Bottom-Hadron Mass Splittings from Static-Quark Action on 2+1-Flavor Lattices
arXiv:0905.4120 · doi:10.1103/PhysRevD.80.054027
Abstract
We calculate bottom-hadron mass splittings with respect to and using full QCD with 2+1 flavors of dynamical Kogut-Susskind sea quarks and domain-wall valence quarks along with a static heavy quark. Our lattices have spatial volume of with lattice spacing about 0.124 fm and a range of pion masses as low as 291 MeV. Our results are in agreement with experimental observations and other lattice calculations within our statistical and systematic errors. In particular, we find the mass of the to be consistent with the recent CDF measurement. We also predict the mass for the as yet unobserved to be 5955(27) MeV.
12 pages, 6 figures, 6 tables; corrected typo in D0 Omega-b mass, corrected some experimental background in introduction
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