Affordable Access

deepdyve-link deepdyve-link
Publisher Website

Intermediate vector boson selfenergies from a strong electroweak sector

Authors
  • Casalbuoni, R.
  • De Curtis, S.
  • Dominici, D.
  • Feruglio, F.
  • Gatto, Raoul
Publication Date
Jan 01, 1991
Identifiers
DOI: 10.1016/0370-2693(91)91225-K
OAI: oai:inspirehep.net:305482
Source
INSPIRE-HEP
Keywords
License
Unknown
External links

Abstract

We calculate the self-energies of the intermediate vector bosons from an effective lagrangian describing possible strongly interacting vector and axial-vector bosons, deduced on the basis of electromagnetic gauge invariance and SU (2) custodial symmetry. Comparison with the standard low-energy parametrization of such self-energies suggests an isospin conserving contribution, called S according to the usual notation, which in principle could also take a negative value, within the permitted range of the model parameters. Technifermion loops in technicolor theories give positive S . Atomic parity experiments indicate a negative central value for S but are affected by large errors and one has to wait for future more accurate determinations.

Report this publication

Statistics

Seen <100 times