Using NRQCD b quarks and HISQ light, strange and charm quarks we have calculated B meson masses and B^*-B splittings. We quote results for a range of lattice spacings and sea quark masses, enabling controlled extrapolation to the physical point. Since the b quark masses and lattice spacing are fixed from the \Upsilon and other meson masses, this allows accurate, parameter-free tests of B, B_s, and B_c masses against experiment. We can also predict the mass of the B^*_c meson.
@article{arxiv.0911.2133,
title = {B spectroscopy with NRQCD and HISQ},
author = {Eric B. Gregory and Christine. T. H. Davies and Eduardo Follana and Elvira. Gamiz and Iain Kendall and G. Peter Lepage and Heechang Na and Junko Shigemitsu and Kit Y. Wong},
journal= {arXiv preprint arXiv:0911.2133},
year = {2010}
}
Comments
7 pages, 1 table, 5 figures, Contribution to the "XXVII International Symposium on Lattice Field Theory", July 26-31, 2009, Peking University, Beijing, China