Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Observation of the decay $\overline{B_s^0} \rightarrow \chi_{c2} K^+ K^-
  $ in the $\varphi$ mass region   The $\overline{B_s^0} \rightarrow \chi_{c2} K^+ K^- $ decay mode is observed
and its branching fraction relative to the corresponding $\chi_{c1}$ decay
mode, in a $\pm 15 \textrm{MeV}/c^2$ window around the $\phi$ mass, is found to
be $\frac{\mathcal{B}(\overline{B_s^0} \rightarrow \chi_{c2} K^+ K^-) }{
\mathcal{B}(\overline{B_s^0} \rightarrow \chi_{c1} K^+ K^-)} = (17.1 \pm 3.1
\pm 0.4 \pm 0.9)\%,$ where the first uncertainty is statistical, the second
systematic and the third due to the knowledge of the branching fractions of
radiative $\chi_c$ decays. The decay mode $\overline{B_s^0} \rightarrow
\chi_{c1} K^+ K^- $ allows the $ B_s^0$ mass to be measured as $m(B_s^0) =
5366.83 \pm 0.25 \pm 0.27 \, \textrm{MeV}/c^2,$ where the first uncertainty is
statistical and the second systematic. A combination of this result with other
LHCb determinations of the $B_s^0$ mass is made.

37
The categories of this paper are: supr-con
4
The categories of this paper are: cond-mat
29
The categories of this paper are: funct-an
19
The categories of this paper are: eess
10
The categories of this paper are: q-bio
33
The categories of this paper are: plasm-ph
34
The categories of this paper are: chem-ph
26
The categories of this paper are: bayes-an
24
The categories of this paper are: dg-ga
7
The categories of this paper are: hep-th
12
The categories of this paper are: nucl-th
11
The categories of this paper are: hep-lat
0
The categories of this paper are: hep-ph
35
The categories of this paper are: mtrl-th
1
The categories of this paper are: cs
25
The categories of this paper are: patt-sol