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Título

Radiative Gamma decays and a light pseudoscalar Higgs in the NMSSM

AutorDomingo, F.; Ellwanger, U.; Fullana, Esteban ; Hugonie, C.; Sanchís Lozano, Miguel Ángel
Palabras claveHiggs physics
B-Physics
Supersymmetric standard model
Fecha de publicación22-ene-2009
EditorInstitute of Physics Publishing
CitaciónJHEP 0901:061,2009
ResumenWe study possible effects of a light CP-odd Higgs boson on radiative Gamma decays in the Next-to-Minimal Supersymmetric Standard Model. Recent constraints from CLEO on radiative Gamma(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 Gamma(IS) - 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 Gamma decays can provide a visible signal in forthcoming experimental data.
Descripción20 pages, 11 Figs.-- ISI article identifier:000265578400061.-- ArXiv pre-print avaible at:http://fr.arxiv.org/abs/0810.4736
Versión del editorhttp://dx.doi.org/10.1088/1126-6708/2009/01/061
URIhttp://hdl.handle.net/10261/15855
DOI10.1088/1126-6708/2009/01/061
ISSN1126-6708
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