Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Discrete Transformation of Baryon- and Lepton-Nonconserving Processes   We consider discrete transformations ($C, P, T$ and $CP$) of baryon- and
lepton-nonconserving processes. It has long been thought that values ($\pm 1,
\pm i$) form the correct set of fermionic arbitrary phases for discrete
transformations. In this paper we show that this idea is not generally true. In
order to count the number of fundamental fermions in a process, $F$ number has
been introduced. According to our evaluation for any operator which breaks
$B-L$ symmetry and violate $F$ number the set of values ($\pm 1, \pm i$) is not
the correct set of fermionic arbitrary phases, due to the fact that discrete
transformations of such operators will change by altering the fermionic phases
from $\pm 1$ to $\pm i$.

17
The categories of this paper are: q-fin
15
The categories of this paper are: nucl-ex
1
The categories of this paper are: cs
22
The categories of this paper are: chao-dyn
34
The categories of this paper are: chem-ph
10
The categories of this paper are: q-bio
30
The categories of this paper are: q-alg
5
The categories of this paper are: gr-qc
29
The categories of this paper are: funct-an
25
The categories of this paper are: patt-sol
31
The categories of this paper are: ao-sci
33
The categories of this paper are: plasm-ph
19
The categories of this paper are: eess
14
The categories of this paper are: math-ph
8
The categories of this paper are: hep-ex
27
The categories of this paper are: comp-gas