Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Testing the molecular nature of $\bm{D_{s 0}^{\ast}(2317)}$ and
  $\bm{D_{0}^{\ast} (2400)}$ in semileptonic $\bm{B_s}$ and $\bm{B}$ decays   We study the semileptonic $B_s$ and $B$ decays into the $D_{s 0}^{\ast}
(2317)$ and $D_{0}^{\ast} (2400)$ resonances, respectively. With the help of a
chiral unitarity model in coupled channels we compute the ratio of the decay
widths of both processes. Using current values of the width for the
$\bar{B}^{0} \to D_{0}^{\ast} (2400)^{+} \bar{\nu}_{l} l^{-}$ decay we make
predictions for the rate of the $\bar{B}_{s}^{0} \to D_{s0}^{\ast} (2317)^{+}
\bar{\nu}_{l} l^{-}$ decay.

17
The categories of this paper are: q-fin
27
The categories of this paper are: comp-gas
29
The categories of this paper are: funct-an
4
The categories of this paper are: cond-mat
31
The categories of this paper are: ao-sci
14
The categories of this paper are: math-ph
8
The categories of this paper are: hep-ex
26
The categories of this paper are: bayes-an
13
The categories of this paper are: quant-ph
10
The categories of this paper are: q-bio
20
The categories of this paper are: acc-phys
9
The categories of this paper are: nlin
3
The categories of this paper are: physics
7
The categories of this paper are: hep-th
6
The categories of this paper are: astro-ph
35
The categories of this paper are: mtrl-th