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Title: Neutrino observations from the Sudbury Neutrino Observatory

Abstract

The Sudbury Neutrino Observatory (SNO) is a water imaging Cherenkov detector. Its usage of 1000 metric tons of D{sub 2}O as target allows the SNO detector to make a solar-model independent test of the neutrino oscillation hypothesis by simultaneously measuring the solar {nu}{sub e} flux and the total flux of all active neutrino species. Solar neutrinos from the decay of {sup 8}B have been detected at SNO by the charged-current (CC) interaction on the deuteron and by the elastic scattering (ES) of electrons. While the CC reaction is sensitive exclusively to {nu}{sub e}, the ES reaction also has a small sensitivity to {nu}{sub {mu}} and {nu}{sub {tau}}. In this paper, recent solar neutrino results from the SNO experiment are presented. It is demonstrated that the solar flux from {sup 8}B decay as measured from the ES reaction rate under the no-oscillation assumption is consistent with the high precision ES measurement by the Super-Kamiokande experiment. The {nu}{sub e} flux deduced from the CC reaction rate in SNO differs from the Super-Kamiokande ES results by 3.3{sigma}. This is evidence for an active neutrino component, in additional to {nu}{sub e}, in the solar neutrino flux. These results also allow the first experimental determinationmore » of the total active {sup 8}B neutrino flux from the Sun, and is found to be in good agreement with solar model predictions.« less

Authors:
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Publication Date:
Research Org.:
COLLABORATION - Sudbury Neutrino ObservatoryCollaboration
OSTI Identifier:
892202
Report Number(s):
LBNL-50719
R&D Project: NSNO; BnR: KB0401022; TRN: US0605563
DOE Contract Number:  
DE-AC02-05CH11231
Resource Type:
Conference
Resource Relation:
Conference: International Nuclear Physics Conference 2001,Berkeley, CA, 2001
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; 73 NUCLEAR PHYSICS AND RADIATION PHYSICS; CHERENKOV COUNTERS; DECAY; DEUTERONS; ELASTIC SCATTERING; ELECTRONS; METRICS; NEUTRINO OSCILLATION; NEUTRINOS; NUCLEAR PHYSICS; REACTION KINETICS; SENSITIVITY; SOLAR FLUX; SOLAR NEUTRINOS; STAR MODELS; SUDBURY NEUTRINO OBSERVATORY; SUN; TARGETS; solar neutrinos Sudbury Neutrino Observatory

Citation Formats

Ahmad, Q.R., Allen, R.C., Andersen, T.C., Anglin, J.D., Barton,J.C., Beier, E.W., Bercovitch, M., Bigu, J., Biller, S.D., Black, R.A., Blevis, I., Boardman, R.J., Boger, J., Bonvin, E., Boulay, M.G., Bowler,M.G., Bowles, T.J., Brice, S.J., Browne, M.C., Bullard, T.V., Buhler, G., Cameron, J., Chan, Y.D., Chen, H.H., Chen, M., Chen, X., Cleveland, B.T., Clifford, E.T.H., Cowan, J.H.M., Cowen, D.F., Cox, G.A., Dai, X., Dalnoki-Veress, F., Davidson, W.F., Doe, P.J., Doucas, G., Dragowsky,M.R., Duba, C.A., Duncan, F.A., Dunford, M., Dunmore, J.A., Earle, E.D., Elliott, S.R., Evans, H.C., Ewan, G.T., Farine, J., Fergani, H., Ferraris, A.P., Ford, R.J., Formaggio, J.A., Fowler, M.M., Frame, K., Frank, E.D., Frati, W., Gagnon, N., Germani, J.V., Gil, S., Graham, K., Grant, D.R., Hahn, R.L., Hallin, A.L., Hallman, E.D., Hamer, A.S., Hamian, A.A., Handler, W.B., Haq