Braun, V. M. and Burch, T. and Gattringer, C. and Goeckeler, Meinulf and Lacagnina, G. and Schaefer, S. and Schaefer, Andreas (2003) Lattice calculation of vector meson couplings to the vector and tensor currents using chirally improved fermions. PHYSICAL REVIEW D, 68 (5): 054501. ISSN 0556-2821
Full text not available from this repository.Abstract
We present a quenched lattice calculation of f(V)(perpendicular to)/f(V), the coupling of vector mesons to the tensor current normalized by the vector meson decay constant. The chirally improved lattice Dirac operator, which allows us to reach small quark masses, is used. We put emphasis on analyzing the quark mass dependence of f(V)(perpendicular to)/f(V) and find only a rather weak dependence. Our results at the rho and phi masses agree well with QCD sum rule calculations and those from previous lattice studies.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | GINSPARG-WILSON FERMIONS; NONPERTURBATIVE RENORMALIZATION; ASYMPTOTIC-BEHAVIOR; EXCLUSIVE PROCESSES; QCD; OPERATORS; |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Theroretical Physics > Chair Professor Schäfer > Group Andreas Schäfer |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 29 Jul 2021 11:19 |
| Last Modified: | 29 Jul 2021 11:19 |
| URI: | https://pred.uni-regensburg.de/id/eprint/38701 |
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