Can the sun shed light on neutrino gravitational interactions?

Details Can the sun shed light on neutrino gravitational interactions? Can the sun shed light on neutrino gravitational interactions?

Sep 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991phrvl..67.1833h&link_type=abstract

Physical Review Letters (ISSN 0031-9007), vol. 67, Sept. 30, 1991, p. 1833-1835. Research supported by University of Delaware.

Physics

88

Gravitational Fields, Klein-Gordon Equation, Neutrinos, Particle Energy, Hamiltonian Functions, Quantum Theory

Scientific paper

The effects of a large gravitational field on the phenomenon of neutrino oscillations, as contemplated in the Mikheyev-Smirnov-Wolfenstein mechanism, have been examined. It is found that the sun's gravitational field would amplify any small breakdown in the universality of the gravitational coupling by many orders of magnitude. A breakdown of only 1 part in 10 to the 14th would still make the gravitational effect comparable to the conventional weak interaction. The differing energy dependences of the two level-crossing mechanisms can therefore be used as a very sensitive tool to test the conventional universality hypothesis.

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