Z' Bosons, the NuTeV Anomaly, and the Higgs Boson Mass

Details Z' Bosons, the NuTeV Anomaly, and the Higgs Boson Mass Z' Bosons, the NuTeV Anomaly, and the Higgs Boson Mass

2009-03-13

arxiv.org/abs/0903.2497v1

Phys.Atom.Nucl.73:680-688,2010

Physics

High Energy Physics

High Energy Physics - Phenomenology

Scientific paper

10.1134/S1063778810040149

Fits to the precision electroweak data that include the NuTeV measurement are considered in family universal, anomaly free U(1) extensions of the Standard Model. In data sets from which the hadronic asymmetries are excluded, some of the Z' models can double the predicted value of the Higgs boson mass, from ~ 60 to ~ 120 GeV, removing the tension with the LEP II lower bound, while also modestly improving the chi-square confidence level. The effect of the Z' models on both the Higgs boson mass and the chi-square confidence level is increased when the NuTeV measurment is included in the fit. Both the original NuTeV data and a revised estimate by the PDG are considered.

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