Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Mixing and lifetime of B-meson using Coulomb plus power potential   The investigation of mixing phenomena and lifetime in neutral B meson systems
provides an important testing ground for standard model flavour dynamics.
Spectroscopic parameters has been used to calculate the pseudoscalar decay
constant and predictions of mixing mass parameters and lifetimes of the B$_{d}$
and B$_{s}$ mesons.

20
The categories of this paper are: acc-phys
6
The categories of this paper are: astro-ph
34
The categories of this paper are: chem-ph
13
The categories of this paper are: quant-ph
11
The categories of this paper are: hep-lat
22
The categories of this paper are: chao-dyn
8
The categories of this paper are: hep-ex
23
The categories of this paper are: solv-int
30
The categories of this paper are: q-alg
18
The categories of this paper are: econ
2
The categories of this paper are: math
21
The categories of this paper are: adap-org
14
The categories of this paper are: math-ph
3
The categories of this paper are: physics
15
The categories of this paper are: nucl-ex
17
The categories of this paper are: q-fin