EigenP4JacobianPxPyPzE2EEtaPhiM Class Reference

#include <EigenP4JacobianPxPyPzE2EEtaPhiM.h>

Inheritance diagram for EigenP4JacobianPxPyPzE2EEtaPhiM:

Collaboration diagram for EigenP4JacobianPxPyPzE2EEtaPhiM:

Public Member Functions
	EigenP4JacobianPxPyPzE2EEtaPhiM (double px, double py, double pz, double E)
	EigenP4JacobianPxPyPzE2EEtaPhiM ()

Detailed Description

Definition at line 10 of file EigenP4JacobianPxPyPzE2EEtaPhiM.h.

Constructor & Destructor Documentation

EigenP4JacobianPxPyPzE2EEtaPhiM() [1/2]

EigenP4JacobianPxPyPzE2EEtaPhiM::EigenP4JacobianPxPyPzE2EEtaPhiM	(	double	px,
		double	py,
		double	pz,
		double	E )

Definition at line 10 of file EigenP4JacobianPxPyPzE2EEtaPhiM.cxx.

                                            :
  AmgMatrix(4,4)()
{
  double pt2 = px*px + py*py;
  double p2 = pt2 + pz*pz;
  double p = std::sqrt(p2);
  double M = std::sqrt( std::max( 0., E*E - p2));
 
  this->setZero();
  (*this)(0,3) = 1; // dE/dE
 
  (*this)(1,0) = -px*pz/(p*pt2);  // deta/dpx
  (*this)(1,1) = -py*pz/(p*pt2);  // deta/dpy
  (*this)(1,2) =  1/p;            // deta/dpz
 
  (*this)(2,0) = -py/pt2;   // dphi/dpx
  (*this)(2,1) =  px/pt2;   // dphi/dpy
 
  (*this)(3,0) = -px/M;     // dM/dpx
  (*this)(3,1) = -py/M;     // dM/dpy
  (*this)(3,2) = -pz/M;     // dM/dpz
  (*this)(3,3) = E/M;       // dM/dE
}

EigenP4JacobianPxPyPzE2EEtaPhiM() [2/2]

EigenP4JacobianPxPyPzE2EEtaPhiM::EigenP4JacobianPxPyPzE2EEtaPhiM ( )

inline

Definition at line 14 of file EigenP4JacobianPxPyPzE2EEtaPhiM.h.

{}

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

• EigenP4JacobianPxPyPzE2EEtaPhiM.h
• EigenP4JacobianPxPyPzE2EEtaPhiM.cxx