Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Radiative corrections in K --> pi l+ l- decays   We calculate radiative corrections to the flavor-changing neutral current
process K --> pi l+ l-, both for charged and neutral kaon decays. While the
soft-photon approximation is shown to work well for the muon channels, we
discuss the necessity of further phase space cuts with electrons in the final
state. It is also shown how to transfer our results to other decays such as eta
--> gamma l+ l- or omega --> pi0 l+ l-.

18
The categories of this paper are: econ
2
The categories of this paper are: math
26
The categories of this paper are: bayes-an
23
The categories of this paper are: solv-int
15
The categories of this paper are: nucl-ex
31
The categories of this paper are: ao-sci
36
The categories of this paper are: cmp-lg
19
The categories of this paper are: eess
33
The categories of this paper are: plasm-ph
6
The categories of this paper are: astro-ph
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The categories of this paper are: nlin
28
The categories of this paper are: alg-geom
35
The categories of this paper are: mtrl-th
12
The categories of this paper are: nucl-th
34
The categories of this paper are: chem-ph
20
The categories of this paper are: acc-phys