Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Study of B-meson decays to eta_c K^(*), eta_c(2S) K^(*) and eta_c gamma
  K^(*)   We study two-body $B$-meson decays to a charmonium state ($\eta_c$,
$\eta_c(2S)$ or $h_c$) and a $K^+$ or $K^{*0}(892)$ meson using a sample of
$349 fb^{-1}$ of data collected with the BABAR detector at the PEP-II
asymmetric-energy $B$ Factory at SLAC. We measure $BR(B^0\to\eta_c
K^{*0})=(5.7\pm0.6 (stat)\pm0.9 (syst))\times 10^{-4}$, $BR(B^0\to\eta_c(2S)
K^{*0})<3.9\times 10^{-4}$, $BR(B^+\to h_c K^+)\times
BR(h_c\to\eta_c\gamma)<4.8\times 10^{-5}$ and $BR(B^0\to h_c K^{*0})\times
BR(h_c\to\eta_c\gamma)<2.2\times 10^{-4}$ at the 90% C.L., and
$BR(\eta_c(2S)\to K \bar{K} \pi)=(1.9\pm0.4 (stat) \pm1.1 (syst))%$. We also
measure the mass and width of the $\eta_c$ meson to be $m(\eta_c)=(2985.8\pm
1.5(stat) \pm 3.1 (syst)) MeV/c^2$ and $\Gamma(\eta_c)=(36.3^{+3.7}_{-3.6}
(stat) \pm 4.4 (syst)) MeV$.

15
The categories of this paper are: nucl-ex
22
The categories of this paper are: chao-dyn
26
The categories of this paper are: bayes-an
3
The categories of this paper are: physics
17
The categories of this paper are: q-fin
2
The categories of this paper are: math
35
The categories of this paper are: mtrl-th
16
The categories of this paper are: stat
6
The categories of this paper are: astro-ph
18
The categories of this paper are: econ
11
The categories of this paper are: hep-lat
28
The categories of this paper are: alg-geom
12
The categories of this paper are: nucl-th
7
The categories of this paper are: hep-th
21
The categories of this paper are: adap-org
24
The categories of this paper are: dg-ga