Measurement of neutron production in atmospheric neutrino interactions at the Sudbury Neutrino Observatory
Neutron production in giga electron volt-scale neutrino interactions is a poorly studied process.We have measured the neutron multiplicities in atmospheric neutrino interactions in the SudburyNeutrino Observatory experiment and compared them to the prediction of a Monte Carlo simulationusinggenieand...
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| Main Authors: | , |
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| Corporate Author: | |
| Format: | Article (Journal) |
| Language: | English |
| Published: |
18 June 2019
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| In: |
Physical review
Year: 2019, Volume: 99, Issue: 11 |
| ISSN: | 2470-0029 |
| DOI: | 10.1103/PhysRevD.99.112007 |
| Online Access: | Verlag, Volltext: http://dx.doi.org/10.1103/PhysRevD.99.112007
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| Author Notes: | B. Aharmim, S.N. Ahmed, A.E. Anthony, N. Barros, E.W. Beier, A. Bellerive, B. Beltran, M. Bergevin, S.D. Biller, R. Bonventre, K. Boudjemline, M.G. Boulay, B. Cai, E.J. Callaghan, J. Caravaca , Y.D. Chan, D. Chauhan, M. Chen, B.T. Clevel, G.A. Cox, X. Dai, H. Deng, F.B. Descamps, J.A. Detwiler, P.J. Doe, G. Doucas, P.-L. Drouin, M. Dunford, S.R. Elliott, H.C. Evans, G.T. Ewan, J. Farine, H. Fergani, F. Fleurot , R.J. Ford, J.A. Formaggio, N. Gagnon, K. Gilje, J. TM. Goon, K. Graham, E. Guillian, S. Habib, R.L. Hahn, A.L. Hallin E.D. Hallman, P.J. Harvey, R. Hazama, W.J. Heintzelman, J. Heise, R.L. Helmer, A. Hime, C. Howard, M. Huang, P. Jagam, B. Jamieson, N.A. Jelley, M. Jerkins, K.J. Keeter, J.R. Klein, L.L. Kormos, M. Kos, A. Kruger, C. Kraus, C.B. Krauss, T. Kutter, C.C.M. Kyba, B.J. Land, R. Lange, J. Law, I.T. Lawson, K.T. Lesko, J.R. Leslie, I. Levine, J.C. Loach, R. MacLellan, S. Majerus, H.B. Mak, J. Maneira, R.D. Martin, A. Mastbaum, N. McCauley, A.B. McDonald, S.R. McGee, M.L. Miller, B. Monreal , J. Monroe, B.G. Nickel, A.J. Noble, H.M. O'Keeffe, N.S. Oblath, C.E. Okada, R.W. Ollerhead, G.D. Orebi Gann, S.M. Oser, R.A. Ott, S.J.M. Peeters, A.W.P. Poon, G. Prio, S.D. Reitzner, K. Rielage, B.C. Robertson, R.G.H. Robertson, M.H. Schwendener, J.A. Secrest, S.R. Seibert, O. Simard, D. Sinclair, J. Singh, P. Skensved, M. Smiley, T.J. Sonley, L.C. Stonehill, G. Tesic, N. Tolich, T. Tsui, R. Van Berg, B.A. Vevender, C.J. Virtue, B.L. Wall, D. Waller, H. Wan Chan Tseung, D.L. Wark, J. Wendl, N. West, J.F. Wilkerson, J.R. Wilson, T. Winchester, A. Wright, M. Yeh, F. Zhang, and K. Zuber (SNO Collaboration) |
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| 245 | 1 | 0 | |a Measurement of neutron production in atmospheric neutrino interactions at the Sudbury Neutrino Observatory |c B. Aharmim, S.N. Ahmed, A.E. Anthony, N. Barros, E.W. Beier, A. Bellerive, B. Beltran, M. Bergevin, S.D. Biller, R. Bonventre, K. Boudjemline, M.G. Boulay, B. Cai, E.J. Callaghan, J. Caravaca , Y.D. Chan, D. Chauhan, M. Chen, B.T. Clevel, G.A. Cox, X. Dai, H. Deng, F.B. Descamps, J.A. Detwiler, P.J. Doe, G. Doucas, P.-L. Drouin, M. Dunford, S.R. Elliott, H.C. Evans, G.T. Ewan, J. Farine, H. Fergani, F. Fleurot , R.J. Ford, J.A. Formaggio, N. Gagnon, K. Gilje, J. TM. Goon, K. Graham, E. Guillian, S. Habib, R.L. Hahn, A.L. Hallin E.D. Hallman, P.J. Harvey, R. Hazama, W.J. Heintzelman, J. Heise, R.L. Helmer, A. Hime, C. Howard, M. Huang, P. Jagam, B. Jamieson, N.A. Jelley, M. Jerkins, K.J. Keeter, J.R. Klein, L.L. Kormos, M. Kos, A. Kruger, C. Kraus, C.B. Krauss, T. Kutter, C.C.M. Kyba, B.J. Land, R. Lange, J. Law, I.T. Lawson, K.T. Lesko, J.R. Leslie, I. Levine, J.C. Loach, R. MacLellan, S. Majerus, H.B. Mak, J. Maneira, R.D. Martin, A. Mastbaum, N. McCauley, A.B. McDonald, S.R. McGee, M.L. Miller, B. Monreal , J. Monroe, B.G. Nickel, A.J. Noble, H.M. O'Keeffe, N.S. Oblath, C.E. Okada, R.W. Ollerhead, G.D. Orebi Gann, S.M. Oser, R.A. Ott, S.J.M. Peeters, A.W.P. Poon, G. Prio, S.D. Reitzner, K. Rielage, B.C. Robertson, R.G.H. Robertson, M.H. Schwendener, J.A. Secrest, S.R. Seibert, O. Simard, D. Sinclair, J. Singh, P. Skensved, M. Smiley, T.J. Sonley, L.C. Stonehill, G. Tesic, N. Tolich, T. Tsui, R. Van Berg, B.A. Vevender, C.J. Virtue, B.L. Wall, D. Waller, H. Wan Chan Tseung, D.L. Wark, J. Wendl, N. West, J.F. Wilkerson, J.R. Wilson, T. Winchester, A. Wright, M. Yeh, F. Zhang, and K. Zuber (SNO Collaboration) |
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| 520 | |a Neutron production in giga electron volt-scale neutrino interactions is a poorly studied process.We have measured the neutron multiplicities in atmospheric neutrino interactions in the SudburyNeutrino Observatory experiment and compared them to the prediction of a Monte Carlo simulationusinggenieand a minimally modified version ofgeant4. We analyzed 837 days of exposurecorresponding to Phase I, using pure heavy water, and Phase II, using a mixture of Cl in heavywater. Neutrons produced in atmospheric neutrino interactions were identified with an efficiencyof 15.3% and 44.3%, for Phases I and II respectively. The neutron production is measured asa function of the visible energy of the neutrino interaction and, for charged current quasielasticinteraction candidates, also as a function of the neutrino energy. This study is also performed byclassifying the complete sample into two pairs of event categories: charged current quasielastic andnon charged current quasielastic, andνμandνe. Results show good overall agreement between dataand Monte Carlo for both phases, with some small tension with a statistical significance below 2σfor some intermediate energies. | ||
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