Eta-eta' mixing in U(3) chiral perturbation theory

Details Eta-eta' mixing in U(3) chiral perturbation theory Eta-eta' mixing in U(3) chiral perturbation theory

2001-07-16

arxiv.org/abs/hep-ph/0107175v1

Eur.Phys.J.A11:329-339,2001

Physics

High Energy Physics

High Energy Physics - Phenomenology

22 pages

Scientific paper

10.1007/s100500170072

We investigate eta-eta' mixing in infrared regularized U(3) chiral
perturbation theory by calculating the eta and eta' masses up to one-loop
order. From this analysis it becomes obvious that even at leading order
eta-eta' mixing does not obey the usually assumed one-mixing angle scheme if
large N_c counting rules are not employed.

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