Published September 12, 2008
| Version v1
Journal article
Independent Measurement of the Total Active 8B Solar Neutrino Flux Using an Array of 3He Proportional Counters at the Sudbury Neutrino Observatory
Creators
- 1. Department of Physics and Astronomy, Laurentian University, Sudbury, ON P3E 2C6 (Canada)
- 2. Department of Physics, Queen's University, Kingston, ON K7L 3N6 (Canada)
Description
The Sudbury Neutrino Observatory (SNO) used an array of 3He proportional counters to measure the rate of neutral-current interactions in heavy water and precisely determined the total active (νx) 8B solar neutrino flux. This technique is independent of previous methods employed by SNO. The total flux is found to be 5.54-0.31+0.33(stat)-0.34+0.36(syst)x106 cm-2 s-1, in agreement with previous measurements and standard solar models. A global analysis of solar and reactor neutrino results yields Δm2=7.59-0.21+0.19x10-5 eV2 and θ=34.4-1.2+1.3 degrees. The uncertainty on the mixing angle has been reduced from SNO's previous results
Additional details
Identifiers
- DOI
- 10.1103/PhysRevLett.101.111301;
- arXiv
- arXiv:0806.0989v3;
Publishing Information
- Journal Title
- Physical Review Letters
- Journal Volume
- 101
- Journal Issue
- 11
- Journal Page Range
- p. 111301-111301.5
- ISSN
- 0031-9007
- CODEN
- PRLTAO
INIS
- Country of Publication
- United States
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 40053900
- Subject category
- S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
- Descriptors DEI
- BORON 8; GLOBAL ANALYSIS; HEAVY WATER; HELIUM 3; NEUTRAL-CURRENT INTERACTIONS; PROPORTIONAL COUNTERS; SOLAR NEUTRINOS; SUDBURY NEUTRINO OBSERVATORY; WEINBERG ANGLE
- Descriptors DEC
- BETA DECAY RADIOISOTOPES; BETA-PLUS DECAY RADIOISOTOPES; BORON ISOTOPES; DEUTERIUM COMPOUNDS; ELEMENTARY PARTICLES; EVEN-ODD NUCLEI; FERMIONS; HELIUM ISOTOPES; HYDROGEN COMPOUNDS; INTERACTIONS; ISOTOPES; LEPTONS; LIGHT NUCLEI; MASSLESS PARTICLES; MATHEMATICS; MEASURING INSTRUMENTS; MILLISECONDS LIVING RADIOISOTOPES; NEUTRINOS; NUCLEI; ODD-ODD NUCLEI; OXYGEN COMPOUNDS; PARTICLE INTERACTIONS; RADIATION DETECTORS; RADIATIONS; RADIOISOTOPES; SOLAR PARTICLES; SOLAR RADIATION; STABLE ISOTOPES; STELLAR RADIATION; WATER
Optional Information
- Notes
- (c) 2008 The American Physical Society
- Collaborations
- SNO Collaboration