Resonant leptogenesis and tribimaximal leptonic mixing with A4 symmetry

Details Resonant leptogenesis and tribimaximal leptonic mixing with A4 symmetry Resonant leptogenesis and tribimaximal leptonic mixing with A4 symmetry

2009-04-20

arxiv.org/abs/0904.3076v2

Phys.Rev.D79:093008,2009

Physics

High Energy Physics

High Energy Physics - Phenomenology

14 pages, 15 figures; final version to appear in Phys. Rev. D

Scientific paper

10.1103/PhysRevD.79.093008

We investigate the viability of thermal leptogenesis in type-I seesaw models with leptonic flavour symmetries that lead to tribimaximal neutrino mixing. We consider an effective theory with an A4 x Z3 x Z4 symmetry, which is spontaneously broken at a scale much higher than the electroweak scale. At the high scale, leptonic Yukawa interactions lead to exact tribimaximal mixing and the heavy Majorana neutrino mass spectrum is exactly degenerate. In this framework, leptogenesis becomes viable once this degeneracy is lifted either by renormalization group effects or by a soft breaking of the A4 symmetry. The implications for low-energy neutrino physics are discussed.

Affiliated with

Also associated with

No associations

Rating

Resonant leptogenesis and tribimaximal leptonic mixing with A4 symmetry does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Resonant leptogenesis and tribimaximal leptonic mixing with A4 symmetry, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Resonant leptogenesis and tribimaximal leptonic mixing with A4 symmetry will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-174433