Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2002-01-08
Phys.Rev. D65 (2002) 093009
Physics
High Energy Physics
High Energy Physics - Phenomenology
18 pages, 6 figures. Matches version to appear in PRD
Scientific paper
10.1103/PhysRevD.65.093009
In the context of left-right symmetric models we study the connection of leptogenesis and low energy parameters such as neutrinoless double beta decay and leptonic CP violation. Upon imposition of a unitarity constraint, the neutrino parameters are significantly restricted and the Majorana phases are determined within a narrow range, depending on the kind of solar solution. One of the Majorana phases gets determined to a good accuracy and thereby the second phase can be probed from the results of neutrinoless double beta decay experiments. We examine the contributions of the solar and atmospheric mass squared differences to the asymmetry and find that in general the solar scale dominates. In order to let the atmospheric scale dominate, some finetuning between one of the Majorana phases and the Dirac CP phase is required. In this case, one of the Majorana phases is determined by the amount of CP violation in oscillation experiments.
Balaji K. R. S.
Rodejohann Werner
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