smearFunctionType7 Class Reference

#include <Functions.h>

Inheritance diagram for smearFunctionType7:

Public Member Functions
virtual void	smear (double &pt, double &eta, double &phi, const double *y, const std::vector< double > &parSmear)
Public Member Functions inherited from smearFunctionBase
	smearFunctionBase ()
virtual	~smearFunctionBase ()=0

Public Attributes
SigmaPtDiff	sigmaPtDiff

Additional Inherited Members
Protected Member Functions inherited from smearFunctionBase
void	smearEta (double &eta)
Protected Attributes inherited from smearFunctionBase
double	cotgth_
TRandom *	gRandom_

Detailed Description

Definition at line 2989 of file Functions.h.

Member Function Documentation

virtual void smearFunctionType7::smear ( double &  pt, double &  eta, double &  phi, const double *  y, const std::vector< double > &  parSmear  )

inlinevirtual

Implements smearFunctionBase.

Definition at line 2992 of file Functions.h.

References Pi, sigmaPtDiff, mathSSE::sqrt(), and SigmaPtDiff::squaredDiff().

  {
    double sigmaSquared = sigmaPtDiff.squaredDiff(eta);
    TF1 G("G", "[0]*exp(-0.5*pow(x,2)/[1])", -5., 5.);
    double norm = 1/(sqrt(2*TMath::Pi()*sigmaSquared));
    G.SetParameter (0,norm);
    G.SetParameter (1,sigmaSquared);
    pt = pt*(1-G.GetRandom());
  }

Member Data Documentation

SigmaPtDiff smearFunctionType7::sigmaPtDiff

Definition at line 3001 of file Functions.h.

Referenced by smear().