Low Multiplicity Burst Search at the Sudbury Neutrino Observatory
Nov, 2010Citations per year
Abstract: (arXiv)
Results are reported from a search for low-multiplicity neutrino bursts in the Sudbury Neutrino Observatory (SNO). Such bursts could indicate detection of a nearby core-collapse supernova explosion. The data were taken from Phase I (November 1999 - May 2001), when the detector was filled with heavy water, and Phase II (July 2001 - August 2003), when NaCl was added to the target. The search was a blind analysis in which the potential backgrounds were estimated and analysis cuts were developed to eliminate such backgrounds with 90% confidence before the data were examined. The search maintained a greater than 50% detection probability for standard supernovae occurring at a distance of up to 60 kpc for Phase I and up to 70 kpc for Phase II. No low-multiplicity bursts were observed during the data-taking period.Note:
- 11 pages, 4 figures, submitted to ApJ
- supernovae: general
- neutrino: burst
- water: heavy
- background
- supernova
- multiplicity
- SNO
- Cherenkov counter: imaging
- sodium: chlorine
- energy: threshold
References(17)
Figures(4)