Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Muon pair production via $e^{+}e^{-}$ annihilation in the presence of a
  circularly polarized laser field   In this paper, we have investigated the elementary particle reaction ${e}^{+}
{e}^{-} \rightarrow{\mu}^{+} {\mu}^{-}$ that results from the electron-positron
interaction, at the leading order, with an intense laser wave of circular
polarization. We have derived, by annalytical means, the laser-assisted
differential cross section expression by using the scattering matrix approach.
We have analyzed the energy and the number of exchanged photons dependence of
muon pair production in electron-positron annihilation at different centre of
mass energies including the $Z$-boson peak. For this reason, a wide range of
high centre of mass energies relevant to future $e^{+}e^{-}$ collider were
covered to study the cross section behavior. We have found that, for a given
number of exchanged photons, laser field strength and frequency, the circularly
polarized laser field decreases the total cross section by several orders of
magnitudes.

33
The categories of this paper are: plasm-ph
10
The categories of this paper are: q-bio
13
The categories of this paper are: quant-ph
32
The categories of this paper are: atom-ph
14
The categories of this paper are: math-ph
26
The categories of this paper are: bayes-an
29
The categories of this paper are: funct-an
30
The categories of this paper are: q-alg
11
The categories of this paper are: hep-lat
21
The categories of this paper are: adap-org
7
The categories of this paper are: hep-th
6
The categories of this paper are: astro-ph
20
The categories of this paper are: acc-phys
16
The categories of this paper are: stat
12
The categories of this paper are: nucl-th
36
The categories of this paper are: cmp-lg