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research article
Leptogenesis with TeV Scale Inverse Seesaw in SO(10)
2010
We discuss leptogenesis within a TeV-scale inverse seesaw model for neutrino masses where the seesaw structure is guaranteed by an SO(10) symmetry. Contrary to the TeV-scale type-I gauged seesaw, the constraints imposed by successful leptogenesis in these models are rather weak and allow for the extra gauge bosons W_R and Z' to be in the LHC accessible range. The key differences in the inverse seesaw compared to the type I case are: (i) decay and inverse decay rates larger than the scatterings involving extra gauge bosons due to the large Yukawa couplings and (ii) the suppression of the washout due to very small lepton number breaking.
Type
research article
ArXiv ID
1010.1471
Authors
Publication date
2010
Publisher
Published in
Volume
82
Issue
11
Article Number
5025
Peer reviewed
REVIEWED
EPFL units
Available on Infoscience
February 12, 2012
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