Journal Article

FZJ-2017-04066

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Flavour breaking effects in the pseudoscalar meson decay constants

Bornyakov, V. G. ; Horsley, R. (Corresponding author) ; Nakamura, Y. ; Perlt, H. ; Pleiter, D.FZJ* ; Rakow, P. E. L. ; Schierholz, G.DESY* ; Schiller, A. ; Stüben, H. ; Zanotti, J. M.

2017
North-Holland Publ. Amsterdam

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Please use a persistent id in citations: http://hdl.handle.net/2128/14660  doi:10.1016/j.physletb.2017.02.018

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+12+1 flavours of clover fermions at four lattice spacings.

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Contributing Institute(s):

1. Jülich Supercomputing Center (JSC)

Research Program(s):

1. 511 - Computational Science and Mathematical Methods (POF3-511) (POF3-511)

Appears in the scientific report 2017

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Database coverage:
; ; ; ; ; Current Contents - Physical, Chemical and Earth Sciences ; DOAJ Seal ; Ebsco Academic Search ; IF < 5 ; JCR ; Nationallizenz ; SCOPUS ; Science Citation Index ; Science Citation Index Expanded ; Thomson Reuters Master Journal List ; Web of Science Core Collection

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