Bornyakov, V. G. and Horsley, R. and Nakamura, Y. and Perlt, H. and Pleiter, D. and Rakow, P. E. L. and Schierholz, G. and Schiller, A. and Stueben, H. and Zanotti, J. M. (2017) Flavour breaking effects in the pseudoscalar meson decay constants. PHYSICS LETTERS B, 767. pp. 366-373. ISSN 0370-2693, 1873-2445
Full text not available from this repository. (Request a copy)Abstract
The SU(3) flavour symmetry breaking expansion in up, down and strange quark masses is extended from hadron masses to meson decay constants. This allows a determination of the ratio of kaon to pion decay constants in QCD. Furthermore when using partially quenched valence quarks the expansion is such that SU(2) isospin breaking effects can also be determined. It is found that the lowest order SU( 3) flavour symmetry breaking expansion (or Gell-Mann-Okubo expansion) works very well. Simulations are performed for 2 + 1 flavours of clover fermions at four lattice spacings. (C) 2017 The Author(s). Published by Elsevier B.V.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | ; |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Theroretical Physics > Chair Professor Schäfer > Group Dirk Pleiter |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 14 Dec 2018 13:10 |
| Last Modified: | 15 Feb 2019 12:51 |
| URI: | https://pred.uni-regensburg.de/id/eprint/1041 |
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