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The Sudbury Neutrino Observatory

Conference ·
OSTI ID:10130952
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  1. Lawrence Berkeley Lab., CA (United States)
  2. Queen`s Univ., Kingston, ON (Canada). Dept. of Physics
  3. Atomic Energy of Canada Ltd., Chalk River, ON (Canada). Chalk River Labs.
  4. Carleton Univ., Ottawa, ON (Canada)
  5. Guelph Univ., ON (Canada). Dept. of Physics
  6. Laurentian Univ., Sudbury, ON (Canada). Dept. of Physics
  7. British Columbia Univ., Vancouver, BC (Canada). Dept. of Physics
  8. Princeton Univ., NJ (United States). Dept. of Physics
  9. Pennsylvania Univ., Philadelphia, PA (United States). Dept. of Physics
  10. Los Alamos National Lab., NM (United States)
  11. Oxford Univ. (United Kingdom). Dept. of Physics
+ Show Author Affiliations

Two experiments now in progress have reported measurements of the flux of high energy neutrinos from the Sun. Since about 1970, Davis and his co-workers have been using a {sup 37}Cl-based detector to measure the {sup 7}Be and {sup 8}B solar neutrino flux and have found it to be at least a factor of three lower than that predicted by the Standard Solar Model (SSM). The Kamiokande collaborations has been taking data since 1986 using a large light-water Cerenkov detector and have confirmed that the flux is about two times lower than predicted. Recent results from the SAGE and GALLEX gallium-based detectors show that there is also a deficit of the low energy pp solar neutrinos. These discrepancies between experiment and theory could arise because of inadequacies in the theoretical models of solar energy generation or because of previously unobserved properties of neutrinos. The Sudbury Neutrino Observatory (SNO) will provide the information necessary to decide which of these solutions to the ``solar neutrino problem`` is correct.

Research Organization:
Lawrence Berkeley Lab., CA (United States)
Sponsoring Organization:
USDOE, Washington, DC (United States); Natural Sciences and Engineering Research Council of Canada, Ottawa, ON (Canada); National Research Council of Canada, Ottawa, ON (Canada)
DOE Contract Number:
AC03-76SF00098
OSTI ID:
10130952
Report Number(s):
LBL--33304; CONF-921122--42; ON: DE93007697
Country of Publication:
United States
Language:
English

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Related Subjects

440104
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
662310
662320
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
HIGH ENERGY PHYSICS INSTRUMENTATION
NEUTRAL CURRENTS
NEUTRINO DETECTION
NEUTRINO INTERACTIONS
NEUTRINO REACTIONS
SOLAR NEUTRINOS
STANDARD MODEL
WEAK AND ELECTROMAGNETIC INTERACTIONS OF LEPTONS