Photino and Gluino Production in SQED and SQCD

TL;DR

This paper reviews photino and gluino phenomenology, addresses computational challenges with Majorana fermions, and calculates production cross sections for these particles in supersymmetric theories.

Contribution

It introduces a new method for calculating Feynman amplitudes involving Majorana fermions without using charge conjugation matrices.

Findings

Derived cross sections for photino and gluino production

Proposed a prescription for fermion flow in Feynman diagrams

Reviewed historical context of photino-gluino phenomenology

Abstract

This review starts out with a brief history of the photino-gluino phenomenology. Next, it describes difficulties encountered in the construction of Feynman amplitudes when dealing with Majorana fermions and outlines a procedure that circumvents this difficulty by means of a prescription based on a well-defined fermion flow without explicit charge-conjugation matrices at the vertex equations. Finally, as an illustration, it calculates the cross section for the production of photinos and gluinos.