EnergyScaleCorrection::SmearCorrection Struct Reference

#include <EnergyScaleCorrection.h>

Public Member Functions
std::ostream &	print (std::ostream &os) const
float	sigma (const float et, const float nrSigmaRho=0., const float nrSigmaPhi=0.) const
	SmearCorrection ()
	SmearCorrection (float iRho, float iRhoErr, float iPhi, float iPhiErr, float iEMean, float iEMeanErr)

Private Attributes
float	eMean_
float	eMeanErr_
float	phi_
float	phiErr_
float	rho_
float	rhoErr_

Friends
std::ostream &	operator<< (std::ostream &os, const SmearCorrection &a)

Detailed Description

Definition at line 58 of file EnergyScaleCorrection.h.

Constructor & Destructor Documentation

EnergyScaleCorrection::SmearCorrection::SmearCorrection ( )

inline

Definition at line 60 of file EnergyScaleCorrection.h.

: rho_(0.), rhoErr_(0.), phi_(0.), phiErr_(0.), eMean_(0.), eMeanErr_(0.) {}

EnergyScaleCorrection::SmearCorrection::SmearCorrection ( float  iRho, float  iRhoErr, float  iPhi, float  iPhiErr, float  iEMean, float  iEMeanErr  )

inline

Definition at line 61 of file EnergyScaleCorrection.h.

        : rho_(iRho), rhoErr_(iRhoErr), phi_(iPhi), phiErr_(iPhiErr), eMean_(iEMean), eMeanErr_(iEMeanErr) {}

Member Function Documentation

std::ostream & EnergyScaleCorrection::SmearCorrection::print

(

std::ostream &

os

)

const

Definition at line 335 of file EnergyScaleCorrection.cc.

                                                                            {
  os << rho_ << " +/- " << rhoErr_ << "\t" << phi_ << " +/- " << phiErr_ << "\t" << eMean_ << " +/- " << eMeanErr_;
  return os;
}

float EnergyScaleCorrection::SmearCorrection::sigma ( const float  et, const float  nrSigmaRho = 0., const float  nrSigmaPhi = 0.  ) const

inline

Definition at line 67 of file EnergyScaleCorrection.h.

References alpha, funct::cos(), funct::sin(), and mathSSE::sqrt().

Referenced by PhotonEnergyCalibrator::calibrate(), ElectronEnergyCalibrator::calibrate(), PhotonEnergyCalibrator::setEnergyAndSystVarations(), ElectronEnergyCalibrator::setEnergyAndSystVarations(), and EnergyScaleCorrection::smearingSigma().

                                                                                                {
      const float rhoVal = rho_ + rhoErr_ * nrSigmaRho;
      const float phiVal = phi_ + phiErr_ * nrSigmaPhi;
      const float constTerm = rhoVal * std::sin(phiVal);
      const float alpha = rhoVal * eMean_ * std::cos(phiVal);
      return std::sqrt(constTerm * constTerm + alpha * alpha / et);
    }

Friends And Related Function Documentation

std::ostream& operator<< ( std::ostream &  os, const SmearCorrection &  a  )

friend

Definition at line 64 of file EnergyScaleCorrection.h.

{ return a.print(os); }

Member Data Documentation

float EnergyScaleCorrection::SmearCorrection::eMean_

private

Definition at line 78 of file EnergyScaleCorrection.h.

float EnergyScaleCorrection::SmearCorrection::eMeanErr_

private

Definition at line 78 of file EnergyScaleCorrection.h.

float EnergyScaleCorrection::SmearCorrection::phi_

private

Definition at line 77 of file EnergyScaleCorrection.h.

float EnergyScaleCorrection::SmearCorrection::phiErr_

private

Definition at line 77 of file EnergyScaleCorrection.h.

float EnergyScaleCorrection::SmearCorrection::rho_

private

Definition at line 76 of file EnergyScaleCorrection.h.

float EnergyScaleCorrection::SmearCorrection::rhoErr_

private

Definition at line 76 of file EnergyScaleCorrection.h.