TrkCuts/TrkNucleiZCut/TrkNucleiZCut.cpp

/*
 * TrkNucleiZCut.cpp
 *
 *  Created on: 10-mag-2009
 *      Author: Nicola Mori
 */

/*! @file TrkNucleiZCut.cpp The TrkNucleiZCut class implementation file */
#ifndef NO_TRKNUCLEI

#include "TrkNucleiZCut.h"

const float TrkNucleiZCut::_meanRigMean[] = { .992, 1.99, 3., 4., 5., 6. }; // the charge distribution peak 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

const float TrkNucleiZCut::_meanBetaMean[] = { 1., 2., 3., 4., 5., 6. }; // the charge distribution peak 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


int TrkNucleiZCut::Check(PamLevel2 *event) {

  if (_Z < 1 || _Z > 6)
    return TRKNUCLEIZ_ILLEGALZ;

  // ******** Check if TrkNuclei has already been initialized ********
  if (_trkNuclei == NULL)
    _trkNuclei = new TrkNuclei();
  _trkNuclei->Set(event->GetTrack(0)->GetTrkTrack());

  // ******** First of all, check if the minimum number of planes is matched. ********
  // NOTE: in current implementation a plane is considered valid if it is tagged as good in Tracker level 2
  //       routines. This should correspond to a valid charge.
  // TODO Check the above statement.

  // Prepare the valid charges counter
  unsigned int nValid = 0;
  for (unsigned int ip = 0; ip < 6; ip++) {
    if (_trkNuclei->GetTrkTrack()->XGood(ip) && _trkNuclei->GetTrkTrack()->XGood(ip))
      nValid++;
  }
  if (nValid < _minLayers)
    return TRKNUCLEIZ_TOOFEWLAYERS;

  // ******** Check the mean charge value ********
  if (_howToCheck == TRKNUCLEIZ_CHECKMEAN) {

    Float_t charge, meanZ, sigmaZ;
    switch (_method) {
    case TRKNUCLEIZ_RIG:
      charge = _trkNuclei->GetZ_Rigidity();
      meanZ = _meanRigMean[_Z-1];
      sigmaZ = _sigmaRigMean[_Z-1];
      break;
    case TRKNUCLEIZ_BETA:
      charge = _trkNuclei->GetZ_Beta(event->GetTrack(0)->GetToFTrack()->beta[12]);
      meanZ = _meanBetaMean[_Z-1];
      sigmaZ = _sigmaBetaMean[_Z-1];
      break;
    }

    if ((charge > meanZ + _upperLimit * sigmaZ) || (charge < meanZ - _lowerLimit * sigmaZ)) {
      return TRKNUCLEIZ_OUTOFBOUNDS;
    }

  }
  // ******** Check the charge value from each plane ********
  // NB. In current implementation only 2 check methods (mean and single values) are used, so an "else" statement
  //     is sufficient. Implement an "if" cascade or a "switch" if another check method is necessary.

  else {
    Float_t charge[6] = { 0., 0., 0., 0., 0., 0. };
    nValid = 0;
    switch (_method) {
    case TRKNUCLEIZ_RIG:
      for (int ip = 0; ip < 6; ip++) {
        charge[ip] = _trkNuclei->GetZ_Rigidity(ip);
        if (charge[ip] > 0.) {
          nValid++;
        }
      }
      break;
    case TRKNUCLEIZ_BETA:
      for (int ip = 0; ip < 6; ip++) {
        charge[ip] = _trkNuclei->GetZ_Beta(ip, event->GetTrack(0)->GetToFTrack()->beta[12]);
        if (charge[ip] > 0.) {
          nValid++;
        }
      }
      break;
    }

    for (int ip = 0; ip < 6; ip++) {
      if (charge[ip] > 0.) // Check only good layers
        // Currently, no calibration for single layers is available. Z is used as a mean value, while for sigma
        // we use the standard values use for mean dE/dx Vs. beta.
        if ((charge[ip] > _Z + _upperLimit * _sigmaBetaMean[_Z - 1]) || (charge[ip] < _Z - _lowerLimit * _sigmaBetaMean[_Z - 1])) {
          return TRKNUCLEIZ_OUTOFBOUNDS;
        }
    }
  }

  return CUTOK;

