Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Lorentz violation, Gravitoelectromagnetism and Bhabha Scattering at
  finite temperature   Gravitoelectromagnetism (GEM) is an approach for the gravitation field that
is described using the formulation and terminology similar to that of
electromagnetism. The Lorentz violation is considered in the formulation of GEM
that is covariant in its form. In practice such a small violation of the
Lorentz symmetry may be expected in a unified theory at very high energy. In
this paper a non-minimal coupling term, which exhibits Lorentz violation, is
added as a new term in the covariant form. The differential cross section for
Bhabha scattering in the GEM framework at finite temperature is calculated that
includes Lorentz violation. The Thermo Field Dynamics (TFD) formalism is used
to calculate the total differential cross section at finite temperature. The
contribution due to Lorentz violation is isolated from the total cross section.
It is found to be small in magnitude.

3
The categories of this paper are: physics
18
The categories of this paper are: econ
32
The categories of this paper are: atom-ph
33
The categories of this paper are: plasm-ph
5
The categories of this paper are: gr-qc
9
The categories of this paper are: nlin
31
The categories of this paper are: ao-sci
24
The categories of this paper are: dg-ga
8
The categories of this paper are: hep-ex
20
The categories of this paper are: acc-phys
25
The categories of this paper are: patt-sol
26
The categories of this paper are: bayes-an
21
The categories of this paper are: adap-org
30
The categories of this paper are: q-alg
36
The categories of this paper are: cmp-lg
13
The categories of this paper are: quant-ph