Bernard, C. and DeTar, C. and Di Pierro, M. and El-Khadra, A. X. and Evans, R. T. and Freeland, E. D. and Gamiz, E. and Gottlieb, Steven and Heller, U. M. and Hetrick, J. E. and Kronfeld, A. S. and Laiho, J. and Levkova, L. and Mackenzie, P. B. and Simone, J. N. and Sugar, R. and Toussaint, D. and Van de Water, R. S. (2011) Tuning Fermilab heavy quarks in 2+1 flavor lattice QCD with application to hyperfine splittings. PHYSICAL REVIEW D, 83 (3): 034503. ISSN 2470-0010, 2470-0029
Full text not available from this repository. (Request a copy)Abstract
We report the nonperturbative tuning of parameters-kappa(c), kappa(b), and kappa(crit)-that are related to the bare heavy-quark mass in the Fermilab action. This requires the computation of the masses of D-s(*) B-s(*) and mesons comprised of a Fermilab heavy quark and a staggered light quark. Additionally, we report the hyperfine splittings for D-s(*) and B-s(*) mesons as a cross-check of our simulation and analysis methods. We find a splitting of 145 +/- 15 MeV for the D-s system and 40 +/- 9 MeV for the Bs system. These are in good agreement with the Particle Data Group average values of 143: 9 +/- 0: 4 MeV and 46: 1 +/- 1.5 MeV, respectively. The calculations are carried out with the MILC 2 + 1 flavor gauge configurations at three lattice spacings a approximate to 0: 15, 0.12, and 0.09 fm.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | STAGGERED LIGHT QUARKS; GAUGE-THEORIES; PERTURBATION-THEORY; CONTINUUM-LIMIT; FERMIONS; SYMMETRY; SIMULATIONS; COMPUTATION; SPECTRUM; DECAYS; |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Theroretical Physics |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 25 Jun 2020 10:03 |
| Last Modified: | 25 Jun 2020 10:03 |
| URI: | https://pred.uni-regensburg.de/id/eprint/21255 |
Actions (login required)
 |
View Item |
