Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Leptonic Decay Constants of $D_{s}$ and $B_{s}$ Mesons at Finite
  Temperature   In the present work, $D_{s}$ and $B_{s}$ meson parameters are investigated in
the framework of thermal QCD sum rules. The temperature dependence of the mass
and the leptonic decay constants are investigated by using Borel transform sum
rules and Hilbert moment sum rules. To increase sensitivity, the vacuum
contributions are subtracted from thermal expressions and the temperature
dependences of the leptonic decay constants and meson masses are studied.

12
The categories of this paper are: nucl-th
21
The categories of this paper are: adap-org
11
The categories of this paper are: hep-lat
26
The categories of this paper are: bayes-an
16
The categories of this paper are: stat
33
The categories of this paper are: plasm-ph
32
The categories of this paper are: atom-ph
29
The categories of this paper are: funct-an
13
The categories of this paper are: quant-ph
7
The categories of this paper are: hep-th
28
The categories of this paper are: alg-geom
35
The categories of this paper are: mtrl-th
25
The categories of this paper are: patt-sol
37
The categories of this paper are: supr-con
18
The categories of this paper are: econ
6
The categories of this paper are: astro-ph