arXiv subjects

Elizabeth D. Freeland

Publications and source records attributed to Elizabeth D. Freeland.

2 recordsLinked to original sources

arXiv2007

Heavy-Quark Masses from the Fermilab Method in Three-Flavor Lattice QCD

We report on heavy quark mass calculations using Fermilab heavy quarks. Lattice calculations of heavy-strange meson masses are combined with one-loop (automated) lattice perturbation theory to arrive at the quark mass. Mesons are constructed from Fermilab heavy quarks and staggered light quarks. We use the MILC ensembles at three lattice spacings and sea quark mass ratios of $m_{\rm u,d} / m_{\rm s} = 0.1$ to 0.4. Preliminary results for the bottom quark are given in the potential subtracted scheme.

hep-lat↗

arXiv2006

Lambda-bar, lambda_1 and m_b in three-flavor (lattice) QCD

The heavy-quark expansion for inclusive semi-leptonic B decays introduces $\barΛ$ and $λ_1$, 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 $\barΛ$ and $λ_1$ for the $B_s$ meson from a 2+1 sea-flavor unquenched calculation.

hep-lat↗