Old and new physics interpretations of the NuTeV anomaly

Preprint

27 June 2002

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.hep-ph/0112302

Abstract

We discuss whether the NuTeV anomaly can be explained, compatibly with all other data, by QCD effects (maybe, if the strange sea is asymmetric, or there is a tiny violation of isospin), new physics in propagators or couplings of the vector bosons (not really), loops of supersymmetric particles (no), dimension six operators (yes, for one specific SU(2)-invariant operator), leptoquarks (not in a minimal way), extra U(1) gauge bosons (maybe: an unmixed Z' coupled to B-3L_mu also increases the muon g-2 by about 10^{-9} and gives a `burst' to cosmic rays above the GZK cutoff).

Keywords

SUPERSYMMETRIC PARTICLES
PHYSICS INTERPRETATIONS
TINY VIOLATION
NUTEV ANOMALY
NEW PHYSICS
COUPLINGS
BOSONS
QCD

All Related Versions

Version 1, 2001-12-21, ArXiv
Version 2, 2002-01-18, ArXiv
Version 3, 2002-03-01, ArXiv
Version 4, 2002-06-27, ArXiv
Published version: Journal of High Energy Physics, 2002 (2), 037.

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