Alternatives to Seesaw
Conference
·
OSTI ID:964272
The seesaw mechanism is attractive not only because it"explains'' small neutrino mass, but also because of its packaging with the SUSY-GUT, leptogenesis, Dark Matter, and electroweak symmetry breaking. However, this package has the flavor, CP, and gravitino problems. I discuss two alternatives to the seesaw mechanism. In one of them, the anomaly-mediated supersymmetry breaking solves these problems, while predicts naturally light Dirac neutrinos. In the other, the light Majorana neutrinos arise from supersymmetry breaking with right-handed neutrinos below TeV, and the Dark Matter and collider phenomenology are significantly different.
- Research Organization:
- Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
- Sponsoring Organization:
- Physics Division
- DOE Contract Number:
- DE-AC02-05CH11231
- OSTI ID:
- 964272
- Report Number(s):
- LBNL-56577; TRN: US0903669
- Resource Relation:
- Conference: Fujihara Seminar On Neutrino Mass And Seesaw Mechanism (SEESAW 1979-2004), Tsukuba, Ibaraki, Japan, 23-25 Feb 2004; Related Information: Journal Publication Date: December 2004
- Country of Publication:
- United States
- Language:
- English
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