Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Potential description of the charmonium from lattice QCD   We present spin-independent and spin-spin interquark potentials for
charmonium states, that are calculated using a relativistic heavy quark action
for charm quarks on the PACS-CS gauge configurations generated with the Iwasaki
gauge action and 2+1 flavors of Wilson clover quark. The interquark potential
with finite quark masses is defined through the equal-time Bethe-Salpeter
amplitude. The light and strange quark masses are close to the physical point
where the pion mass corresponds to $M_\pi \approx 156(7)$ MeV, and charm quark
mass is tuned to reproduce the experimental values of $\eta_c$ and $J/\psi$
states. Our simulations are performed with a lattice cutoff of $a^{-1}\approx
2.2$ GeV and a spatial volume of $(3 {\rm fm})^3$. We solve the nonrelativistic
Schr\"odinger equation with resulting charmonium potentials as theoretical
inputs. The resultant charmonium spectrum below the open charm threshold shows
a fairly good agreement with experimental data of well-established charmonium
states.

20
The categories of this paper are: acc-phys
14
The categories of this paper are: math-ph
23
The categories of this paper are: solv-int
4
The categories of this paper are: cond-mat
24
The categories of this paper are: dg-ga
12
The categories of this paper are: nucl-th
6
The categories of this paper are: astro-ph
34
The categories of this paper are: chem-ph
16
The categories of this paper are: stat
29
The categories of this paper are: funct-an
31
The categories of this paper are: ao-sci
37
The categories of this paper are: supr-con
25
The categories of this paper are: patt-sol
33
The categories of this paper are: plasm-ph
36
The categories of this paper are: cmp-lg
17
The categories of this paper are: q-fin