Constraints on Dirac-type neutrino magnetic moments from 37Cl and Kamiokande II solar-neutrino observations

Details Constraints on Dirac-type neutrino magnetic moments from 37Cl and Kamiokande II solar-neutrino observations Constraints on Dirac-type neutrino magnetic moments from 37Cl and Kamiokande II solar-neutrino observations

May 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991phrvd..43.3557s&link_type=abstract

Physical Review D (Particles and Fields), Volume 43, Issue 10, 15 May 1991, pp.3557-3560

Physics

10

Scientific paper

The different time variations of solar-neutrino observations in the 37Cl and Kamiokande II experiments are accounted for by postulating a sizable contribution from an additional electromagnetic interaction via a neutrino magnetic moment in the Kamiokande II detector. Based on the combined effects of weak and electromagnetic interactions of neutrinos, this discrepancy in the time variation provides a range of allowed values for a Dirac-type neutrino magnetic moment, 4.0<μνe<7.9×10-10μB at 95% C.L. (in units of Bohr magneton), assuming that the solar-neutrino deficit is uniform in neutrino energy.

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