New Physics in the New Millennium with GENIUS: Double Beta Decay, Dark Matter, Solar Neutrinos

Details New Physics in the New Millennium with GENIUS: Double Beta Decay, Dark Matter, Solar Neutrinos New Physics in the New Millennium with GENIUS: Double Beta Decay, Dark Matter, Solar Neutrinos

2001-02-26

arxiv.org/abs/hep-ph/0102319v1

Part.Nucl.Lett. 104 (2001) 20-39

Physics

High Energy Physics

High Energy Physics - Phenomenology

20 pages, revtex, 17 figures, Talk was presented at International Workshop on Non-Accelerator New Physics in Neutrino Observat

Scientific paper

Double beta decay is indispensable to solve the question of the neutrino mass matrix together with $\nu$ oscillation experiments. The most sensitive experiment since eight years - the Heidelberg-Moscow experiment in Gran-Sasso - already now, with the experimental limit of $ < 0.26$ eV excludes degenerate $\nu$ mass scenarios allowing neutrinos as hot dark matter in the universe for the small angle MSW solution of the solar neutrino problem. It probes cosmological models including hot dark matter already now on the level of future satellite experiments MAP and PLANCK. It further probes many topics of beyond Standard Model physics at the TeV scale. Future experiments should give access to the multi-TeV range and complement on many ways the search for new physics at future colliders like LHC and NLC. For neutrino physics some of them (GENIUS) will allow to test almost all neutrino mass scenarios allowed by the present neutrino oscillation experiments. At the same time GENIUS will cover a wide range of the parameter space of predictions of SUSY for neutralinos as cold dark matter. Further it has the potential to be a real-time detector for low-energy ($pp$ and $^7$Be) solar neutrinos. A GENIUS Test Facility has just been funded and will come into operation by end of 2001.

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