Sneutrino-Antisneutrino Mixing and Neutrino Mass in Anomaly--mediated Supersymmetry Breaking Scenario

Abstract

In supersymmetric models with nonzero Majorana neutrino mass, the sneutrino and antisneutrino mix, which may lead to same sign dilepton signals in future collider experiments. We point out that the anomaly-mediated supersymmetry breaking scenario has a good potential to provide an observable rate of such signals for the neutrino masses suggested by the atmospheric and solar neutrino oscillations. The sneutrino mixing rate is naturally enhanced by m_{3/2}/m_{\tildeν}={\cal O}(4π/α) while the sneutrino decay rate is small enough on a sizable portion of the parameter space. We point out also that the sneutrino-antisneutrino mixing can provide much stronger information on some combinations of the neutrino masses and mixing angles than neutrino experiments.

Revtex, 13 pages, 2 figures

References in corpus (2)

• Supersymmetry and the Anomalous Anomalous Magnetic Moment of the Muon
• Probing the messenger of supersymmetry breaking by the muon anomalous magnetic moment

Cited by in corpus (13)

• Neutrino-less Double Beta Decay and Particle Physics
• Neutrinos and Collider Physics
• Consequences of DM/antiDM Oscillations for Asymmetric WIMP Dark Matter
• Seesaw mechanism in the sneutrino sector and its consequences
• Novel constraints on $\Delta L=1$ interactions from neutrino masses
• Signals of sneutrino-antisneutrino mixing in an $e^{-}\gamma$ collider in anomaly-mediated supersymmetry breaking
• Lepton number violation in heavy Higgs decays to sneutrinos
• Correlations between sneutrino oscillations and signatures at the LHC in anomaly-mediated supersymmetry breaking
• One-loop contribution to the neutrino mass matrix in NMSSM with right-handed neutrinos and tri-bimaximal mixing
• Ultrarelativistic sneutrinos at the LHC and sneutrino-antisneutrino oscillation
• Anomaly mediated supersymmetry breaking and its test in linear colliders
• Sneutrino-antisneutrino oscillation at the Tevatron
• Correlations between sneutrino-antisneutrino oscillations and signatures at the LHC in anomaly-mediated supersymmetry breaking