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Chiral symmetry breaking and the sigma-term in pion-nucleon scattering

Conference · · AIP Conf. Proc.; (United States)
OSTI ID:5584280

One of the most important test grounds of current algebra and PCAC and recently of chiral perturbation theory of QCD is low energy pion-nucleon scattering. A crucial number is the pion-nucleon sigma-term, which is a measure of explicit chiral-symmetry breaking of QCD due to the quark mass term in the QCD Lagrangian.

Research Organization:
Kernforschungszentrum Karlsruhe, Institut fuer Kernphysik und Universitaet Karlsruhe, Institut fuer Experimentelle Kernphysik, Postfach 3640, D 7500 Karlsruhe 1
OSTI ID:
5584280
Report Number(s):
CONF-8708102-
Journal Information:
AIP Conf. Proc.; (United States), Journal Name: AIP Conf. Proc.; (United States) Vol. 163:1; ISSN APCPC
Country of Publication:
United States
Language:
English