Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Final state emission radiative corrections to the process $e^+e^- \to
  \pi^+\pi^-(\gamma)$. Contribution to muon anomalous magnetic moment   Analytic calculation are presented of the contribution to the anomalous
magnetic moment of a muon from the channels of annihilation of an
electron-positron pair to a pair of charged pi-mesons with radiative correction
connected with the final state, as well as corrections to the lowest order
kernel. The result with point-like pi-meson assumptions is
$a_{point}=a_{point}^{(1)}+\Delta a_{point}$, $a_{point}^{(1)}=7.0866 \cdot
10^{-9}; \Delta a_{point}= -2.4 \cdot 10^{-10} .$ Taking into account the pion
form factor in the frames of the Nambu-Jona-Lasinio (NJL) approach leads to
$a_{NJL}=a_{NJL}^{(1)}+\Delta a_{NJL}$, $a_{NJL}^{(1)}= 5.48\cdot 10^{-8};
\Delta a_{NJL}=-3.43\cdot 10^{-9}$.

14
The categories of this paper are: math-ph
17
The categories of this paper are: q-fin
13
The categories of this paper are: quant-ph
30
The categories of this paper are: q-alg
12
The categories of this paper are: nucl-th
9
The categories of this paper are: nlin
18
The categories of this paper are: econ
36
The categories of this paper are: cmp-lg
7
The categories of this paper are: hep-th
25
The categories of this paper are: patt-sol
37
The categories of this paper are: supr-con
21
The categories of this paper are: adap-org
26
The categories of this paper are: bayes-an
4
The categories of this paper are: cond-mat
15
The categories of this paper are: nucl-ex
33
The categories of this paper are: plasm-ph