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Search for Neutrinos from the Sun

Phys. Rev. Lett. 20, 1205 – Published 20 May 1968
Raymond Davis, Jr., Don S. Harmer, and Kenneth C. Hoffman


A search was made for solar neutrinos with a detector based upon the reaction Cl37(ν, e-)Ar37. The upper limit of the product of the neutrino flux and the cross sections for all sources of neutrinos was 3×10-36 sec-1 per Cl37 atom. It was concluded specifically that the flux of neutrinos from B8 decay in the sun was equal to or less than 2×106 cm-2 sec-1 at the earth, and that less than 9% of the sun's energy is produced by the carbon-nitrogen cycle.

DOI: http://dx.doi.org/10.1103/PhysRevLett.20.1205

  • Received 16 April 1968
  • Published in the issue dated 20 May 1968

© 1968 The American Physical Society

Physics Focus

Nobel Focus: Neutrino and X-ray Vision

Published 16 October 2002

Authors & Affiliations

Raymond Davis, Jr., Don S. Harmer*, and Kenneth C. Hoffman

  • Brookhaven National Laboratory, Upton, New York 11973

  • *Permanent address: Georgia Institute of Technology, Atlanta, Georgia.

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