A Investigation of Neutrino Properties Through Study of the Sun, Supernovae, the Early Universe and Lab Data.

Details A Investigation of Neutrino Properties Through Study of the Sun, Supernovae, the Early Universe and Lab Data. A Investigation of Neutrino Properties Through Study of the Sun, Supernovae, the Early Universe and Lab Data.

Jan 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992phdt.......103r&link_type=abstract

Thesis (PH.D.)--UNIVERSITY OF MARYLAND COLLEGE PARK, 1992.Source: Dissertation Abstracts International, Volume: 53-10, Section:

Physics

Scientific paper

In this thesis I propose theories to explain two experiments whose results are incompatible with the standard model of particle physics. More specifically, these experiments indicate a need for considerable augmentation in the neutrino sector of the Weinberg-Salam model. The first part of this thesis deals with explaining the results of the search for solar neutrinos. Three solar neutrino experiments have been performed and all see only a fraction of the expected number of neutrinos. Moreover, one of the experiments (seems to) see an anti-correlation of the neutrino flux with the magnetic field intensity in the convective zone of the sun, while the second does not (the third has not been running long enough to see any time variation). Here it is shown that by assuming that the neutrinos have masses, as well as considerable magnetic moments, it is possible to explain not only the dearth in the flux but also its time variation. The second part of this work is dedicated to explaining the results of the recent experiments which claim the existence of a 17 keV neutrino which mixes with the electron neutrino with a mixing angle of 10 percent. Such a neutrino is especially meddlesome to theorists because of the encyclopedic constraints from lab data, supernovae, and big-bang nucleosynthesis. In this thesis I show that such a neutrino is compatible with all the constraints if one is willing to go well beyond the standard model.

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