Can the Higgs sector contribute significantly to the muon anomalous magnetic moment?

Details Can the Higgs sector contribute significantly to the muon anomalous magnetic moment? Can the Higgs sector contribute significantly to the muon anomalous magnetic moment?

2001-02-23

arxiv.org/abs/hep-ph/0102297v3

JHEP 0105:006,2001

Physics

High Energy Physics

High Energy Physics - Phenomenology

16 pages, 1 figure, JHEP style, typographical errors and one reference corrected, a new footnote, paragraph and one new refere

Scientific paper

10.1088/1126-6708/2001/05/006

A light CP-even Higgs boson (h) with a mass of about 10 GeV could explain the recent BNL measurement of the muon anomalous magnetic moment, in the framework of a general CP-conserving two-Higgs-doublet extension of the Standard Model with no tree-level flavor-changing neutral Higgs couplings. However, the allowed Higgs mass window is quite small and the corresponding model parameters are very constrained. The Higgs sector can contribute significantly to the observed BNL result for g-2 without violating known experimental constraints only if the hZZ coupling (approximately) vanishes and m_h lies between the Upsilon mass and 2m_B.

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