MdcParameter.h

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#pragma once
 
#include <iostream>
 
#ifndef M_PI
#  define M_PI 3.14159265358979323846
#endif
 
#include "MagneticFieldSvc/IBesMagFieldSvc.h"
 
class MdcParameter {
public:
  // the public method to get the static instance pointer
  static MdcParameter* instance();
 
protected:
  // Constructor and destructor
  MdcParameter();
 
public:
  // public parameters
  // findPrimatyVertex,Primary event vertex finding
  const int _findEventVertex;
 
  // event timing correction
  const int _evtTimeCorr;
 
  // minimum Pt in finding(this must be >0.)
  const double _minPt;
 
  // minimum Dr in finding
  const double _minDr;
 
  // T0 offset for real data
  const float _t0OffSet;
 
  // coefficient of x-t for real data
  const float _xtCoEff;
 
  // doTracking,fast track finding
  const int _doIt;
 
  // make Mdst table from fzisan
  const bool _mkMdst;
 
  // make Tds from fzisan
  const bool _mkTds;
 
  // magnetic field constant
  float _mfield;
 
  float _alpha;
 
  // chi2 of kappa in FTFinder::linkAxialSegments
  // sigmaKappa at linking
  const float _chi2_kappa;
 
  // minimum of chi2-chi2_kappa in FTFinder::linkAxialSegments
  const float _Min_chi2;
 
  // cut of (incomingPhi-NextOuterBoundHit.phi()) in  (0,2*M_pi) in FTFinder::linkAxialSegments
  // deltaphi should be <_deltaphi,or >2*M_PI-_deltaphi
  const float _deltaPhi;
 
  // angle of two nearest hits on two neighbour axial superlayers in
  // FTFinder::linkAxialSuperLayer234 0 ,1 or 2 layers between the two hits (neighbour layer)
  const float _D_phi1, _D_phi2, _D_phi3;
 
  // minimum quantity of stereo segments,if consider end-cap ,it can  be 1
  const int _nseg;
 
  // minimum of stereo hits,if 1,the end-cap efficiency is higher
  const int _nlength;
 
  // minium number of stereo hits
  const int _nc;
 
  // z cut in s_z fit for two steps
  const float _z_cut1, _z_cut2;
 
  // kappa fot cut requirements
  const float _chi2_1, _chi2_2, _chi2_3;
 
  // segment linear fit in superLayer
  const float _chi2_segfit;
 
  // cut bad hits when do r_phi Refit:1,not cut;2 cut
  const int _hitscut;
 
private:
  // the instance pointer
  static MdcParameter* s_paramInstance;
  IBesMagFieldSvc*     m_pmgnIMF;
};