}

#endif /* NO_TRKNUCLEI */
1	/*
2	* TrkNucleiZCut.cpp
3	*
4	* Created on: 10-mag-2009
5	* Author: Nicola Mori
6	*/
7
8	/! @file TrkNucleiZCut.cpp The TrkNucleiZCut class implementation file /
9	#ifndef NO_TRKNUCLEI
10
11	#include "TrkNucleiZCut.h"
12
13	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
15
16	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
18
19
20	int TrkNucleiZCut::Check(PamLevel2 *event) {
21
22	if (_Z < 1 \|\| _Z > 6)
23	return TRKNUCLEIZ_ILLEGALZ;
24
25	// ****** Check if TrkNuclei has already been initialized ******
26	if (_trkNuclei == NULL)
27	_trkNuclei = new TrkNuclei();
28	_trkNuclei->Set(event->GetTrack(0)->GetTrkTrack());
29
30	// ****** First of all, check if the minimum number of planes is matched. ******
31	// NOTE: in current implementation a plane is considered valid if it is tagged as good in Tracker level 2
32	// routines. This should correspond to a valid charge.
33	// TODO Check the above statement.
34
35	// Prepare the valid charges counter
36	unsigned int nValid = 0;
37	for (unsigned int ip = 0; ip < 6; ip++) {
38	if (_trkNuclei->GetTrkTrack()->XGood(ip) && _trkNuclei->GetTrkTrack()->XGood(ip))
39	nValid++;
40	}
41	if (nValid < _minLayers)
42	return TRKNUCLEIZ_TOOFEWLAYERS;
43
44	// ****** Check the mean charge value ******
45	if (_howToCheck == TRKNUCLEIZ_CHECKMEAN) {
46
47	Float_t charge, meanZ, sigmaZ;
48	switch (_method) {
49	case TRKNUCLEIZ_RIG:
50	charge = _trkNuclei->GetZ_Rigidity();
51	meanZ = _meanRigMean[_Z-1];
52	sigmaZ = _sigmaRigMean[_Z-1];
53	break;
54	case TRKNUCLEIZ_BETA:
55	charge = _trkNuclei->GetZ_Beta(event->GetTrack(0)->GetToFTrack()->beta[12]);
56	meanZ = _meanBetaMean[_Z-1];
57	sigmaZ = _sigmaBetaMean[_Z-1];
58	break;
59	}
60
61	if ((charge > meanZ + _upperLimit * sigmaZ) \|\| (charge < meanZ - _lowerLimit * sigmaZ)) {
62	return TRKNUCLEIZ_OUTOFBOUNDS;
63	}
64
65	}
66	// ****** Check the charge value from each plane ******
67	// NB. In current implementation only 2 check methods (mean and single values) are used, so an "else" statement
68	// is sufficient. Implement an "if" cascade or a "switch" if another check method is necessary.
69
70	else {
71	Float_t charge[6] = { 0., 0., 0., 0., 0., 0. };
72	nValid = 0;
73	switch (_method) {
74	case TRKNUCLEIZ_RIG:
75	for (int ip = 0; ip < 6; ip++) {
76	charge[ip] = _trkNuclei->GetZ_Rigidity(ip);
77	if (charge[ip] > 0.) {
78	nValid++;
79	}
80	}
81	break;
82	case TRKNUCLEIZ_BETA:
83	for (int ip = 0; ip < 6; ip++) {
84	charge[ip] = _trkNuclei->GetZ_Beta(ip, event->GetTrack(0)->GetToFTrack()->beta[12]);
85	if (charge[ip] > 0.) {
86	nValid++;
87	}
88	}
89	break;
90	}
91
92	for (int ip = 0; ip < 6; ip++) {
93	if (charge[ip] > 0.) // Check only good layers
94	// Currently, no calibration for single layers is available. Z is used as a mean value, while for sigma
95	// we use the standard values use for mean dE/dx Vs. beta.
96	if ((charge[ip] > _Z + _upperLimit * _sigmaBetaMean[_Z - 1]) \|\| (charge[ip] < _Z - _lowerLimit * _sigmaBetaMean[_Z - 1])) {
97	return TRKNUCLEIZ_OUTOFBOUNDS;
98	}
99	}
100	}
101
102	return CUTOK;
103
104	}
105
106	#endif /* NO_TRKNUCLEI */