May Heavy neutrinos solve underground and cosmic ray puzzles?

Details May Heavy neutrinos solve underground and cosmic ray puzzles? May Heavy neutrinos solve underground and cosmic ray puzzles?

2004-11-05

arxiv.org/abs/hep-ph/0411093v1

Phys.Atom.Nucl.71:147-161,2008

Physics

High Energy Physics

High Energy Physics - Phenomenology

16 pages, 8 figures

Scientific paper

10.1007/s11450-008-1016-9

Primordial Heavy neutrinos of 4th generation might explain different astrophysical puzzles: indeed the simplest 4th neutrino scenario may be still consistent with known 4th neutrino physics, cosmic ray anti-matter and gamma fluxes and signals in underground detectors for a very narrow neutrino mass windows (46-47 GeV). We have analyzed extended Heavy neutrino models related to the clumpiness of neutrino density, new interactions in Heavy neutrino annihilation, neutrino asymmetry, neutrino decay. We found that in these models the underground signals maybe better combined with the cosmic ray imprint leading to a wider windows for neutrino mass (46-75 GeV) coinciding with the whole range allowed from uncertainties of electro-weak parameters.

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