Study of charmoniumnucleon interaction in lattice QCD
Abstract
We report preliminary results for charmoniumnucleon potential V_{cc̄N}(r) from quenched lattice QCD, which is calculated from the equaltime BetheSalpeter amplitude through the effective Schrödinger equation. Our simulations are performed at a lattice cutoff of 1/a = 2.0 GeV in a spatial volume of (3 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_{cc̄N}(r) is weakly attractive at short distance and exponentially screened at long distance.
 Publication:

XI Hadron Physics
 Pub Date:
 November 2010
 DOI:
 10.1063/1.3523189
 arXiv:
 arXiv:1007.1515
 Bibcode:
 2010AIPC.1296..294K
 Keywords:

 quantum chromodynamics;
 nucleonnucleon interactions;
 BetheSalpeter equation;
 quarks;
 12.38.Aw;
 13.75.Cs;
 11.10.St;
 14.65.Bt;
 General properties of QCD;
 Nucleonnucleon interactions;
 Bound and unstable states;
 BetheSalpeter equations;
 Light quarks;
 High Energy Physics  Lattice
 EPrint:
 4 pages, 4 figures. To appear in proceedings of the XI HADRON PHYSICS, March, 21  26, 2010, Maresias Beach, S\~ao Paulo, Brazil