Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: New Physics in $B_{d,s}$-$\Bbar_{d,s}$ mixings and
  $B_{d,s}\to\mu^+\mu^-$ decays   A new way of probing new physics in the $B$ meson system is provided. We
define double ratios for the observables of $B_{d,s}$-$\Bbar_{d,s}$ mixings and
$B_{d,s}\to\mu^+\mu^-$ decays, and find simple relations between the
observables. By using the relations we predict the yet-to-be measured branching
ratio of $B_d\to\mu^+\mu^-$ to be $(0.809\sim1.03)\times 10^{-10}$, up to the
new physics models.

26
The categories of this paper are: bayes-an
7
The categories of this paper are: hep-th
11
The categories of this paper are: hep-lat
4
The categories of this paper are: cond-mat
5
The categories of this paper are: gr-qc
9
The categories of this paper are: nlin
27
The categories of this paper are: comp-gas
14
The categories of this paper are: math-ph
12
The categories of this paper are: nucl-th
30
The categories of this paper are: q-alg
22
The categories of this paper are: chao-dyn
16
The categories of this paper are: stat
24
The categories of this paper are: dg-ga
35
The categories of this paper are: mtrl-th
19
The categories of this paper are: eess
23
The categories of this paper are: solv-int