2002/02/28 by Johan Bijnens, Juerg Gasser · 1 citation
Physics and Astronomy · #hep-ph
paper · pdf · doi:10.1238/physica.topical.099a00034
published as Phys.Scripta T99 (2002) 34-44 · Talks presented at the Workshop on Eta Physics, Angstrom laboratory, Uppsala, October 25-27, 2001; published version (Physica Scripta Topical Issues T99 (2002) 34). Typos corrected, conclusions unchanged. 31 pages
arxiv created 2002/08/18 · arxiv updated 2009/11/30
An overview is given of Chiral Perturbation Theory and various applications to eta decays. In particular, the main decay η→3π is discussed at the one-loop level, and estimates of the higher order corrections are given. The importance of p6 and higher order effects in double Dalitz and η→π0γγ decays is pointed out. In all these cases the need for new experimental results is stressed.