Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Short Distance Coefficients and the Vanishing of the Lepton Asymmetry in
  $B\to V\ell^+\ell^-$   We derive a condition the short distance coefficients governing $b\to
(s,d)\ell^+\ell^-$ transitions must satisfy in order for the forward-backward
asymmetry to vanish in the exclusive modes $B\to (K^*,\rho)\ell^+\ell^-$. This
relation, which is satisfied in the standard model, involves the coefficient
entering in $b\to s\gamma$ transitions as well as one of the additional Wilson
coefficients present in the leptonic modes. We show that the resulting relation
is largely free of hadronic uncertainties, thus constituting a reliable test of
the standard model in exclusive rare B decays.

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The categories of this paper are: gr-qc
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The categories of this paper are: bayes-an
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The categories of this paper are: math
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The categories of this paper are: q-fin
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The categories of this paper are: math-ph
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The categories of this paper are: cond-mat
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The categories of this paper are: funct-an
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The categories of this paper are: q-alg
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The categories of this paper are: patt-sol
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The categories of this paper are: cs
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The categories of this paper are: cmp-lg
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The categories of this paper are: acc-phys
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The categories of this paper are: alg-geom
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The categories of this paper are: nucl-th
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The categories of this paper are: physics
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The categories of this paper are: comp-gas