The muon g-2 discrepancy: errors or new physics?

dc.creatorPassera, M.
dc.creatorMarciano, W. J.
dc.creatorSirlin, A.
dc.date2008-09-24
dc.date.accessioned2026-07-07T13:00:01Z
dc.date.available2026-07-07T13:00:01Z
dc.descriptionAfter a brief review of the muon g-2 status, we discuss hypothetical errors in the Standard Model prediction that could explain the present discrepancy with the experimental value. None of them looks likely. In particular, an hypothetical increase of the hadroproduction cross section in low-energy e^+e^- collisions could bridge the muon g-2 discrepancy, but is shown to be unlikely in view of current experimental error estimates. If, nonetheless, this turns out to be the explanation of the discrepancy, then the 95% CL upper bound on the Higgs boson mass is reduced to about 130 GeV which, in conjunction with the experimental 114.4 GeV 95% CL lower bound, leaves a narrow window for the mass of this fundamental particle.
dc.description4 pages. Invited talk at 16th International Conference on Supersymmetry and the Unification of Fundamental Interactions (SUSY08), June 16-21 2008, Seoul, Korea
dc.identifierhttps://arxiv.org/abs/0809.4062
dc.identifierhttp://arxiv.org/abs/0809.4062
dc.identifierAIP Conf.Proc.1078:378-381,2009
dc.identifierdoi:10.1063/1.3051967
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/225749
dc.subjectHigh Energy Physics - Phenomenology
dc.titleThe muon g-2 discrepancy: errors or new physics?
dc.typetext

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