出版社：SISSA, Scuola Internazionale Superiore di Studi Avanzati
摘要：We use a relativistic highly improved staggered quark action to discretize charm quarks on the
lattice. We calculate the masses and the dispersion relation for heavy-heavy and heavy-light
meson states, and show that for lattice spacings below .1 fm, the discretization errors are at the
few percent level. We also discuss the prospects for accurate calculations at the few percent level
of fDs , fD, and the leptonic width of the y and f .
