Lepton Dipole Moments in Supersymmetric Low-Scale Seesaw Models

Abstract

We study the anomalous magnetic and electric dipole moments of charged leptons in supersymmetric low-scale seesaw models with right-handed neutrino superfields. We consider a minimally extended framework of minimal supergravity, by assuming that CP violation originates from complex soft SUSY-breaking bilinear and trilinear couplings associated with the right-handed sneutrino sector. We present numerical estimates of the muon anomalous magnetic moment and the electron electric dipole moment (EDM), as functions of key model parameters, such as the Majorana mass scale mN and tan(β). In particular, we find that the contributions of the singlet heavy neutrinos and sneutrinos to the electron EDM are naturally small in this model, of order 10^{-27} - 10^{-28} e cm, and can be probed in the present and future experiments.

10 pages, 3 figures, minor revision, references added, to appear in Physical Review D

References in corpus (10)

• Observation of a new particle in the search for the Standard Model Higgs boson with the ATLAS detector at the LHC
• Observation of a new boson at a mass of 125 GeV with the CMS experiment at the LHC
• Right-Handed Neutrinos at LHC and the Mechanism of Neutrino Mass Generation
• Study of the mass and spin-parity of the Higgs boson candidate via its decays to Z boson pairs
• The Muon Magnetic Moment and Supersymmetry
• Electric Dipole Moments in the MSSM Reloaded
• Search for new physics in the multijet and missing transverse momentum final state in proton-proton collisions at sqrt(s) = 7 TeV
• Lepton Flavour Violation and theta(13) in Minimal Resonant Leptogenesis
• Hunt for new phenomena using large jet multiplicities and missing transverse momentum with ATLAS in 4.7 fb^-1 of sqrt(s) = 7 TeV proton-proton collisions
• Seesaw mechanism in the sneutrino sector and its consequences

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• Search for the Electric Dipole Moment and anomalous magnetic moment of the tau lepton at tau factories
• Lepton flavor violations in SUSY models for muon $g-2$ with right-handed neutrinos
• Radiative Neutrino Masses in the ${\nu }_R$MSSM
• Challenges for New Physics in the Flavour Sector
• Lepton flavor violation in supersymmetric low-scale seesaw models
• LOOL: Mathematica package for evaluating leading order one loop functions