Additional Fermion Families and Precision Electroweak Data

Preprint

17 August 1994

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.hep-ph/9408308

Abstract

The S,T, and U formalism for studying electroweak precision data has recently been updated to include the effects of new light physics and within this analysis the latest LEP and SLC data tightly constrain models of physics beyond the Standard Model. We re-examine the constraints on additional strong and weakly interacting fermion families in the light of these developments. We conclude that the precision data favour models with at least one fermion with a mass below 150GeV.

Keywords

PRECISION ELECTROWEAK DATA
ELECTROWEAK PRECISION
STUDYING ELECTROWEAK
ADDITIONAL FERMION
FERMION FAMILIES
STANDARD MODEL
PRECISION DATA

All Related Versions

Version 1, 1994-08-17, ArXiv
Published version: Physics Letters B, 340 (1-2), 81.

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