Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: B_q -> l^+ l^- gamma decays in light cone QCD   The radiative dileptonic decays B_s(B_d) -> l^+ l^- gamma (l = e, mu) are
investigated within the Standard Model . The transition formfactors are
calculated in the framework of the light cone QCD sum rules method and it is
found that the branching ratios are B(B_s -> e^+ e^- gamma) =2.35 x 10^(-9),
B(B_s -> mu^+ mu^- gamma) =1.9 x 10^(-9), B(B_d -> e^+ e^- gamma) = 1.5 x
10^(-10) and B(B_d -> \mu^+ \mu^- gamma) = 1.2 x 10^(-10). A comparison of our
results with the constituent quark model predictions on the branching ratios is
presented.

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The categories of this paper are: bayes-an
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The categories of this paper are: math-ph
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The categories of this paper are: econ
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The categories of this paper are: cond-mat
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The categories of this paper are: nlin
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The categories of this paper are: quant-ph
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The categories of this paper are: astro-ph
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The categories of this paper are: solv-int
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The categories of this paper are: comp-gas
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The categories of this paper are: cmp-lg
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The categories of this paper are: chao-dyn
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The categories of this paper are: nucl-th
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The categories of this paper are: hep-lat
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The categories of this paper are: adap-org
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The categories of this paper are: funct-an
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The categories of this paper are: patt-sol