eta-eta' mixing from U_L(3) x U_R(3) Chiral Perturbation Theory

Details eta-eta' mixing from U_L(3) x U_R(3) Chiral Perturbation Theory eta-eta' mixing from U_L(3) x U_R(3) Chiral Perturbation Theory

1997-10-07

arxiv.org/abs/hep-ph/9710268v1

Phys.Lett. B419 (1998) 326-332

Physics

High Energy Physics

High Energy Physics - Phenomenology

LateX, 10 pages

Scientific paper

10.1016/S0370-2693(97)01507-4

We obtain explicit expressions for the \eta and \eta' masses and decay
constants using U_L(3) x U_R(3) chiral perturbation theory at next-to-leading
order in a combined expansion in p^2 and 1/Nc. A numerical fit of the
parameters appearing to this order of the expansion is also discussed.

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