6533b829fe1ef96bd1289a92
RESEARCH PRODUCT
Old and new physics interpretations of the NuTeV anomaly
Sacha DavidsonSacha DavidsonPaolo GambinoAlessandro StrumiaAlessandro StrumiaStefano ForteNuria Riussubject
Quantum chromodynamicsPhysicsNuclear and High Energy PhysicsParticle physicsGauge bosonMuonPhysics beyond the Standard ModelAstrophysics::High Energy Astrophysical PhenomenaHigh Energy Physics::PhenomenologyPropagatorFísicaFOS: Physical sciencesHigh Energy Physics - PhenomenologyHigh Energy Physics - Phenomenology (hep-ph)IsospinHigh Energy Physics::ExperimentAnomaly (physics)BosonParticle Physics - Phenomenologydescription
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).
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2001-12-21 |