Resonant Leptogenesis

Details Resonant Leptogenesis Resonant Leptogenesis

2003-09-30

arxiv.org/abs/hep-ph/0309342v3

Nucl.Phys.B692:303-345,2004

Physics

High Energy Physics

High Energy Physics - Phenomenology

53 pages, LaTeX, 5 eps figures, improved Eq. (A.7) and clarifying comments added

Scientific paper

10.1016/j.nuclphysb.2004.05.029

We study the scenario of thermal leptogenesis in which the leptonic asymmetries are resonantly enhanced through the mixing of nearly degenerate heavy Majorana neutrinos that have mass differences comparable to their decay widths. Field-theoretic issues arising from the proper subtraction of real intermediate states from the lepton-number-violating scattering processes are addressed in connection with an earlier developed resummation approach to unstable particle mixing in decay amplitudes. The pertinent Boltzmann equations are numerically solved after the enhanced heavy-neutrino self-energy effects on scatterings and the dominant gauge-mediated collision terms are included. We show that resonant leptogenesis can be realized with heavy Majorana neutrinos even as light as about 1 TeV, in complete accordance with the current solar and atmospheric neutrino data.

Affiliated with

Also associated with

No associations

Rating

Resonant Leptogenesis 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, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Resonant Leptogenesis will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-280064