The HelicityVertex class is designed to store the helicity amplitude expression for the matrix element for use by the spin correlation algorithm.
It implements the storage of the pointers to the incoming and outgoing particles at the vertex and virtual methods for calculating the rho and D matrices. The concrete implementations of the vertices for specific processes, eg production or decay, inherit from this and implement the storage of the matrix element together with the set and get methods.
These methods are then called by the SpinInfo class to perform the calculations.
- See also
- Peter Richardson
Definition at line 41 of file HelicityVertex.h.