Potentials of quark-anti-quark pairs are studied from the q¯-q Nambu-Bethe-Salpeter (NBS) wave functions in quenched lattice QCD. With the use of a method which has been recently developed in the derivation of nuclear forces from QCD, we derive the q¯-q potentials with finite quark masses from the NBS wave functions. We calculate the q¯-q NBS wave functions in pseudo-scalar and vector channels for several quark masses. The derived potentials in both channels reveal linear confinement plus Coulomb potentials. We also discuss the quark-mass and channel dependence of the q¯-q potentials.
|Journal||Proceedings of Science|
|Publication status||Published - Jan 1 2010|
|Event||28th International Symposium on Lattice Field Theory, Lattice 2010 - Villasimius, Sardinia, Italy|
Duration: Jun 14 2010 → Jun 19 2010
All Science Journal Classification (ASJC) codes