This title appears in the Scientific Report :
2017
Please use the identifier:
http://dx.doi.org/10.1016/j.physletb.2017.02.018 in citations.
Please use the identifier: http://hdl.handle.net/2128/14660 in citations.
Flavour breaking effects in the pseudoscalar meson decay constants
Flavour breaking effects in the pseudoscalar meson decay constants
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...
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Personal Name(s): | Bornyakov, V. G. |
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Horsley, R. (Corresponding author) / Nakamura, Y. / Perlt, H. / Pleiter, Dirk / Rakow, P. E. L. / Schierholz, G. / Schiller, A. / Stüben, H. / Zanotti, J. M. | |
Contributing Institute: |
Jülich Supercomputing Center; JSC |
Published in: | Physics letters / B, 767 (2017) S. 366 - 373 |
Imprint: |
Amsterdam
North-Holland Publ.
2017
|
DOI: |
10.1016/j.physletb.2017.02.018 |
Document Type: |
Journal Article |
Research Program: |
Computational Science and Mathematical Methods |
Link: |
OpenAccess OpenAccess |
Publikationsportal JuSER |
Please use the identifier: http://hdl.handle.net/2128/14660 in citations.
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+12+1 flavours of clover fermions at four lattice spacings. |