P5toP4JacobianPhiThetaEM2PxPyPzE Class Reference

Jacobian to transfrom trk perigee parameters (d0,z0,phi,theta,E) to (px,py,pz,E) More...

#include <P5toP4JacobianPhiThetaEM2PxPyPzE.h>

Inheritance diagram for P5toP4JacobianPhiThetaEM2PxPyPzE:

Collaboration diagram for P5toP4JacobianPhiThetaEM2PxPyPzE:

Public Member Functions
	P5toP4JacobianPhiThetaEM2PxPyPzE (const double phi0, const double theta, const double E, const double mass=ParticleConstants::muonMassInMeV)
	~P5toP4JacobianPhiThetaEM2PxPyPzE ()

Detailed Description

Jacobian to transfrom trk perigee parameters (d0,z0,phi,theta,E) to (px,py,pz,E)

Definition at line 21 of file P5toP4JacobianPhiThetaEM2PxPyPzE.h.

Constructor & Destructor Documentation

P5toP4JacobianPhiThetaEM2PxPyPzE()

P5toP4JacobianPhiThetaEM2PxPyPzE::P5toP4JacobianPhiThetaEM2PxPyPzE	(	const double	phi0,
		const double	theta,
		const double	E,
		const double	mass = ParticleConstants::muonMassInMeV )

Definition at line 8 of file P5toP4JacobianPhiThetaEM2PxPyPzE.cxx.

                                                      :
  CLHEP::HepMatrix(4,5,0)
{
  double sinp = sin(phi0);
  double cosp = cos(phi0);
  double sint = sin(theta);
  double cost = cos(theta);
  double mom  = sqrt((E*E)-(mass*mass));
 
  // transformation of track parameters
  double px = mom*cosp*sint;
  double py = mom*sinp*sint;
  double pz = mom*cost;
  double EoverP = E/mom;
  
 
  (*this)[0][2] = -py; // dpx/dphi0
  (*this)[0][3] =  pz*cosp; // dpx/dtheta
  (*this)[0][4] =  EoverP*sint*cosp; // dpx/E
  
  (*this)[1][2] =  px; // dpy/dphi0
  (*this)[1][3] =  pz*sinp; // dpy/dtheta
  (*this)[1][4] =  EoverP*sint*sinp; // dpy/dE
  
  (*this)[2][3] = -sint*mom; // dpz/dtheta
  (*this)[2][4] =  EoverP*cost; // dpz/dE
 
  (*this)[3][4] =  1.; // dE/dE
  
}

~P5toP4JacobianPhiThetaEM2PxPyPzE()

P5toP4JacobianPhiThetaEM2PxPyPzE::~P5toP4JacobianPhiThetaEM2PxPyPzE ( )

inline

Definition at line 24 of file P5toP4JacobianPhiThetaEM2PxPyPzE.h.

{}

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

• P5toP4JacobianPhiThetaEM2PxPyPzE.h
• P5toP4JacobianPhiThetaEM2PxPyPzE.cxx