Low-multiplicity burst search at the Sudbury Neutrino Observatory

Aharmim, B. and Ahmed, S. N. and Anthony, A. E. and Barros, N. and Beier, E. W. and Bellerive, A. and Beltran, B. and Bergevin, M. and Biller, S. D. and Boudjemline, K. and Boulay, M. G. and Cai, B. and Chan, Y. D. and Chauhan, D. and Chen, M. and Cleveland, B. T. and Dai, X. and Deng, H. and Detwiler, J. and Doucas, G. and Drouin, P.-l. and Duncan, F. A. and Dunford, M. and Earle, E. D. and Elliott, S. R. and Evans, H. C. and Ewan, G. T. and Farine, J. and Fergani, H. and Fleurot, F. and Ford, R. J. and Formaggio, J. A. and Gagnon, N. and Goon, J. T. M. and Graham, K. and Guillian, E. and Habib, S. and Hahn, R. L. and Hallin, A. L. and Hallman, E. D. and Harvey, P. J. and Hazama, R. and Heintzelman, W. J. and Heise, J. and Helmer, R. L. and Hime, A. and Howard, C. and Huang, M. and Jamieson, B. and O'keeffe, H. M. (2011) Low-multiplicity burst search at the Sudbury Neutrino Observatory. The Astrophysical Journal, 728 (2). ISSN 0004-637X

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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.

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The Astrophysical Journal
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12 Jun 2014 13:25
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01 Jan 2020 08:54