, R.U., Hargrove, C.K., Harvey, P.J., Hazama, R., Heeger, K.M., Heintzelman, W.J., Heise, J., Helmer, R.L., Hepburn, J.D., Heron, H., Hewett, J., Hime, A., Hykawy, J.G., Isaac,M.C.P., Jagam, P., Jelley, N.A., Jillings, C., Jonkmans, G., Kazkaz, K., Keener, P.T., Klein, J.R., Knox, A.B., Komar, R.J., Kouzes, R., Kutter,T., Kyba, C.C.M., Law, J., Lawson, I.T., Lay, M., Lee, H.W., Lesko, K.T., Leslie, J.R., Levine, I., Locke, W., Luoma, S., Lyon, J., Majerus, S., Mak, H.B., Maneira, J., Manor, J., Marino, A.D., McCauley, N., McDonald,D.S., McDonald, A.B., McFarlane, K., McGregor, G., Meijer, R., Mifflin,C., Miller, G.G., Milton, G., Moffat, B.A., Moorhead, M., Nally, C.W., Neubauer, M.S., Newcomer, F.M., Ng, H.S., Noble, A.J., Norman, E.B., Novikov, V.M., O'Neill, M., Okada, C.E., Ollerhead, R.W., Omori, M., Orrell, J.L., Oser, S.M., Poon, A.W.P., Radcliffe, T.J., Roberge, A., Robertson, B.C., Robertson, R.G.H., Rosendahl, S.S.E., Rowley, J.K., Rusu, V.L., Saettler, E., Schaffer, K.K., Schwendener,M.H., Schulke, A., Seifert, H., Shatkay, M., Simpson, J.J., Sims, C.J., and et al. Neutrino observations from the Sudbury Neutrino Observatory. United States: N. p., 2001. Web.
Ahmad, Q.R., Allen, R.C., Andersen, T.C., Anglin, J.D., Barton,J.C., Beier, E.W., Bercovitch, M., Bigu, J., Biller, S.D., Black, R.A., Blevis, I., Boardman, R.J., Boger, J., Bonvin, E., Boulay, M.G., Bowler,M.G., Bowles, T.J., Brice, S.J., Browne, M.C., Bullard, T.V., Buhler, G., Cameron, J., Chan, Y.D., Chen, H.H., Chen, M., Chen, X., Cleveland, B.T., Clifford, E.T.H., Cowan, J.H.M., Cowen, D.F., Cox, G.A., Dai, X., Dalnoki-Veress, F., Davidson, W.F., Doe, P.J., Doucas, G., Dragowsky,M.R., Duba, C.A., Duncan, F.A., Dunford, M., Dunmore, J.A., Earle, E.D., Elliott, S.R., Evans, H.C., Ewan, G.T., Farine, J., Fergani, H., Ferraris, A.P., Ford, R.J., Formaggio, J.A., Fowler, M.M., Frame, K., Frank, E.D., Frati, W., Gagnon, N., Germani, J.V., Gil, S., Graham, K., Grant, D.R., Hahn, R.L., Hallin, A.L., Hallman, E.D., Hamer, A.S., Hamian, A.A., Handler, W.B., Haq, R.U., Hargrove, C.K., Harvey, P.J., Hazama, R., Heeger, K.M., Heintzelman, W.J., Heise, J., Helmer, R.L., Hepburn, J.D., Heron, H., Hewett, J., Hime, A., Hykawy, J.G., Isaac,M.C.P., Jagam, P., Jelley, N.A., Jillings, C., Jonkmans, G., Kazkaz, K., Keener, P.T., Klein, J.R., Knox, A.B., Komar, R.J., Kouzes, R., Kutter,T., Kyba, C.C.M., Law, J., Lawson, I.T., Lay, M., Lee, H.W., Lesko, K.T., Leslie, J.R., Levine, I., Locke, W., Luoma, S., Lyon, J., Majerus, S., Mak, H.B., Maneira, J., Manor, J., Marino, A.D., McCauley, N., McDonald,D.S., McDonald, A.B., McFarlane, K., McGregor, G., Meijer, R., Mifflin,C., Miller, G.G., Milton, G., Moffat, B.A., Moorhead, M., Nally, C.W., Neubauer, M.S., Newcomer, F.M., Ng, H.S., Noble, A.J., Norman, E.B., Novikov, V.M., O'Neill, M., Okada, C.E., Ollerhead, R.W., Omori, M., Orrell, J.L., Oser, S.M., Poon, A.W.P., Radcliffe, T.J., Roberge, A., Robertson, B.C., Robertson, R.G.H., Rosendahl, S.S.E., Rowley, J.K., Rusu, V.L., Saettler, E., Schaffer, K.K., Schwendener,M.H., Schulke, A., Seifert, H., Shatkay, M., Simpson, J.J., Sims, C.J., & et al. Neutrino observations from the Sudbury Neutrino Observatory. United States.
