The new (g-2) for muon measurement and limits on the light Higgs bosons in 2HDM (II)

dc.creatorKrawczyk, Maria
dc.date2001-03-20
dc.date2001-10-01
dc.date.accessioned2026-07-07T03:44:13Z
dc.date.available2026-07-07T03:44:13Z
dc.descriptionWe discuss how new data for a_{mu}= (g-2)_{mu}/2 improve constraints on new physics. Using two types of estimations of a_{mu}^{had} (Davier & H"{o}cker (case A) and Jegerlehner2000 (case B)) we evaluate 95% CL intervals for a new contribution, which can be used to constrain any model beyond the Standard Model. We apply these intervals to the general 2HDM ("Model II"), where up to now one light neutral Higgs particle, h or A, was allowed by the data. Assuming that only one Higgs boson contributes to a_{mu}^{2HDM} the two-loop calculation based on the case A leads to the exclusion of scalar $h$ while a pseudoscalar with mass between 10 and 70 GeV (for tan beta > 20) is allowed. For case B the upper limits for tan beta for both scalar and pseudoscalar are obtained.
dc.descriptionLatex file (Revtex4), 15 pages, 5 ps and 6 eps figures, two-loop results added, updated references
dc.identifierhttps://arxiv.org/abs/hep-ph/0103223
dc.identifierhttp://arxiv.org/abs/hep-ph/0103223
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/40472
dc.subjectHigh Energy Physics - Phenomenology
dc.titleThe new (g-2) for muon measurement and limits on the light Higgs bosons in 2HDM (II)
dc.typetext

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