Measurement of neutron production in atmospheric neutrino interactions at the Sudbury Neutrino Observatory. / SNO Collaboration.

In: Physical Review D , Vol. 99, No. 11, 112007, 18.06.2019, p. 1-19.

Research output: Contribution to journalArticle

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### Standard

In: Physical Review D , Vol. 99, No. 11, 112007, 18.06.2019, p. 1-19.

Research output: Contribution to journalArticle

### Author

SNO Collaboration. / Measurement of neutron production in atmospheric neutrino interactions at the Sudbury Neutrino Observatory. In: Physical Review D . 2019 ; Vol. 99, No. 11. pp. 1-19.

### BibTeX

@article{88711a9963de4fe188a34a2ba1198e7c,
title = "Measurement of neutron production in atmospheric neutrino interactions at the Sudbury Neutrino Observatory",
abstract = "Neutron production in GeV-scale neutrino interactions is a poorly studied process. We have measured the neutron multiplicities in atmospheric neutrino interactions in the Sudbury Neutrino Observatory experiment and compared them to the prediction of a Monte Carlo simulation using GENIE and a minimally modified version of GEANT4. We analyzed 837 days of exposure corresponding to Phase I, using pure heavy water, and Phase II, using a mixture of Cl in heavy water. Neutrons produced in atmospheric neutrino interactions were identified with an efficiency of $15.3\%$ and $44.3\%$, for Phase I and II respectively. The neutron production is measured as a function of the visible energy of the neutrino interaction and, for charged current quasi-elastic interaction candidates, also as a function of the neutrino energy. This study is also performed classifying the complete sample into two pairs of event categories: charged current quasi-elastic and non charged current quasi-elastic, and $\nu_{\mu}$ and $\nu_e$. Results show good overall agreement between data and Monte Carlo for both phases, with some small tension with a statistical significance below $2\sigma$ for some intermediate energies. ",
keywords = "hep-ex",
author = "{SNO Collaboration} and B. Aharmim and Ahmed, {S. N.} and Anthony, {A. E.} and N. Barros and Beier, {E. W.} and A. Bellerive and B. Beltran and M. Bergevin and Biller, {S. D.} and R. Bonventre and K. Boudjemline and Boulay, {M. G.} and B. Cai and Callaghan, {E. J.} and J. Caravaca and Chan, {Y. D.} and D. Chauhan and M. Chen and Cleveland, {B. T.} and Cox, {G. A.} and X. Dai and H. Deng and Descamps, {F. B.} and Detwiler, {J. A.} and Doe, {P. J.} and G. Doucas and Drouin, {P. -L.} and M. Dunford and Elliott, {S. R.} and Evans, {H. C.} and Ewan, {G. T.} and J. Farine and H. Fergani and F. Fleurot and Ford, {R. J.} and Formaggio, {J. A.} and N. Gagnon and K. Gilje and Goon, {J. TM.} and K. Graham and E. Guillian and S. Habib and Hahn, {R. L.} and Hallin, {A. L.} and Hallman, {E. D.} and C. Howard and M. Huang and J. Law and J. Monroe",
year = "2019",
month = jun,
day = "18",
doi = "10.1103/PhysRevD.99.112007",
language = "English",
volume = "99",
pages = "1--19",
journal = "Physical Review D ",
issn = "1550-7998",
publisher = "American Physical Society",
number = "11",

}

### RIS

TY - JOUR

T1 - Measurement of neutron production in atmospheric neutrino interactions at the Sudbury Neutrino Observatory

AU - SNO Collaboration

AU - Aharmim, B.

AU - Ahmed, S. N.

AU - Anthony, A. E.

AU - Barros, N.

AU - Beier, E. W.

AU - Bellerive, A.

AU - Beltran, B.

AU - Bergevin, M.

AU - Biller, S. D.

AU - Bonventre, R.

AU - Boudjemline, K.

AU - Boulay, M. G.

AU - Cai, B.

AU - Callaghan, E. J.

AU - Caravaca, J.

AU - Chan, Y. D.

AU - Chauhan, D.

AU - Chen, M.

AU - Cleveland, B. T.

AU - Cox, G. A.

AU - Dai, X.

AU - Deng, H.

AU - Descamps, F. B.

AU - Detwiler, J. A.

AU - Doe, P. J.

AU - Doucas, G.

AU - Drouin, P. -L.

AU - Dunford, M.

AU - Elliott, S. R.

AU - Evans, H. C.

AU - Ewan, G. T.

AU - Farine, J.

AU - Fergani, H.

AU - Fleurot, F.

AU - Ford, R. J.

AU - Formaggio, J. A.

AU - Gagnon, N.

AU - Gilje, K.

AU - Goon, J. TM.

AU - Graham, K.

AU - Guillian, E.

AU - Habib, S.

AU - Hahn, R. L.

AU - Hallin, A. L.

AU - Hallman, E. D.

AU - Howard, C.

AU - Huang, M.

AU - Law, J.

AU - Monroe, J.

PY - 2019/6/18

Y1 - 2019/6/18

N2 - Neutron production in GeV-scale neutrino interactions is a poorly studied process. We have measured the neutron multiplicities in atmospheric neutrino interactions in the Sudbury Neutrino Observatory experiment and compared them to the prediction of a Monte Carlo simulation using GENIE and a minimally modified version of GEANT4. We analyzed 837 days of exposure corresponding to Phase I, using pure heavy water, and Phase II, using a mixture of Cl in heavy water. Neutrons produced in atmospheric neutrino interactions were identified with an efficiency of $15.3\%$ and $44.3\%$, for Phase I and II respectively. The neutron production is measured as a function of the visible energy of the neutrino interaction and, for charged current quasi-elastic interaction candidates, also as a function of the neutrino energy. This study is also performed classifying the complete sample into two pairs of event categories: charged current quasi-elastic and non charged current quasi-elastic, and $\nu_{\mu}$ and $\nu_e$. Results show good overall agreement between data and Monte Carlo for both phases, with some small tension with a statistical significance below $2\sigma$ for some intermediate energies.

AB - Neutron production in GeV-scale neutrino interactions is a poorly studied process. We have measured the neutron multiplicities in atmospheric neutrino interactions in the Sudbury Neutrino Observatory experiment and compared them to the prediction of a Monte Carlo simulation using GENIE and a minimally modified version of GEANT4. We analyzed 837 days of exposure corresponding to Phase I, using pure heavy water, and Phase II, using a mixture of Cl in heavy water. Neutrons produced in atmospheric neutrino interactions were identified with an efficiency of $15.3\%$ and $44.3\%$, for Phase I and II respectively. The neutron production is measured as a function of the visible energy of the neutrino interaction and, for charged current quasi-elastic interaction candidates, also as a function of the neutrino energy. This study is also performed classifying the complete sample into two pairs of event categories: charged current quasi-elastic and non charged current quasi-elastic, and $\nu_{\mu}$ and $\nu_e$. Results show good overall agreement between data and Monte Carlo for both phases, with some small tension with a statistical significance below $2\sigma$ for some intermediate energies.

KW - hep-ex

U2 - 10.1103/PhysRevD.99.112007

DO - 10.1103/PhysRevD.99.112007

M3 - Article

VL - 99

SP - 1

EP - 19

JO - Physical Review D

JF - Physical Review D

SN - 1550-7998

IS - 11

M1 - 112007

ER -