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EigenP4JacobianPxPyPzE2PxPyPzM Class Reference

#include <EigenP4JacobianPxPyPzE2PxPyPzM.h>

Inheritance diagram for EigenP4JacobianPxPyPzE2PxPyPzM:
Collaboration diagram for EigenP4JacobianPxPyPzE2PxPyPzM:

Public Member Functions

 EigenP4JacobianPxPyPzE2PxPyPzM (double px, double py, double pz, double E)
 
 ~EigenP4JacobianPxPyPzE2PxPyPzM ()
 

Detailed Description

Definition at line 10 of file EigenP4JacobianPxPyPzE2PxPyPzM.h.

Constructor & Destructor Documentation

◆ EigenP4JacobianPxPyPzE2PxPyPzM()

EigenP4JacobianPxPyPzE2PxPyPzM::EigenP4JacobianPxPyPzE2PxPyPzM ( double  px,
double  py,
double  pz,
double  E 
)

Definition at line 10 of file EigenP4JacobianPxPyPzE2PxPyPzM.cxx.

13  :
14  AmgMatrix(4,4)()
15 {
16  double pt2 = px*px + py*py;
17  double p2 = pt2 + pz*pz;
18  double M = std::sqrt( std::max( 0., E*E - p2));
19  this->setZero();
20 
21  (*this)(0,0) = 1; // dpx/dpx
22  (*this)(1,1) = 1; // dpy/dpy
23  (*this)(2,2) = 1; // dpz/dpz
24 
25  (*this)(3,0) = -px/M; // dM/dpx
26  (*this)(3,1) = -py/M; // dM/dpy
27  (*this)(3,2) = -pz/M; // dM/dpz
28  (*this)(3,3) = E/M; // dM/dE
29 }

◆ ~EigenP4JacobianPxPyPzE2PxPyPzM()

EigenP4JacobianPxPyPzE2PxPyPzM::~EigenP4JacobianPxPyPzE2PxPyPzM ( )
inline

Definition at line 14 of file EigenP4JacobianPxPyPzE2PxPyPzM.h.

14 {}

The documentation for this class was generated from the following files:
test_pyathena.px
px
Definition: test_pyathena.py:18
max
#define max(a, b)
Definition: cfImp.cxx:41
AmgMatrix
#define AmgMatrix(rows, cols)
Definition: EventPrimitives.h:51
Amg::pz
@ pz
Definition: GeoPrimitives.h:40
Amg::py
@ py
Definition: GeoPrimitives.h:39
VP1PartSpect::E
@ E
Definition: VP1PartSpectFlags.h:21