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Flavour breaking effects in the pseudoscalar meson decay constants
Bornyakov, V. G., Horsley, R., Nakamura, Y., Perlt, H., Pleiter, D., Rakow, P. E. L., Schierholz, G., Schiller, A., Stüben, H. and Zanotti, J. M.
(2017)
Flavour breaking effects in the pseudoscalar meson decay constants.
Physics Letters B 2017 (767), pp. 366-373.
Date of publication of this fulltext: 27 Apr 2018 10:05
Article
DOI to cite this document: 10.5283/epub.37237
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( ...
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.
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Details
| Item type | Article | ||||
| Journal or Publication Title | Physics Letters B | ||||
| Publisher: | ELSEVIER SCIENCE BV | ||||
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| Open Access Type: | SCOAP3 | ||||
| Place of Publication: | AMSTERDAM | ||||
| Volume: | 2017 | ||||
| Number of Issue or Book Chapter: | 767 | ||||
| Page Range: | pp. 366-373 | ||||
| Date | 14 February 2017 | ||||
| Additional Information (public) | SCOAP3 | ||||
| Institutions | Physics > Institute of Theroretical Physics > Chair Professor Schäfer > Group Dirk Pleiter | ||||
| Identification Number |
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| Keywords | ; | ||||
| Dewey Decimal Classification | 500 Science > 530 Physics | ||||
| Status | Published | ||||
| Refereed | Yes, this version has been refereed | ||||
| Created at the University of Regensburg | Yes | ||||
| URN of the UB Regensburg | urn:nbn:de:bvb:355-epub-372373 | ||||
| Item ID | 37237 |
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