Current Algebra and Non-Regge Behavior of Weak Amplitudes. II
- 25 May 1967
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 157 (5) , 1448-1457
- https://doi.org/10.1103/physrev.157.1448
Abstract
Certain weak amplitudes exhibit non-Reggeistic behavior. These amplitudes have fixed poles in the complex angular-momentum plane which have the dual property of allowing a sum rule of the Dashen-Gell-Mann-Fubini type to hold, although one might naively expect a superconvergence relation for this amplitude, and insuring that spin-one particle poles are reproduced correctly in the left-hand side of the sum rule. We demonstrate the existence of the fixed pole directly by comparing the sum rule with the Froissart-Gribov continuation to the complex plane. We also study some models which exhibit this behavior.
Keywords
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