Ahmad, Q.R., Allen, R.C., Andersen, T.C., Anglin, J.D., Barton,J.C., Beier, E.W., Bercovitch, M., Bigu, J., Biller, S.D., Black, R.A., Blevis, I., Boardman, R.J., Boger, J., Bonvin, E., Boulay, M.G., Bowler,M.G., Bowles, T.J., Brice, S.J., Browne, M.C., Bullard, T.V., Buhler, G., Cameron, J., Chan, Y.D., Chen, H.H., Chen, M., Chen, X., Cleveland, B.T., Clifford, E.T.H., Cowan, J.H.M., Cowen, D.F., Cox, G.A., Dai, X., Dalnoki-Veress, F., Davidson, W.F., Doe, P.J., Doucas, G., Dragowsky,M.R., Duba, C.A., Duncan, F.A., Dunford, M., Dunmore, J.A., Earle, E.D., Elliott, S.R., Evans, H.C., Ewan, G.T., Farine, J., Fergani, H., Ferraris, A.P., Ford, R.J., Formaggio, J.A., Fowler, M.M., Frame, K., Frank, E.D., Frati, W., Gagnon, N., Germani, J.V., Gil, S., Graham, K., Grant, D.R., Hahn, R.L., Hallin, A.L., Hallman, E.D., Hamer, A.S., Hamian, A.A., Handler, W.B., Haq, R.U., Hargrove, C.K., Harvey, P.J., Hazama, R., Heeger, K.M., Heintzelman, W.J., Heise, J., Helmer, R.L., Hepburn, J.D., Heron, H., Hewett, J., Hime, A., Hykawy, J.G., Isaac,M.C.P., Jagam, P., Jelley, N.A., Jillings, C., Jonkmans, G., Kazkaz, K., Keener, P.T., Klein, J.R., Knox, A.B., Komar, R.J., Kouzes, R., Kutter,T., Kyba, C.C.M., Law, J., Lawson, I.T., Lay, M., Lee, H.W., Lesko, K.T., Leslie, J.R., Levine, I., Locke, W., Luoma, S., Lyon, J., Majerus, S., Mak, H.B., Maneira, J., Manor, J., Marino, A.D., McCauley, N., McDonald,D.S., McDonald, A.B., McFarlane, K., McGregor, G., Meijer, R., Mifflin,C., Miller, G.G., Milton, G., Moffat, B.A., Moorhead, M., Nally, C.W., Neubauer, M.S., Newcomer, F.M., Ng, H.S., Noble, A.J., Norman, E.B., Novikov, V.M., O'Neill, M., Okada, C.E., Ollerhead, R.W., Omori, M., Orrell, J.L., Oser, S.M., Poon, A.W.P., Radcliffe, T.J., Roberge, A., Robertson, B.C., Robertson, R.G.H., Rosendahl, S.S.E., Rowley, J.K., Rusu, V.L., Saettler, E., Schaffer, K.K., Schwendener,M.H., Schulke, A., Seifert, H., Shatkay, M., Simpson, J.J., Sims, C.J., and et al. Mon . "Neutrino observations from the Sudbury Neutrino Observatory". United States. doi:. https://www.osti.gov/servlets/purl/892202.
