Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Implications of a Large $B_s \rightarrow \mu^+ \mu^-$ Branching Fraction
  for the Minimal Supersymmetric Standard Model   Very recently, the CDF Collaboration reported the first non-zero measurement
of the $B_s \rightarrow \mu^+ \mu^-$ branching fraction. The central value of
this measurement is more than 5 times of that predicted in the Standard Model
and, if confirmed, would indicate the existence of new physics. We consider the
implications of this measurement for the specific case of the Minimal
Supersymmetric Standard Model (MSSM), and find that it requires large values of
$\tan \beta$ ($\gsim 30$) and favors moderate values for the masses of the
heavy higgs bosons ($m_A, m_H \sim 300-1200$ GeV). We also discuss the
implications of this measurement for neutralino dark matter, finding that
(within the MSSM) regions of parameter space in which the lightest neutralino
can efficiently annihilate through the pseudoscalar higgs resonance (the
$A$-funnel region) are favored.

11
The categories of this paper are: hep-lat
32
The categories of this paper are: atom-ph
30
The categories of this paper are: q-alg
35
The categories of this paper are: mtrl-th
20
The categories of this paper are: acc-phys
21
The categories of this paper are: adap-org
15
The categories of this paper are: nucl-ex
18
The categories of this paper are: econ
34
The categories of this paper are: chem-ph
37
The categories of this paper are: supr-con
3
The categories of this paper are: physics
22
The categories of this paper are: chao-dyn
23
The categories of this paper are: solv-int
16
The categories of this paper are: stat
17
The categories of this paper are: q-fin
25
The categories of this paper are: patt-sol