Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Form Factors and Differential Branching Ratio of $B \to K \mu^+ \mu^-$
  in AdS/QCD   The light-front distribution amplitudes (LFDAs) and the decay constant of the
$K $ pseudoscalar meson are extracted within the framework of the AdS/QCD
correspondence. For the LFDAs calculation, we consider a momentum-dependent
(dynamical) helicity wave function which contains the dynamical spin effects.
We use the LFDAs to predict the transition form factors of the semileptonic
$B\to K \ell^{+}\ell^{-}$ decay. With the help of these form factors, the
differential branching ratio of the $B\to K\, \mu^+ \mu^-$ on $q^2$ is plotted.
A comparison is made between our prediction in AdS/QCD and the results obtained
from two models including the light-cons sum rules (LCSR) and lattice QCD as
well as the experimental values.

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The categories of this paper are: dg-ga
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The categories of this paper are: eess
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The categories of this paper are: funct-an
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The categories of this paper are: cmp-lg
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The categories of this paper are: cs
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The categories of this paper are: ao-sci
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The categories of this paper are: acc-phys
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The categories of this paper are: comp-gas
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The categories of this paper are: supr-con
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The categories of this paper are: physics
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The categories of this paper are: q-bio
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The categories of this paper are: atom-ph
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The categories of this paper are: nlin
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The categories of this paper are: alg-geom
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The categories of this paper are: math
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The categories of this paper are: patt-sol