Counting pions in the nucleon
arXiv:hep-ph/9512392 · doi:10.1016/0146-6410(96)00020-8
Abstract
The number of pions in the nucleon is a theoretical concept and its value is model dependent. It is, however, a useful tool to understand the pionic contribution to several nucleon observables such as electric charge radii, magnetic moments, axial charge, pion-nucleon coupling constant, amplitudes for electroexcitation of baryon resonances and electroproduction of pions above such resonances.
9 pages plain TeX, 6 figures included as uuencoded gzipped postscript file, no macros needed; (Talk presented by M. Rosina at the International School of Nuclear Physics, 17th Course, Erice, September 1995)