Gravitational helicity flip for massive neutrinos and SN 1987A

Details Gravitational helicity flip for massive neutrinos and SN 1987A Gravitational helicity flip for massive neutrinos and SN 1987A

Sep 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989cqgra...6l.167c&link_type=abstract

Classical and Quantum Gravity (ISSN 0264-9381), vol. 6, Sept. 1989, p. L167-L171.

Other

10

Gravitational Effects, Neutrinos, Particle Mass, Supernova 1987A, Elementary Particle Interactions, Gravitational Collapse, Neutron Stars

Scientific paper

Recently many authors have shown that interactions which flip neutrino helicity could have dramatic implications for the cooling of hot neutron matter during stellar collapse. In this letter a hitherto unexplored possibility of gravitational interactions causing such a helicity flip is considered. For low-energy neutrinos, it is shown that the gravitational helicity flip could overwhelm other causes of helicity flip. In addition, it is shown that the cooling rate of neutron stars can limit the strength of parity violating gravitational helicity flips. The bound so obtained is better than the limits known at present by a least two orders of magnitude.

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