Constraints on the mass of muon neutrinos and their possible role in the galaxy formation

Details Constraints on the mass of muon neutrinos and their possible role in the galaxy formation Constraints on the mass of muon neutrinos and their possible role in the galaxy formation

Sep 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984phlb..144..386f&link_type=abstract

Physics Letters B, Volume 144, Issue 5-6, p. 386-390.

Physics

28

Scientific paper

A lower bound is derived on the mass of muon neutrinos [mνμ >~0(1keV)] by a combined use of a variety of neutrino mass experiments. Consistency with the cosmological mass density implies the presence of a flavour changing neutrino current with a symmetry breaking parameter (ν) smaller than 1011 GeV. Further consistency with the galaxy formation sets the parameters to be in a very narrow range near mνμ ~ O(1keV) and ν ~ O(1010 GeV), for which the visible mass of galaxies that can be reached is of order Mvis ~ 109 - 1011M.

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