Physics – High Energy Physics – High Energy Physics - Lattice
Scientific paper
2010-07-09
AIP Conf.Proc.1296:294-297,2010
Physics
High Energy Physics
High Energy Physics - Lattice
4 pages, 4 figures. To appear in proceedings of the XI HADRON PHYSICS, March, 21 - 26, 2010, Maresias Beach, S\~ao Paulo, Braz
Scientific paper
10.1063/1.3523189
We report preliminary results for charmonium-nucleon potential $V_{c\bar{c} N}(r)$ from quenched lattice QCD, which is calculated from the equal-time Bethe-Salpeter amplitude through the effective Schr\"odinger equation. Our simulations are performed at a lattice cutoff of $1/a$=2.0 GeV in a spatial volume of $(3\;\text{fm})^3$ with the nonperturbatively $O(a)$ improved Wilson action for the light quarks and a relativistic heavy quark action for the charm quark. We have found that the potential $V_{c\bar{c} N}(r)$ is weakly attractive at short distance and exponentially screened at long distance.
Kawanai Taichi
Sasaki Shoichi
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