TrkCuts/TrkChi2DeflTimeCut/TrkChi2DeflTimeCut.h

/*
 * TrkChi2DeflTimeCut.h
 *
 *  Created on: 6-oct-2009
 *      Author: S. Ricciarini
 */

/*! @file TrkChi2DeflTimeCut.h The TrkChi2DeflTimeCut class definition file */

#ifndef TRKCHI2DEFLTIMECUT_H_
#define TRKCHI2DEFLTIMECUT_H_

#include "../../PamCutBase/PamCutBase.h"

#include <TH2F.h>
#include <TTimeStamp.h>

/*! @brief The tracker chi2 vs |deflection| cut.
 *
 * Events whose track has been fitted with a chi2 greater than Chi2(|eta|) are discarded.
 * Chi2(eta) is a function which gives the maximum value of chi2 associated to a certain
 * |deflection| (|eta|); in current implementation it is parameterized as:
 *
 *   Chi2(|eta|) = p0 + ( p1 * |eta|^p2 * (1 + (p3 * |eta|)^2) )
 *   with eta expressed in GV^-1
 *
 * where p0, p1 and p2 are parameters. These are read from a calibration text file, whose format must be:
 * ...
 * first_day    last_day        p0      p1      p2      p3
 * with first_day and last_day expressed in the format YYMMDD
 * ...
 * where each row corresponds to a given time interval (first_day,last_day)
 *
 * For a given event the associated day is determined; the FIRST (starting from first row) time interval of the calibration file, which contains the event day, gives the parameters to be inserted in the Chi2(|eta|) for the given event.
 * If the event day does not fall in any of the intervals of the calibration file, then the event is discarded. 
 *
 */

class TrkChi2DeflTimeCut: public PamCut {

public:
  /*! @brief Constructor.
   *
   * @param cutName The cut's name.
   * @param calibFile Path for the calibration text file.
   */
  TrkChi2DeflTimeCut(const char *cutName, const char *calibFile) :
    PamCut(cutName), _calibFile(calibFile) {
 
    _chi2CutTable.open(_calibFile);
    while (! _chi2CutTable.eof()) {
    
      _chi2CutTable >> _tstringtemp;
      _iDayFirst.push_back(_tstringtemp.Atoi());

      _chi2CutTable >> _tstringtemp;
      _iDayLast.push_back(_tstringtemp.Atoi());
      
      _chi2CutTable >> _tstringtemp;
      _p0.push_back(_tstringtemp.Atof());
      
      _chi2CutTable >> _tstringtemp;
      _p1.push_back(_tstringtemp.Atof());

      _chi2CutTable >> _tstringtemp;
      _p2.push_back(_tstringtemp.Atof());      

      _chi2CutTable >> _tstringtemp;
      _p3.push_back(_tstringtemp.Atof());      
      
    }
    _chi2CutTable.close();

  }

  /*! @brief Destructor. */
  ~TrkChi2DeflTimeCut() {

  }

  /*! @brief The tracker chi2 vs |deflection| check.
   *
   *
   * @param event The event to analyze.
   * @return #CUTOK if chi2 < Chi2(|eta|).
   * @return 0 if not
   */
  int Check(PamLevel2 *event);

private:

    virtual double _GetChi2(PamLevel2 *event);

    const char* _calibFile;

    TString _tstringtemp;
    
    std::vector<Int_t> _iDayFirst;
    std::vector<Int_t> _iDayLast;
    std::vector<Double_t> _p0;
    std::vector<Double_t> _p1;
    std::vector<Double_t> _p2;
    std::vector<Double_t> _p3;

    ifstream _chi2CutTable;
    
    Double_t _p0sel, _p1sel, _p2sel, _p3sel;
    
    TTimeStamp _time;

