Radiative Upsilon decays and a light pseudoscalar Higgs in the NMSSM

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dc.creatorDomingo, Florian
dc.creatorEllwanger, Ulrich
dc.creatorFullana, Esteban
dc.creatorHugonie, Cyril
dc.creatorSanchis-Lozano, Miguel-Angel
dc.date2008-10-27
dc.date2009-01-05
dc.date.accessioned2026-07-07T12:35:26Z
dc.date.available2026-07-07T12:35:26Z
dc.descriptionWe study possible effects of a light CP-odd Higgs boson on radiative Upsilon decays in the Next-to-Minimal Supersymmetric Standard Model. Recent constraints from CLEO on radiative Upsilon(1S) decays are translated into constraints on the parameter space of CP-odd Higgs boson masses and couplings, and compared to constraints from B physics and the muon anomalous magnetic moment. Possible Higgs - eta_b(nS) mixing effects are discussed, notably in the light of the recent measurement of the eta_b(1S) mass by Babar: The somewhat large Upsilon(1S) - eta_b(1S) hyperfine splitting could easily be explained by the presence of a CP-odd Higgs boson with a mass in the range 9.4 - 10.5 GeV. Then, tests of lepton universality in inclusive radiative Upsilon decays can provide a visible signal in forthcoming experimental data.
dc.description20 pages, 11 Figs, references corrected
dc.identifierhttps://arxiv.org/abs/0810.4736
dc.identifierhttp://arxiv.org/abs/0810.4736
dc.identifierJHEP 0901:061,2009
dc.identifierdoi:10.1088/1126-6708/2009/01/061
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/217764
dc.subjectHigh Energy Physics - Phenomenology
dc.titleRadiative Upsilon decays and a light pseudoscalar Higgs in the NMSSM
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