A theoretical determination of the eta-eta' mixing

Details A theoretical determination of the eta-eta' mixing A theoretical determination of the eta-eta' mixing

2009-01-19

arxiv.org/abs/0901.2860v2

JHEP 0905:043,2009

Physics

High Energy Physics

High Energy Physics - Phenomenology

12 pages, 2 figures; reference to the two-mixing-angle scheme added, minor corrections; to appear in JHEP

Scientific paper

10.1088/1126-6708/2009/05/043

The systematic large N_c limit within chiral perturbation provides an optimal
eta-eta' mixing angle of about -27 degrees at leading order in p^2. In this
frame, agreement with the data can be reached with higher order corrections of
about 20%.

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