Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Calculation without IR divergence of the soft photon high energy limit
  of final state radiation for the process
  $e^{+}e^{-}\rightarrow\mu^{+}\mu^{-}\gamma$   In this paper it is shown that the final state radiation process
$e^{+}e^{-}\rightarrow\mu^{+}\mu^{-}\gamma$ at tree level is not associated
with any IR divergence in the soft photon high energy limit if the calculation
is done using a careful treatment of a certain distributional object (in fact,
a measure) arising from the Feynman amplitude for the process. Thus there need
be no "infrared catastrophe" associated with the process. It is shown that, in
fact, the cross section for the process vanishes in the soft photon high energy
limit.

11
The categories of this paper are: hep-lat
26
The categories of this paper are: bayes-an
12
The categories of this paper are: nucl-th
22
The categories of this paper are: chao-dyn
36
The categories of this paper are: cmp-lg
24
The categories of this paper are: dg-ga
31
The categories of this paper are: ao-sci
13
The categories of this paper are: quant-ph
33
The categories of this paper are: plasm-ph
2
The categories of this paper are: math
14
The categories of this paper are: math-ph
8
The categories of this paper are: hep-ex
16
The categories of this paper are: stat
32
The categories of this paper are: atom-ph
34
The categories of this paper are: chem-ph
15
The categories of this paper are: nucl-ex