int ip = 0; ip < 6; ip++) {        for (int ip = 0; ip < 6; ip++) {
100          charge[ip] = _trkNuclei->GetZ_Rigidity(ip);          charge[ip] = _trkNuclei->GetZ_Rigidity(ip);
101          if (charge[ip] > 0.) {          if (charge[ip] > 0.) {
# Line 79  int TrkNucleiZCut::Check(PamLevel2 *even Line 103  int TrkNucleiZCut::Check(PamLevel2 *even
103          }          }
104        }        }
105        break;        break;
106      case TRKNUCLEIZ_BETA:        case TRKNUCLEIZ_BETA:
107        for (int ip = 0; ip < 6; ip++) {        for (int ip = 0; ip < 6; ip++) {
108          charge[ip] = _trkNuclei->GetZ_Beta(ip, event->GetTrack(0)->GetToFTrack()->beta[12]);          charge[ip] = _trkNuclei->GetZ_Beta(ip, event->GetTrack(0)->GetToFTrack()->beta[12]);
109          if (charge[ip] > 0.) {          if (charge[ip] > 0.) {
# Line 91  int TrkNucleiZCut::Check(PamLevel2 *even Line 115  int TrkNucleiZCut::Check(PamLevel2 *even
115    
116      for (int ip = 0; ip < 6; ip++) {      for (int ip = 0; ip < 6; ip++) {
117        if (charge[ip] > 0.) // Check only good layers        if (charge[ip] > 0.) // Check only good layers
118          // Currently, no calibration for single layers is available. Z is used as a mean value, while for sigma        // Currently, no calibration for single layers is available. Z is used as a mean value, while for sigma
119          // we use the standard values use for mean dE/dx Vs. beta.        // we use the standard values use for mean dE/dx Vs. beta.
120          if ((charge[ip] > _Z + _upperLimit * _sigmaBetaMean[_Z - 1]) || (charge[ip] < _Z - _lowerLimit * _sigmaBetaMean[_Z - 1])) {        if(!range) {
121            if ((charge[ip] > _lowZ + _upperLimit * _sigmaBetaMean[_lowZ - 1]) || (charge[ip] < _lowZ - _lowerLimit * _sigmaBetaMean[_lowZ - 1])) {
122            return TRKNUCLEIZ_OUTOFBOUNDS;            return TRKNUCLEIZ_OUTOFBOUNDS;
123          }          }
124          }
125          else {
126            if ((charge[ip] > _highZ + _upperLimit * _sigmaBetaMean[_highZ - 1]) || (charge[ip] < _lowZ - _lowerLimit * _sigmaBetaMean[_lowZ - 1])) {
127              return TRKNUCLEIZ_OUTOFBOUNDS;
128            }
129          }
130      }      }
131    }    }
132    
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