LOW-MULTIPLICITY BURST SEARCH AT THE SUDBURY NEUTRINO OBSERVATORY

作者：Aharmim B^*; Ahmed S N; Anthony A E; Barros N; Beier E W; Bellerive A; Beltran B; Bergevin M; Biller S D; Boudjemline K; Boulay M G; Cai B; Chan Y D; Chauhan D; Chen M; Cleveland B T; Dai X; Deng H; Detwiler J; Doucas G; Drouin P L; Duncan F A; Dunford M; Earle E D; Elliott S R; Evans H C; Ewan G T; Farine J; Fergani H; Fleurot F; Ford R J; Formaggio J A; Gagnon N; Goon J T M; Graham K; Guillian E; Habib S

来源：Astrophysical Journal, 2011, 728(2): 83.

DOI：10.1088/0004-637X/728/2/83

• neutrinos
• supernovae: general

Results are reported from a search for low-multiplicity neutrino bursts in the Sudbury Neutrino Observatory. Such bursts could indicate the detection of a nearby core-collapse supernova explosion. The data were taken from Phase I (1999 November-2001 May), when the detector was filled with heavy water, and Phase II (2001 July-2003 August), 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.

• 出版日期2011-2-20
• 单位Los Alamos; MIT