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Fermions, Anomaly and Unitarity in High-Energy Electroweak Scattering

Guida, R. and Konishi, K. and Magnoli, N. (1994) Fermions, Anomaly and Unitarity in High-Energy Electroweak Scattering. International Journal of Modern Physics A, 9 (6). ISSN 1793-656X

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We report the "state of the art" of the problem of $B+L$ violation in high-energy electroweak scatterings. Results of various analyses point toward (though do not prove rigorously yet) the "half-suppression", i.e., that the $B+L$ violating cross section remains suppressed at least by the negative exponent of the single instanton action, at all energies. Most interesting techniques developed in this field are reviewed. Particular attention is paid to unitarity constraints on the anomalous cross section, and to some conceptual problem involving the use of the optical theorem in the presence of instantons.

Item Type: Article
Additional Information: Imported from arXiv
Subjects: Area02 - Scienze fisiche > FIS/02 - Fisica teorica, modelli e metodi matematici
Divisions: Dipartimenti (from 2013) > DIPARTIMENTO DI FISICA
Depositing User: dott.ssa Sandra Faita
Date Deposited: 11 Feb 2014 13:23
Last Modified: 11 Feb 2014 13:23
URI: http://eprints.adm.unipi.it/id/eprint/1653

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