Physics – High Energy Physics – High Energy Physics - Lattice
Scientific paper
2006-10-19
PoS LAT2006:083,2006
Physics
High Energy Physics
High Energy Physics - Lattice
7 pp., contribution to Lattice 2006 (Electroweak Decays and Mixing)
Scientific paper
The heavy-quark expansion for inclusive semi-leptonic B decays introduces $\bar{\Lambda}$ and $\lambda_1$, 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, $m_b$, using $\bar{\Lambda}$ and $\lambda_1$ for the $B_s$ meson from a 2+1 sea-flavor unquenched calculation.
de Water Ruth S. Van
for the Fermilab Lattice Collaboration with the MILC Collaborati
Freeland Elizabeth D.
Kronfeld Andreas S.
Simone James N.
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