Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Implication of the HyperCP boson $X^0$ (214 MeV) in the flavour changing
  neutral current processes   We analyze the inclusive $b(c) \to s(u) \mu^+ \mu^-$ and the exclusive
$B(D^+) \to K(\pi^+) \mu^+ \mu^-$ flavour changing neutral current decays in
the light of HyperCP boson $X^0$ of mass 214 MeV recently observed in the
hyperon decay $\Sigma^+ \to p \mu^+ \mu^-$. Using the branching ratio data of
the above inclusive and exclusive decays, we obtain constraints on $g_1 (h_1)$
and $g_2 (h_2)$, the scalar and pseudo-scalar coupling constants of the
$b-s-X^0 (c-u-X^0)$ vertices.

8
The categories of this paper are: hep-ex
20
The categories of this paper are: acc-phys
21
The categories of this paper are: adap-org
11
The categories of this paper are: hep-lat
14
The categories of this paper are: math-ph
30
The categories of this paper are: q-alg
33
The categories of this paper are: plasm-ph
26
The categories of this paper are: bayes-an
15
The categories of this paper are: nucl-ex
35
The categories of this paper are: mtrl-th
24
The categories of this paper are: dg-ga
3
The categories of this paper are: physics
19
The categories of this paper are: eess
27
The categories of this paper are: comp-gas
36
The categories of this paper are: cmp-lg
1
The categories of this paper are: cs