B_s meson excited states from the lattice



Collaboration, UKQCD, Green, AM, Ignatius, J, Jahma, M, Koponen, J, McNeile, C and Michael, C
(2005) B_s meson excited states from the lattice. .

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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: 6 pages, poster presented at Lattice 2005 (Heavy quarks)
Uncontrolled Keywords: hep-lat, hep-lat
Subjects: ?? QC ??
Divisions: Faculty of Science and Engineering > School of Physical Sciences > Mathematical Sciences
Depositing User: Symplectic Admin
Date Deposited: 15 Aug 2008 15:47
Last Modified: 28 Apr 2022 03:20
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URI: https://livrepository.liverpool.ac.uk/id/eprint/396