TeV scale leptogenesis,θ13and doubly charged particles at LHC

2005/08/31 by Shahida Dar, Qaisar Shafi, Arunansu Sil
Physics and Astronomy · #Dark Matter and Cosmic Phenomena #Neutrino Physics Research #Particle physics theoretical and experimental studies #hep-ph

paper · pdf · doi:10.1016/j.physletb.2005.11.015

published as Phys.Lett.B632:517-526,2006 · 18 pages, 4 figures, revtex4. v2: minor changes, matches published version

openalex publication_date 2005/11/15 · arxiv created 2006/01/02 · arxiv updated 2011/05/12 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/02

Abstract

We explore a realistic supersymmetric SU(2)L×SU(2)R×U(1)B−L model spontaneously broken at around 1012GeV. The presence of D- and F-flat directions gives rise to TeV mass doubly charged particles which can be found at the LHC. We implement TeV scale leptogenesis and employing both type I and II seesaw, the three light neutrinos are partially degenerate with masses in the 0.02–0.1 eV range. The effective mass parameter for neutrinoless double beta decay is 0.03–0.05 eV. We also find the interesting relation tan2θ13≃sin2θ12tan2θ23(Δm⊙2Δmatm2)≲0.02.

Citations

• Signature at the Fermilab Tevatron for the light doubly charged Higgsino of the supersymmetric left-right model
• CP asymmetry in Majorana neutrino decays
• Monopoles, axions and intermediate mass dark matter
• Hybrid inflation, dark energy and dark matter
• Measurement of Day and Night Neutrino Energy Spectra at SNO and Constraints on Neutrino Mixing Parameters
• Probing the seesaw mechanism with neutrino data and leptogenesis
• On anomalous electroweak baryon-number non-conservation in the early universe