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/* |
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* TrkNucleiZCut.cpp |
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* |
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* Created on: 10-mag-2009 |
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* Author: Nicola Mori |
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*/ |
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|
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/*! @file TrkNucleiZCut.cpp The TrkNucleiZCut class implementation file */ |
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#ifndef NO_TRKNUCLEI |
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|
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#include "TrkNucleiZCut.h" |
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|
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const float TrkNucleiZCut::_sigmaZ[] = { 0.09, 0.1, 0.17, 0.34, 0.44, 0.59 }; // the charge-width in a layer for Z=1..6 |
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int TrkNucleiZCut::Check(PamLevel2 *event) { |
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|
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if (_Z < 1 || _Z > 6) |
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return TRKNUCLEIZ_ILLEGALZ; |
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|
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// ******** Check if TrkNuclei has already been initialized ******** |
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if (_trkNuclei == NULL) |
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_trkNuclei = new TrkNuclei(); |
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_trkNuclei->Set(event->GetTrack(0)->GetTrkTrack()); |
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|
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// ******** First of all, check if the minimum number of planes is matched. ******** |
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// NOTE: in current implementation a plane is considered valid if it is tagged as good in Tracker level 2 |
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// routines. This should correspond to a valid charge. |
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// TODO Check the above statement. |
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|
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// Prepare the valid charges counter |
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unsigned int nValid = 0; |
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for (unsigned int ip = 0; ip < 6; ip++) { |
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if (_trkNuclei->GetTrkTrack()->XGood(ip) && _trkNuclei->GetTrkTrack()->XGood(ip)) |
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nValid++; |
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} |
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if (nValid < _minLayers) |
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return TRKNUCLEIZ_TOOFEWLAYERS; |
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|
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// ******** Check the mean charge value ******** |
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if (_howToCheck == TRKNUCLEIZ_CHECKMEAN) { |
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|
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Float_t charge; |
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switch (_method) { |
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case TRKNUCLEIZ_DEFL: |
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charge = _trkNuclei->GetZ_Rigidity(); |
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break; |
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case TRKNUCLEIZ_BETA: |
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charge = _trkNuclei->GetZ_Beta(event->GetTrack(0)->GetToFTrack()->beta[12]); |
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break; |
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} |
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|
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if ((charge > _Z + _upperLimit * _sigmaZ[_Z - 1]) || (charge < _Z - _lowerLimit * _sigmaZ[_Z - 1])) { |
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return TRKNUCLEIZ_OUTOFBOUNDS; |
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} |
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|
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} |
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// ******** Check the charge value from each plane ******** |
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// NB. In current implementation only 2 check methods (mean and single values) are used, so an "else" statement |
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// is sufficient. Implement an "if" cascade or a "switch" if another check method is necessary. |
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|
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else { |
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Float_t charge[6] = { 0., 0., 0., 0., 0., 0. }; |
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nValid = 0; |
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switch (_method) { |
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case TRKNUCLEIZ_DEFL: |
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for (int ip = 0; ip < 6; ip++) { |
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charge[ip] = _trkNuclei->GetZ_Rigidity(ip); |
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if (charge[ip] > 0.) { |
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nValid++; |
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} |
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} |
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break; |
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case TRKNUCLEIZ_BETA: |
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for (int ip = 0; ip < 6; ip++) { |
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charge[ip] = _trkNuclei->GetZ_Beta(ip, event->GetTrack(0)->GetToFTrack()->beta[12]); |
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if (charge[ip] > 0.) { |
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nValid++; |
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} |
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} |
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break; |
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} |
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|
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for (int ip = 0; ip < 6; ip++) { |
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if (charge[ip] > 0.) // Check only good layers |
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if ((charge[ip] > _Z + _upperLimit * _sigmaZ[_Z - 1]) || (charge[ip] < _Z - _lowerLimit * _sigmaZ[_Z - 1])) { |
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return TRKNUCLEIZ_OUTOFBOUNDS; |
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} |
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} |
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} |
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|
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return CUTOK; |
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|
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} |
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|
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#endif /* NO_TRKNUCLEI */ |
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