Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Radiative corrections to the Dalitz plot of K_{l3}^\pm decays:
  Contribution of the four-body region   We calculate the radiative corrections to the Dalitz plot of K_{l3}^\pm
decays to order (alpha/pi)(q/M_1), where q is the momentum transfer and M_1 is
the mass of the kaon. We restrict the analysis to the so-called four-body
region, which arises when no discrimination of real photons is made either
kinematically or experimentally. We present our results in two ways: the first
one with the triple integration over the photon kinematical variables ready to
be performed numerically and the second one in a fully analytical form. Our
results can be useful in experimental analyses of the Dalitz plot, by
evaluating the model-independent coefficients of the quadratic products of the
form factors; we provide some numbers as a case example. We find a small,
albeit non-negligible, contribution from the four-body region to the radiative
correction to the total decay rate of K_{l3}^\pm decays.

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The categories of this paper are: cs
35
The categories of this paper are: mtrl-th
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The categories of this paper are: adap-org
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The categories of this paper are: cond-mat
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The categories of this paper are: q-alg
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The categories of this paper are: bayes-an
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The categories of this paper are: econ
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The categories of this paper are: stat
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The categories of this paper are: chao-dyn
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The categories of this paper are: plasm-ph
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The categories of this paper are: hep-ex
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The categories of this paper are: cmp-lg
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The categories of this paper are: solv-int
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The categories of this paper are: eess
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The categories of this paper are: math
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The categories of this paper are: astro-ph