Hard Pion Chiral Perturbation Theory: What is it and is it relevant for $η^\prime$ decays?

Details Hard Pion Chiral Perturbation Theory: What is it and is it relevant for $η^\prime$ decays? Hard Pion Chiral Perturbation Theory: What is it and is it relevant for $η^\prime$ decays?

2011-10-27

arxiv.org/abs/1110.6004v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

4 pages, Talk presented at the PrimeNet meeting, Meson Physics in Low-Energy QCD, September 26 - 28, 2011, Forschungszentrum J

Scientific paper

In this talk I give a short introduction to hard pion Chiral Perturbation
Theory and an overview of the available applications $K\to\pi\pi$, $B,D\to
D,\pi,K,\eta$ semileptonic decays and $\chi_{c0,2}\to\pi\pi,KK$. It is pointed
out that the reults for the semileptonic decays obey the LEET relation between
$f_+$ and $f_-$.

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