Problems related to fermions, unitarity and chiral anomaly in high energy electroweak interactions, are investigated. Particular attention is paid to the correct functional integration over fermion fields in the background of instanton-antiinstanton type configurations. This leads to an expansion of correlation functions in terms of a small parameter, rho/R, when the instanton-antiinstanton separation (R) is large compared to their sizes (rho). Applying such a method to widely discussed cases of fermion-number violation in the electroweak theory, we conclude that there is no theoretical basis for expecting anomalous cross sections to become observable at energies in the 10 TeV region.

AVALANCHE IN THE VALLEY (FERMIONS, ANOMALY AND UNITARITY IN HIGH-ENERGY ELECTROWEAK INTERACTIONS)

KONISHI, KENICHI
1993-01-01

Abstract

Problems related to fermions, unitarity and chiral anomaly in high energy electroweak interactions, are investigated. Particular attention is paid to the correct functional integration over fermion fields in the background of instanton-antiinstanton type configurations. This leads to an expansion of correlation functions in terms of a small parameter, rho/R, when the instanton-antiinstanton separation (R) is large compared to their sizes (rho). Applying such a method to widely discussed cases of fermion-number violation in the electroweak theory, we conclude that there is no theoretical basis for expecting anomalous cross sections to become observable at energies in the 10 TeV region.
1993
Guida, R; Konishi, Kenichi
File in questo prodotto:
Non ci sono file associati a questo prodotto.

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11568/28021
 Attenzione

Attenzione! I dati visualizzati non sono stati sottoposti a validazione da parte dell'ateneo

Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus ND
  • ???jsp.display-item.citation.isi??? 6
social impact