TeV Scale Leptogenesis, theta_13 And Doubly Charged Particles At LHC

Details TeV Scale Leptogenesis, theta_13 And Doubly Charged Particles At LHC TeV Scale Leptogenesis, theta_13 And Doubly Charged Particles At LHC

2005-08-02

arxiv.org/abs/hep-ph/0508037v2

Phys.Lett.B632:517-526,2006

Physics

High Energy Physics

High Energy Physics - Phenomenology

18 pages, 4 figures, revtex4. v2: minor changes, matches published version

Scientific paper

10.1016/j.physletb.2005.11.015

We explore a realistic supersymmetric SU(2)_L \times SU(2)_R \times U(1)_B-L model spontaneously broken at around 10^12 GeV. 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 tan 2 \theta_13 ~ [\Delta m^2_{\odot} / \Delta m^2_{atm}] [sin 2 \theta_12 /tan 2 \theta_23] <~ 0.02.

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