出版社：SISSA, Scuola Internazionale Superiore di Studi Avanzati
摘要：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.
