JetFitterVariablesNormalization.h

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/*
  Copyright (C) 2002-2017 CERN for the benefit of the ATLAS collaboration
*/
 
/******************************************************
    @class JetFitterVariablesNormalization
********************************************************/
 
#include <cmath>
 
double norm_nVTX(int nVTX)
{
  return (((double)nVTX)-0.3)/0.5;
}
 
int back_nVTX(double nVTX)
{
  return (int)std::floor(nVTX*0.5+0.3+0.5);
}
 
double norm_nTracksAtVtx(int nTracksAtVtx)
{
  return ((double)nTracksAtVtx-1.)*(1./1.6);
}
 
int back_nTracksAtVtx(double nTracksAtVtx)
{
  return (int)std::floor(nTracksAtVtx*1.6+1.+0.5);
}
 
double norm_nSingleTracks(int nSingleTracks)
{
  return ((double)nSingleTracks-0.2)/0.5;
}
 
int back_nSingleTracks(double nSingleTracks)
{
  return (int)std::floor(nSingleTracks*0.5+0.2+0.5);
}
 
 
double norm_energyFraction(double energyFraction)
{
  return (energyFraction-0.23)*(1./0.33);
}
 
double back_energyFraction(double energyFraction)
{
  return (energyFraction*0.33)+0.23;
}
 
double norm_mass(double mass)
{
  return (mass-974.)*(1./1600.);
}
 
double back_mass(double mass)
{
  return (mass*1600.)+974.;
}
 
double norm_significance3d(double s3d)
{
  return (s3d-7.)*(1./14.);
}
 
double back_significance3d(double s3d)
{
  return (s3d*14.)+7.;
}
 
double norm_IP3D(double ip3d)
{
  return (ip3d-6.3)*(1./6.);
}
 
double back_IP3D(double ip3d)
{
  return (ip3d*6.)+6.3;
}
 
 
double norm_cat_pT(int cat_pT)
{
  return ((double)cat_pT-3.)*(1./3.);
}
 
int back_cat_pT(double cat_pT)
{
  return (int)std::floor(cat_pT*3.+3.+0.5);
}
 
double norm_cat_eta(double cat_eta)
{
  return (double)(cat_eta-1.);
}
 
int back_cat_eta(int cat_eta)
{
  return (int)std::floor(cat_eta+1.+0.5);
}