Measurement of the Rate of {nu}{sub e} + d {yields} p + p + e{sup -} Interactions Produced by B

Journal Article · Mon Aug 13 00:00:00 EDT 2001 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.87.071301· OSTI ID:40230934

Ahmad, Q R; Allen, R C; Andersen, T C; Anglin, J D; Buehler, G; Barton, J C; Beier, E W; Bercovitch, M; Bigu, J; Biller, S ^[1]

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1. and others

Solar neutrinos from {sup 8}B decay have been detected at the Sudbury Neutrino Observatory via the charged current (CC) reaction on deuterium and the elastic scattering (ES) of electrons. The flux of {nu}{sub e}'s is measured by the CC reaction rate to be {phi}{sup CC}({nu}{sub e}) =1.75{+-}0.07(stat){sup +0.12}{sub -0.11}(syst){+-}0.05(theor ) x 10{sup 6} cm{sup -2}s{sup -1}. Comparison of {phi}{sup CC}({nu}{sub e}) to the Super-Kamiokande Collaboration's precision value of the flux inferred from the ES reaction yields a 3.3{sigma} difference, assuming the systematic uncertainties are normally distributed, providing evidence of an active non-{nu}{sub e} component in the solar flux. The total flux of active {sup 8}B neutrinos is determined to be 5.44{+-}0.99 x 10{sup 6} cm {sup -2} s{sup -1}.

• Sponsoring Organization: (US)
• OSTI ID: 40230934
• Journal Information: Physical Review Letters, Vol. 87, Issue 7; Other Information: DOI: 10.1103/PhysRevLett.87.071301; Othernumber: PRLTAO000087000007071301000001; 001133PRL; PBD: 13 Aug 2001; ISSN 0031-9007
• Publisher: The American Physical Society
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
CHARGED CURRENTS
DECAY
DEUTERIUM
ELASTIC SCATTERING
ELECTRONS
NEUTRINOS
REACTION KINETICS
SOLAR FLUX
SOLAR NEUTRINOS
SUDBURY NEUTRINO OBSERVATORY