Chiral Algebra, Chiral Breakdown, andξParameter ofKl3Decay
- 11 January 1971
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 26 (2), 104-107
- https://doi.org/10.1103/physrevlett.26.104
Abstract
Using hard-meson current algebra with single meson dominance of currents and the commutator, it is deduced that (a) the mesons must occur in nonets, and (b) chiral symmetry is broken by only terms (which then implies a small parameter). Recent calculations which obtain a large negative with only (3,) terms are seen to imply a violation of the current-algebra constraints. However, the large experimental can be obtained by including additional nonpole breaking terms.
Keywords
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