NtpSRMomentum.h

Go to the documentation of this file.

// NtpSRMomentum
//
// NtpSRMomentum is an ntuple storing momentum data
//
// Based on Roy Lee's CandEventSR/MomentumInfoSR class.

#ifndef NTPSRMOMENTUM_H
#define NTPSRMOMENTUM_H

#include "TObject.h"

class NtpSRMomentum;
std::ostream& operator << (std::ostream& os, const NtpSRMomentum& ntp);

class NtpSRMomentum : public TObject {

 public:

  NtpSRMomentum() : range(0),qp(0),eqp(0), best(0), qp_rangebiased(0), eqp_rangebiased(0) {}
  virtual ~NtpSRMomentum() {}

  // State testing methods
  virtual std::ostream& Print(std::ostream& os) const;
  virtual void Print(Option_t* option = "") const; 

 public:
  // Ntuple is treated like a C-struct with public data members and
  // rule-breaking field data members not prefaced by "f" and all
  // lowercase, by popular demand.

  Float_t range; // momentum (GeV/c) of track from range (same for stop as not)
  // variable qp is q/p where q is charge in electron charge units (e.g. +/- 1
  // for most particles) and p is momentum in GeV/c as measured from curvature
  // in magnetic field
  Float_t qp;     // q/p (1/(GeV/c)) as described above     
  Float_t eqp;    // uncertainty from qp fit
  Float_t best;  // range-based if contained, curvature if not
  Float_t qp_rangebiased;
  Float_t eqp_rangebiased;
  ClassDef(NtpSRMomentum,5)
};


#endif // NTPSRMOMENTUM_H

---