Burch, Tommy and Hagen, Christian and Lang, Christian B. and Limmer, Markus and Schaefer, Andreas (2009) Excitations of single-beauty hadrons. PHYSICAL REVIEW D, 79 (1): 014504. ISSN 1550-7998, 1550-2368
Full text not available from this repository.Abstract
In this work we study the predominantly orbital and radial excitations of hadrons containing a single heavy quark. We present meson and baryon mass splittings and ratios of meson decay constants ( e. g., f(Bs)/f(B) and f(B's)/f(Bs)) resulting from quenched and dynamical two-flavor configurations. Light quarks are simulated using the chirally improved lattice Dirac operator at valence masses as light as M-pi approximate to 350 MeV. The heavy quark is approximated by a static propagator, appropriate for the b quark on our lattices (1/a similar to 1-2 GeV). We also include some preliminary calculations of the O(1/m(Q)) kinetic corrections to the states, showing, in the process, a viable way of applying the variational method to three-point functions involving excited states. We compare our results with recent experimental findings.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | LATTICE GAUGE-THEORY; HEAVY-LIGHT MESONS; DECAY CONSTANTS; BAG MODEL; B-MESON; QCD; QUARK; SPECTROSCOPY; COUPLINGS; FERMIONS; |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Theroretical Physics > Chair Professor Schäfer > Group Andreas Schäfer |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 14 Oct 2020 04:44 |
| Last Modified: | 14 Oct 2020 04:44 |
| URI: | https://pred.uni-regensburg.de/id/eprint/29866 |
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