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.
Available under License Creative Commons Attribution Non-commercial Share Alike.
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|
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|Deposited On:||15 Aug 2008 16:47|
|Last Modified:||20 May 2011 16:04|
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