Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2001-05-17
JHEP 0108:029,2001
Physics
High Energy Physics
High Energy Physics - Phenomenology
16 pages, 3 figures. One paragraph and some references added, typos corrected
Scientific paper
10.1088/1126-6708/2001/08/029
The usual see-saw formula is modified by the presence of two Higgs triplets in left-right symmetric theories. The contribution from the left-handed Higgs triplet to the see-saw formula can dominate over the conventional one when the neutrino Dirac mass matrix is identified with the charged lepton or down quark mass matrix. In this case an analytic calculation of the lepton asymmetry, generated by the decay of the lightest right-handed Majorana neutrino, is possible. For typical parameters, the out-of-equilibrium condition for the decay is automatically fulfilled. The baryon asymmetry has the correct order of magnitude, as long as the lightest mass eigenstate is not much lighter then 10^{-6} to 10^{-8} eV, depending on the solution of the solar neutrino problem. A sizable signal in neutrinoless double beta decay can be expected, as long as the smallest mass eigenstate is not much lighter than 10^{-3} eV and the Dirac mass matrix is identified with the charged lepton mass matrix.
Joshipura Anjan S.
Paschos Emmanuel A.
Rodejohann Werner
No associations
LandOfFree
A simple connection between neutrino oscillation and 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 A simple connection between neutrino oscillation and leptogenesis, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A simple connection between neutrino oscillation and leptogenesis will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-184756