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B_s meson excited states from the lattice

Green, A.M.; Ignatius, J.; Jahma, M.; Koponen, J.; McNeile, C. and Michael, C. (2005) B_s meson excited states from the lattice. In: XXIIIrd International Symposium on Lattice Field Theory, 25-30 July 2005, Trinity College, Dublin, Ireland.

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Abstract

This is a follow-up to our earlier work [Phys. Rev. D 65, 014512 (2002); Eur. Phys. J. C 28, 79 (2003); Phys. Rev. D 69, 094505 (2004)] for the energies and the charge (vector) and matter (scalar) distributions for S-wave states in a heavy-light meson, where the heavy quark is static and the light quark has a mass about that of the strange quark. We study the radial distributions of higher angular momentum states, namely P- and D-wave states. In nature the closest equivalent of this heavy-light system is the B_s meson. The calculation is carried out with dynamical fermions on a 16^3 times 32 lattice with a lattice spacing of about 0.10 fm generated with the non-perturbatively improved clover action. It is shown that several features of the energies and radial distributions are in qualitative agreement with what one expects from a simple one-body Dirac equation interpretation.

Item Type:Conference or Workshop Item (Paper)
Additional Information:LTH 676; arXiv Number: arXiv:hep-lat/0509161v1. Additional citation information: PoS LAT2005 (2005) 205. Article ID: 205. 6 pages.
Uncontrolled Keywords:S-wave; heavy-light meson; heavy quark; static; light quark; strange quark; radial distributions; higher angular momentum states; P-wave; D-wave; B_s meson; dynamical fermions; lattice; non-perturbatively; radial distributions; one-body Dirac equation
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:Copyright owned by the author(s) under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike Licence. The author(s) and right holder(s) of such contributions grant(s) to all users a free, irrevocable, worldwide, right of access to, and a license to copy, use, distribute, transmit and display the work publicly and to make and distribute derivative works, in any digital medium for any responsible purpose, subject to proper attribution of authorship (community standards, will continue to provide the mechanism for enforcement of proper attribution and responsible use of the published work, as they do now), as well as the right to make small numbers of printed copies for their personal use.
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Refereed:Yes
Status:Published
ID Code:396
Deposited On:15 Aug 2008 16:47
Last Modified:20 May 2011 16:04

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