Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Photino and Gluino Production in SQED and SQCD   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.

9
The categories of this paper are: nlin
24
The categories of this paper are: dg-ga
31
The categories of this paper are: ao-sci
5
The categories of this paper are: gr-qc
27
The categories of this paper are: comp-gas
14
The categories of this paper are: math-ph
19
The categories of this paper are: eess
10
The categories of this paper are: q-bio
26
The categories of this paper are: bayes-an
21
The categories of this paper are: adap-org
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The categories of this paper are: astro-ph
1
The categories of this paper are: cs
12
The categories of this paper are: nucl-th
33
The categories of this paper are: plasm-ph
8
The categories of this paper are: hep-ex
37
The categories of this paper are: supr-con