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Excited B mesons from the lattice

Green, A.M.; Koponen, J.; Michael, C.; McNeile, C. and Thompson, G. (2004) Excited B mesons from the lattice. Physical Review D, 69 . Article Number: 094505. ISSN 1550-2368 (online); 1550-7998 (print)

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We determine the energies of the excited states of a heavy-light meson $Q\bar{q}$, with a static heavy quark and light quark with mass approximately that of the strange quark from both quenched lattices and with dynamical fermions. We are able to explore the energies of orbital excitations up to L=3, the spin-orbit splitting up to L=2 and the first radial excitation. These $b \bar{s}$ mesons will be very narrow if their mass is less than 5775 MeV -- the $BK$ threshold. We investigate this in detail and present evidence that the scalar meson (L=1) will be very narrow and that as many as 6 $b \bar{s}$ excited states will have energies close to the $BK$ threshold and should also be relatively narrow.

Item Type:Article
Additional Information:LTH 612. arXiv Number: arXiv:hep-lat/0312007v1. Additional citation information: PHYSICAL REVIEW D 69, 094505 (2004); 0556-2821/2004/69(9)/094505(7). 7 pages. Published 18 May 2004. Issue: May 2004.
Subjects:Q Science > QC Physics
Departments, Research Centres and Related Units:Academic Faculties, Institutes and Research Centres > Faculty of Science > Department of Mathematical Sciences
Publisher's Statement:©2004 The American Physical Society. Users are advised to view the Statement of Copyright Copyright 2008© by The American Physical Society, as it relates to the published version -
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ID Code:494
Deposited On:31 Oct 2008 11:25
Last Modified:20 May 2011 13:19

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