The chiral limit of QCD and above
arXiv:hep-ph/0501009 · doi:10.1016/j.nuclphysa.2005.03.139
Abstract
I review aspects of chiral dynamics pertinent to the structure of baryons and few-nucleon systems, such as chiral extrapolations for the nucleon and the delta mass, double pion photoproduction off protons, single neutral pion electroproduction off the deuteron, pion photoproduction in the delta region, the quark mass dependence of the nuclear forces and the possibility of an infrared limit cycle in QCD.
10 pages, 5 figures, plenary talk at BARYONS 2004, Paris, Oct. 25-29, to be published in the proceedings