Antineutrino Search at the Sudbury Neutrino Observatory

Details Antineutrino Search at the Sudbury Neutrino Observatory Antineutrino Search at the Sudbury Neutrino Observatory

Jul 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003icrc....3.1233k&link_type=abstract

Proceedings of the 28th International Cosmic Ray Conference. July 31-August 7, 2003. Trukuba, Japan. Under the auspices of the I

Physics

Scientific paper

The Sudbury Neutrino Observatory (SNO) is an imaging water Cherenkov detector. Its one kiloton heavy water core provides a unique means for an electron antineutrino search via the charged current reaction ν e + d → e+ + n + n. The reaction signature are twoand three-fold coincidence events which allow for rigorous background rejection. Hence, SNO is able to reach high electron antineutrino sensitivity. The appearance of electron antineutrinos is a smoking gun for spin flavour precession models which require neutrinos to have a magnetic moment. Furthermore, observation of a significant solar antineutrino flux could be indicative of CPT violation in the neutrino sector. A limit on the antineutrino flux sets an upper limit on the thermal power of a hypothesized geo-fission reactor at the center of the Earth.

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