ar X iv : h ep - l at / 0 61 01 08 v 1 1 9 O ct 2 00 6 Λ̄ , λ 1 and m b in three - flavor ( lattice ) QCD
نویسندگان
چکیده
The heavy-quark expansion for inclusive semi-leptonic B decays introduces Λ̄ and λ1, 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 Λ̄ and λ1 for the Bs meson from a 2+1 sea-flavor unquenched calculation.
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تاریخ انتشار 2006