Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Masses and Decay constants of Heavy Flavour mesons in perturbative
  approach   Determination of the wave-function is very essential in the calculation of
static and dynamic properties like masses,decay constants of pseudo-scalar
mesons and masses of vector mesons.We use Dalgarno's perturbation theory and
Variation-ally Improved Perturbation Theory (VIPT) to solve Schrodinger
equation in a QCD inspired potential model wuth Cornell potential,which
consists linear and coulomb potential.We use both the options like Columbic
parent firstly and then linear parent while using the VIPT method. Comparison
of both these methods and also with experimental results are done in the
calculation of masses and decay constants.

34
The categories of this paper are: chem-ph
4
The categories of this paper are: cond-mat
10
The categories of this paper are: q-bio
16
The categories of this paper are: stat
31
The categories of this paper are: ao-sci
11
The categories of this paper are: hep-lat
15
The categories of this paper are: nucl-ex
32
The categories of this paper are: atom-ph
23
The categories of this paper are: solv-int
13
The categories of this paper are: quant-ph
3
The categories of this paper are: physics
30
The categories of this paper are: q-alg
8
The categories of this paper are: hep-ex
17
The categories of this paper are: q-fin
25
The categories of this paper are: patt-sol
6
The categories of this paper are: astro-ph