Gray, A. et al. (2003) The Upsilon spectrum from lattice QCD with 2+1 flavors of dynamical quarks. Nuclear Physics, Section B, Proceedings Supplements, 119, 592 -594. (doi: 10.1016/S0920-5632(03)01631-1)
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Publisher's URL: http://dx.doi.org/10.1016/S0920-5632(03)01631-1
Abstract
We describe the bottomonium spectrum obtained on the MILC configurations which incorporate 2+1 flavors of dynamical quarks. We compare to quenched and 2 flavor results also on MILC configurations. We show that the lattice spacing determination using different quantities shows clear signs of convergence with 2+1 flavors and give results for the leptonic width and hyperfine splitting, in the form of the ratio of the 1st excited state of the Upsilon to that of the ground state.
Item Type: | Articles |
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Status: | Published |
Refereed: | Yes |
Glasgow Author(s) Enlighten ID: | Follana, Dr Eduardo and Shigemitsu, Prof Junko and Davies, Professor Christine |
Authors: | Gray, A., Davies, C., Alford, M., Follana, E.,, Hein, J., Lepage, G.P., Mason, Q., Nobes, M., Shigemitsu, J., Trottier, H., and Wingate, M. |
Subjects: | Q Science > QC Physics |
College/School: | College of Science and Engineering > School of Physics and Astronomy |
Journal Name: | Nuclear Physics, Section B, Proceedings Supplements |
Publisher: | Elsevier BV |
ISSN: | 0920-5632 |
ISSN (Online): | 1873-3832 |
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