Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Differential branching fractions and isospin asymmetries of $B \to
  K^{(*)}\mu^{+}\mu^{-}$ decays   The isospin asymmetries of $B \to K\mu^+\mu^-$ and $B \to K^{*}\mu^+\mu^-$
decays and the partial branching fractions of the $B^0 \to K^0\mu^+\mu^-$, $B^+
\to K^+\mu^+\mu^-$ and $B^+ \to K^{*+}\mu^+\mu^-$ decays are measured as
functions of the dimuon mass squared, $q^2$. The data used correspond to an
integrated luminosity of 3$~$fb$^{-1}$ from proton-proton collisions collected
with the LHCb detector at centre-of-mass energies of 7$\,$TeV and 8$\,$TeV in
2011 and 2012, respectively. The isospin asymmetries are both consistent with
the Standard Model expectations. The three measured branching fractions, while
individually consistent, all favour lower values than their respective Standard
Model predictions.

36
The categories of this paper are: cmp-lg
22
The categories of this paper are: chao-dyn
32
The categories of this paper are: atom-ph
3
The categories of this paper are: physics
5
The categories of this paper are: gr-qc
13
The categories of this paper are: quant-ph
9
The categories of this paper are: nlin
29
The categories of this paper are: funct-an
28
The categories of this paper are: alg-geom
27
The categories of this paper are: comp-gas
11
The categories of this paper are: hep-lat
23
The categories of this paper are: solv-int
18
The categories of this paper are: econ
21
The categories of this paper are: adap-org
26
The categories of this paper are: bayes-an
37
The categories of this paper are: supr-con