出版社：SISSA, Scuola Internazionale Superiore di Studi Avanzati
摘要：The heavy-quark expansion for inclusive semi-leptonic B decays introduces L¯ and l1, which are
matrix elements in heavy-quark effective field theory. We review how they can be obtained from
an analysis of the heavy quark mass dependence of heavy-light meson masses in lattice QCD.We
present preliminary results for the bottom quark mass, mb, using L¯ and l1 for the Bs meson from
a 2+1 sea-flavor unquenched calculation.
