期刊
PHYSICAL REVIEW D
卷 80, 期 7, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevD.80.076011
关键词
-
资金
- European Commission [MRTN-CT-2006-035505]
Does a future observation of low energy leptonic CP violation imply a lepton asymmetry both in flavored leptogenesis and in its one-flavor approximation? Under reasonable assumptions this is the case if lepton masses and mixings are explained by a flavor symmetry in a seesaw model. We are particularly interested in the class of flavor theory which leads to U-e3 = 0 at leading order. We explicitly implement this approach with a predictive seesaw model for tribimaximal mixing (TBM) and show how cosmological baryon asymmetry can be directly triggered by low energy phases appearing in U-e3. In this model, thanks to this direct correlation, we can derive a lower bound on the reactor angle theta(13): sin(2)theta(13) greater than or similar to 0: 005.
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