};
#endif /* TRKCHI2DEFLTIMECUT_H_ */
1	/*
2	* TrkChi2DeflTimeCut.h
3	*
4	* Created on: 6-oct-2009
5	* Author: S. Ricciarini
6	*/
7
8	/! @file TrkChi2DeflTimeCut.h The TrkChi2DeflTimeCut class definition file /
9
10	#ifndef TRKCHI2DEFLTIMECUT_H_
11	#define TRKCHI2DEFLTIMECUT_H_
12
13	#include "../../PamCutBase/PamCutBase.h"
14
15	#include <TH2F.h>
16	#include <TTimeStamp.h>
17
18	/*! @brief The tracker chi2 vs \|deflection\| cut.
19	*
20	* Events whose track has been fitted with a chi2 greater than Chi2(\|eta\|) are discarded.
21	* Chi2(eta) is a function which gives the maximum value of chi2 associated to a certain
22	* \|deflection\| (\|eta\|); in current implementation it is parameterized as:
23	*
24	* Chi2(\|eta\|) = p0 + ( p1 * \|eta\|^p2 * (1 + (p3 * \|eta\|)^2) )
25	* with eta expressed in GV^-1
26	*
27	* where p0, p1 and p2 are parameters. These are read from a calibration text file, whose format must be:
28	* ...
29	* first_day last_day p0 p1 p2 p3
30	* with first_day and last_day expressed in the format YYMMDD
31	* ...
32	* where each row corresponds to a given time interval (first_day,last_day)
33	*
34	* For a given event the associated day is determined; the FIRST (starting from first row) time interval of the calibration file, which contains the event day, gives the parameters to be inserted in the Chi2(\|eta\|) for the given event.
35	* If the event day does not fall in any of the intervals of the calibration file, then the event is discarded.
36	*
37	*/
38
39	class TrkChi2DeflTimeCut: public PamCut {
40
41	public:
42	/*! @brief Constructor.
43	*
44	* @param cutName The cut's name.
45	* @param calibFile Path for the calibration text file.
46	*/
47	TrkChi2DeflTimeCut(const char cutName, const char calibFile) :
48	PamCut(cutName), _calibFile(calibFile) {
49
50	_chi2CutTable.open(_calibFile);
51	while (! _chi2CutTable.eof()) {
52
53	_chi2CutTable >> _tstringtemp;
54	_iDayFirst.push_back(_tstringtemp.Atoi());
55
56	_chi2CutTable >> _tstringtemp;
57	_iDayLast.push_back(_tstringtemp.Atoi());
58
59	_chi2CutTable >> _tstringtemp;
60	_p0.push_back(_tstringtemp.Atof());
61
62	_chi2CutTable >> _tstringtemp;
63	_p1.push_back(_tstringtemp.Atof());
64
65	_chi2CutTable >> _tstringtemp;
66	_p2.push_back(_tstringtemp.Atof());
67
68	_chi2CutTable >> _tstringtemp;
69	_p3.push_back(_tstringtemp.Atof());
70
71	}
72	_chi2CutTable.close();
73
74	}
75
76	/! @brief Destructor. /
77	~TrkChi2DeflTimeCut() {
78
79	}
80
81	/*! @brief The tracker chi2 vs \|deflection\| check.
82	*
83	*
84	* @param event The event to analyze.
85	* @return #CUTOK if chi2 < Chi2(\|eta\|).
86	* @return 0 if not
87	*/
88	int Check(PamLevel2 *event);
89
90	private:
91
92	virtual double _GetChi2(PamLevel2 *event);
93
94	const char* _calibFile;
95
96	TString _tstringtemp;
97
98	std::vector<Int_t> _iDayFirst;
99	std::vector<Int_t> _iDayLast;
100	std::vector<Double_t> _p0;
101	std::vector<Double_t> _p1;
102	std::vector<Double_t> _p2;
103	std::vector<Double_t> _p3;
104
105	ifstream _chi2CutTable;
106
107	Double_t _p0sel, _p1sel, _p2sel, _p3sel;
108
109	TTimeStamp _time;
110
111	};
112	#endif /* TRKCHI2DEFLTIMECUT_H_ */