Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Lattice QCD study of $B_s\to D_s \ell \bar\nu_\ell$ decay near zero
  recoil   We study the hadronic matrix elements describing the $B_s \to D_s\ell
\bar\nu_\ell$ decay in and beyond the Standard Model. By using the twisted mass
QCD on the lattice with $N_f=2$ dynamical flavors we compute the normalization
$\mathscr G_s(1)$ of the form factor dominating $B_s\to D_s \ell \bar\nu_\ell$
in the SM. We also make the first lattice determination of $F_0(q^2)/F_+(q^2)$
and $F_T(q^2)/F_+(q^2)$ near zero recoil (near $q^2_{\rm max}$). We briefly
discuss the non-strange case $B \to D\ell \bar\nu_\ell$ as well.

15
The categories of this paper are: nucl-ex
13
The categories of this paper are: quant-ph
4
The categories of this paper are: cond-mat
24
The categories of this paper are: dg-ga
14
The categories of this paper are: math-ph
6
The categories of this paper are: astro-ph
10
The categories of this paper are: q-bio
9
The categories of this paper are: nlin
3
The categories of this paper are: physics
12
The categories of this paper are: nucl-th
20
The categories of this paper are: acc-phys
19
The categories of this paper are: eess
17
The categories of this paper are: q-fin
16
The categories of this paper are: stat
28
The categories of this paper are: alg-geom
34
The categories of this paper are: chem-ph