Dirac Leptogenesis with a Non-anomalous $U(1)^{\prime}$ Family Symmetry

Details Dirac Leptogenesis with a Non-anomalous $U(1)^{\prime}$ Family Symmetry Dirac Leptogenesis with a Non-anomalous $U(1)^{\prime}$ Family Symmetry

2011-11-21

arxiv.org/abs/1111.5018v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

8 pages, 8 figures

Scientific paper

We propose a model for Dirac leptogenesis based on a non-anomalous $U(1)^{\prime}$ gauged family symmetry. The anomaly cancellation conditions are satisfied with no new chiral fermions other than the three right-handed neutrinos, giving rise to stringent constraints among the charges. Realistic masses and mixing angles are obtained for all fermions. The model predicts neutrinos of the Dirac type with naturally suppressed masses. Dirac leptogenesis is achieved through the decay of the flavon fields. The cascade decays of the vector-like heavy fermions in the Froggatt-Nielsen mechanism play a crucial role in the separation of the primodial lepton numbers. We find that a large region of parameter space of the model gives rise to a sufficient cosmological baryon number asymmetry through Dirac leptogenesis.

Affiliated with

Also associated with

No associations

Rating

Dirac Leptogenesis with a Non-anomalous $U(1)^{\prime}$ Family 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 Dirac Leptogenesis with a Non-anomalous $U(1)^{\prime}$ Family Symmetry, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Dirac Leptogenesis with a Non-anomalous $U(1)^{\prime}$ Family Symmetry will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-551238