EigenP4JacobianEEtaPhiM2PtEtaPhiM Class Reference

#include <EigenP4JacobianEEtaPhiM2PtEtaPhiM.h>

Inheritance diagram for EigenP4JacobianEEtaPhiM2PtEtaPhiM:

Collaboration diagram for EigenP4JacobianEEtaPhiM2PtEtaPhiM:

Public Member Functions
	EigenP4JacobianEEtaPhiM2PtEtaPhiM (double E, double eta, double M)
	~EigenP4JacobianEEtaPhiM2PtEtaPhiM ()

Detailed Description

Definition at line 10 of file EigenP4JacobianEEtaPhiM2PtEtaPhiM.h.

Constructor & Destructor Documentation

EigenP4JacobianEEtaPhiM2PtEtaPhiM()

EigenP4JacobianEEtaPhiM2PtEtaPhiM::EigenP4JacobianEEtaPhiM2PtEtaPhiM	(	double	E,
		double	eta,
		double	M )

Definition at line 10 of file EigenP4JacobianEEtaPhiM2PtEtaPhiM.cxx.

                                                :
  AmgMatrix(4,4)()
{
  double t = std::exp(-eta);
  double P = std::sqrt( std::max( 0., E*E - M*M));
  double u = 1+t*t; 
  double cosTheta = (1-t*t)/u;
  double sinTheta = 2*t/u;
 
  this->setZero();
  (*this)(0,0) = E/P * sinTheta;          // dPt/dE
  (*this)(0,1) = -P * cosTheta*sinTheta;  // dPt/deta
  (*this)(0,3) = -M/P * sinTheta;         // dPt/dM
 
  (*this)(1,1) = 1;  // deta/deta
  (*this)(2,2) = 1;  // dphi/dphi
  (*this)(3,3) = 1;  // dM/dM
}

~EigenP4JacobianEEtaPhiM2PtEtaPhiM()

EigenP4JacobianEEtaPhiM2PtEtaPhiM::~EigenP4JacobianEEtaPhiM2PtEtaPhiM ( )

inline

Definition at line 14 of file EigenP4JacobianEEtaPhiM2PtEtaPhiM.h.

{}

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The documentation for this class was generated from the following files:

• EigenP4JacobianEEtaPhiM2PtEtaPhiM.h
• EigenP4JacobianEEtaPhiM2PtEtaPhiM.cxx