Isospin-symmetry breaking in electroweak theories

Thomas Appelquist, Mark J. Bowick, Eugene Cohler, Avi I. Hauser

Research output: Contribution to journalArticlepeer-review

18 Scopus citations


The breaking of isospin symmetry in the electroweak theory with a dynamical Higgs sector is analyzed. The natural size of the breaking in various amplitudes is estimated, given that the breaking is very large in the fermion mass matrix. Special attention is paid to the parameter ρMW2MZ2cos2θW. Hypercolor models are then investigated. There it is noted that ρ-1 will naturally exhibit a sensitive, linear dependence on the fermion-doublet mass splittings.

Original languageEnglish (US)
Pages (from-to)1523-1526
Number of pages4
JournalPhysical Review Letters
Issue number16
StatePublished - 1984
Externally publishedYes

ASJC Scopus subject areas

  • General Physics and Astronomy


Dive into the research topics of 'Isospin-symmetry breaking in electroweak theories'. Together they form a unique fingerprint.

Cite this