出版社：SISSA, Scuola Internazionale Superiore di Studi Avanzati
摘要：This is a follow-up to our earlier work [1, 2, 3] 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 now 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 Bs meson.
The calculation is carried out with dynamical fermions on a 163£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.
