Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Electromagnetic corrections to non-leptonic two-body B and D decays   We present analytic expressions to evaluate at O(alpha) the effects of
soft-photon emission, and the related virtual corrections, in non-leptonic
decays of the type B,D -> P1 P2, where P1 and P2 are scalar or pseudoscalar
particles. The phenomenological implications of these results are briefly
discussed. For B decays into charged pions the effects of soft-photon emission
are quite large: the corrections to the rates can easily exceed the 5% level if
tight cuts on the photon energy are applied.

13
The categories of this paper are: quant-ph
27
The categories of this paper are: comp-gas
23
The categories of this paper are: solv-int
21
The categories of this paper are: adap-org
12
The categories of this paper are: nucl-th
3
The categories of this paper are: physics
37
The categories of this paper are: supr-con
16
The categories of this paper are: stat
32
The categories of this paper are: atom-ph
10
The categories of this paper are: q-bio
36
The categories of this paper are: cmp-lg
20
The categories of this paper are: acc-phys
6
The categories of this paper are: astro-ph
35
The categories of this paper are: mtrl-th
30
The categories of this paper are: q-alg
2
The categories of this paper are: math