NtpSRTrackTime.h

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// NtpSRTrackTime
//
// NtpSRTrackTime is an ntuple class to holds track timing data.
//
// Based on Roy Lee's CandEventSR/TrackTimeInfoSR
//

#ifndef NTPSRTRACKTIME_H
#define NTPSRTRACKTIME_H

#include <iosfwd> // ostream fwd decl'
#include "TObject.h"

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

class NtpSRTrackTime : public TObject {

 public:
  // Constructors & Destructors
  NtpSRTrackTime(): ndigit(0),chi2(0),u0(0),u1(0),v0(0),v1(0),cdtds(0),du(0),
                    dv(0),dtds(0),t0(0), forwardRMS(0), forwardNDOF(0), backwardRMS(0), backwardNDOF(0) {}
  virtual ~NtpSRTrackTime() {}

  // 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
  // code rule breaking field data members not prefaced by "f" and all
  // lowercase, by popular demand.

  UShort_t ndigit; // no. of digits used to determine track dir. from timing
  Float_t chi2;    // chi2 of fit done on track direction determination
  // u0,u1,v0,v1 hold the mean values of the fully calibrated and propagation
  // delay corrected times for the separate views and strip ends
  Double_t u0;     // time (sec) u-view east
  Double_t u1;     // time (sec) u-view west
  Double_t v0;     // time (sec) v-view east
  Double_t v1;     // time (sec) v-view west
  // The velocity of the track is measured by comparing the corrected times
  // to the travel distance. 
  Float_t cdtds; // 1/beta
  // timing based position is determined from time diff. of readout at 2 ends
  // spatial based position is determined from strip locations in opposite view
  Float_t du; // diff(m) between timing based position and spatial position
  Float_t dv; // diff(m) between timing based position and spatial position
  Double_t dtds;  // unnormalized slope from time fit used to determine beta
  Double_t t0;    // offset from time fit used to determine beta
  Double_t forwardRMS; // RMS for forward time fit
  Int_t forwardNDOF; // # DoF for forward time fit
  Double_t backwardRMS; // RMS for backward time fit
  Int_t backwardNDOF; // # DoF for backward time fit
  ClassDef(NtpSRTrackTime,3)
};


#endif // NTPSRTRACKTIME_H

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