Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Ratios of vector and pseudoscalar $B$ meson decay constants in the
  light-cone quark model   We study the decay constants of pseudoscalar and vector $B$ meson in the
framework of light-cone quark model (LCQM). We apply the variational method to
the relativistic Hamiltonian with the Gaussian-type trial wave function to
obtain the values of $\beta$ (scale parameter). Then with the help of known
values of constituent quark masses, we obtain the numerical results for the
decay constants $f_P$ and $f_V$, respectively. We compare our numerical results
with the existing experimental data.

10
The categories of this paper are: q-bio
6
The categories of this paper are: astro-ph
3
The categories of this paper are: physics
11
The categories of this paper are: hep-lat
26
The categories of this paper are: bayes-an
8
The categories of this paper are: hep-ex
15
The categories of this paper are: nucl-ex
34
The categories of this paper are: chem-ph
37
The categories of this paper are: supr-con
9
The categories of this paper are: nlin
14
The categories of this paper are: math-ph
32
The categories of this paper are: atom-ph
19
The categories of this paper are: eess
35
The categories of this paper are: mtrl-th
25
The categories of this paper are: patt-sol
4
The categories of this paper are: cond-mat