出版社:SISSA, Scuola Internazionale Superiore di Studi Avanzati
摘要:We present a preliminary calculation of the charmonium spectrum using the dynamical 2+1 flavor
243 ×64 domain wall fermion lattice configurations generated by the RBC and UKQCD
collaborations. We use the relativistic heavy quark action with 3 parameters non-perturbatively
determined by matching to experimental quantities. Chiral extrapolation is done on four light sea
quark masses from 0.005 to 0.03, with ms=0.04 and mres=0.003. We can either predict meson
masses assuming the lattice spacing is known from other methods, or calculate the lattice spacing
using those quantities.