On the choice between strong and neutral PCAC
- 1 October 1981
- journal article
- Published by IOP Publishing in Journal of Physics G: Nuclear Physics
- Vol. 7 (10), 1325-1329
- https://doi.org/10.1088/0305-4616/7/10/009
Abstract
The two chiral-symmetry-breaking schemes of strong and neutral PCAC are contrasted, but each are shown to be self-consistent theoretical pictures. At the present time, however, it would appear that the phenomenological values of the pi N sigma term and Goldberger-Trieman discrepancy favour the neutral PCAC approach.Keywords
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