Duerr, Stephan and Fodor, Zoltan and Hoelbling, Christian and Krieg, Stefan and Lellouch, Laurent and Lippert, Thomas and Rae, Thomas and Schaefer, Andreas and Scholz, Enno E. and Szabo, Kalman K. and Varnhorst, Lukas (2017) Leptonic decay-constant ratio f(kappa)/f(pi) from lattice QCD using 2+1 clover-improved fermion flavors with 2-HEX smearing. PHYSICAL REVIEW D, 95 (5): 054513. ISSN 2470-0010, 2470-0029
Full text not available from this repository. (Request a copy)Abstract
We present a calculation of the leptonic decay-constant ratio f(kappa)/f(pi) in 2+1 flavor QCD. Our data set includes five lattice spacings and pion masses reaching down below the physical one. Special emphasis is placed on a careful study of all systematic uncertainties, especially the continuum extrapolation. Our result is perfectly compatible with the first-row unitarity constraint of the Standard Model.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | FINITE-VOLUME; COMPUTATION; MASSES; QUARK; |
| Subjects: | 500 Science > 530 Physics |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 14 Dec 2018 13:00 |
| Last Modified: | 25 Feb 2019 12:30 |
| URI: | https://pred.uni-regensburg.de/id/eprint/188 |
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