Radiative Gamma decays and a light pseudoscalar Higgs in the NMSSM - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Journal of High Energy Physics Année : 2009

Radiative Gamma decays and a light pseudoscalar Higgs in the NMSSM

Florian Domingo
  • Fonction : Auteur
Ulrich Ellwanger
  • Fonction : Auteur
Esteban Fullana
  • Fonction : Auteur
Miguel-Angel Sanchis-Lozano
  • Fonction : Auteur

Résumé

We 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.

Dates et versions

hal-00335450 , version 1 (29-10-2008)

Identifiants

Citer

Florian Domingo, Ulrich Ellwanger, Esteban Fullana, Cyril Hugonie, Miguel-Angel Sanchis-Lozano. Radiative Gamma decays and a light pseudoscalar Higgs in the NMSSM. Journal of High Energy Physics, 2009, 01, pp.061. ⟨10.1088/1126-6708/2009/01/061⟩. ⟨hal-00335450⟩
143 Consultations
0 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More