@article{osti_892202,
title = {Neutrino observations from the Sudbury Neutrino Observatory},
author = {Ahmad, Q.R. and Allen, R.C. and Andersen, T.C. and Anglin, J.D. and Barton,J.C. and Beier, E.W. and Bercovitch, M. and Bigu, J. and Biller, S.D. and Black, R.A. and Blevis, I. and Boardman, R.J. and Boger, J. and Bonvin, E. and Boulay, M.G. and Bowler,M.G. and Bowles, T.J. and Brice, S.J. and Browne, M.C. and Bullard, T.V. and Buhler, G. and Cameron, J. and Chan, Y.D. and Chen, H.H. and Chen, M. and Chen, X. and Cleveland, B.T. and Clifford, E.T.H. and Cowan, J.H.M. and Cowen, D.F. and Cox, G.A. and Dai, X. and Dalnoki-Veress, F. and Davidson, W.F. and Doe, P.J. and Doucas, G. and Dragowsky,M.R. and Duba, C.A. and Duncan, F.A. and Dunford, M. and Dunmore, J.A. and Earle, E.D. and Elliott, S.R. and Evans, H.C. and Ewan, G.T. and Farine, J. and Fergani, H. and Ferraris, A.P. and Ford, R.J. and Formaggio, J.A. and Fowler, M.M. and Frame, K. and Frank, E.D. and Frati, W. and Gagnon, N. and Germani, J.V. and Gil, S. and Graham, K. and Grant, D.R. and Hahn, R.L. and Hallin, A.L. and Hallman, E.D. and Hamer, A.S. and Hamian, A.A. and Handler, W.B. and Haq, R.U. and Hargrove, C.K. and Harvey, P.J. and Hazama, R. and Heeger, K.M. and Heintzelman, W.J. and Heise, J. and Helmer, R.L. and Hepburn, J.D. and Heron, H. and Hewett, J. and Hime, A. and Hykawy, J.G. and Isaac,M.C.P. and Jagam, P. and Jelley, N.A. and Jillings, C. and Jonkmans, G. and Kazkaz, K. and Keener, P.T. and Klein, J.R. and Knox, A.B. and Komar, R.J. and Kouzes, R. and Kutter,T. and Kyba, C.C.M. and Law, J. and Lawson, I.T. and Lay, M. and Lee, H.W. and Lesko, K.T. and Leslie, J.R. and Levine, I. and Locke, W. and Luoma, S. and Lyon, J. and Majerus, S. and Mak, H.B. and Maneira, J. and Manor, J. and Marino, A.D. and McCauley, N. and McDonald,D.S. and McDonald, A.B. and McFarlane, K. and McGregor, G. and Meijer, R. and Mifflin,C. and Miller, G.G. and Milton, G. and Moffat, B.A. and Moorhead, M. and Nally, C.W. and Neubauer, M.S. and Newcomer, F.M. and Ng, H.S. and Noble, A.J. and Norman, E.B. and Novikov, V.M. and O'Neill, M. and Okada, C.E. and Ollerhead, R.W. and Omori, M. and Orrell, J.L. and Oser, S.M. and Poon, A.W.P. and Radcliffe, T.J. and Roberge, A. and Robertson, B.C. and Robertson, R.G.H. and Rosendahl, S.S.E. and Rowley, J.K. and Rusu, V.L. and Saettler, E. and Schaffer, K.K. and Schwendener,M.H. and Schulke, A. and Seifert, H. and Shatkay, M. and Simpson, J.J. and Sims, C.J. and et al.},
abstractNote = {The Sudbury Neutrino Observatory (SNO) is a water imaging Cherenkov detector. Its usage of 1000 metric tons of D{sub 2}O as target allows the SNO detector to make a solar-model independent test of the neutrino oscillation hypothesis by simultaneously measuring the solar {nu}{sub e} flux and the total flux of all active neutrino species. Solar neutrinos from the decay of {sup 8}B have been detected at SNO by the charged-current (CC) interaction on the deuteron and by the elastic scattering (ES) of electrons. While the CC reaction is sensitive exclusively to {nu}{sub e}, the ES reaction also has a small sensitivity to {nu}{sub {mu}} and {nu}{sub {tau}}. In this paper, recent solar neutrino results from the SNO experiment are presented. It is demonstrated that the solar flux from {sup 8}B decay as measured from the ES reaction rate under the no-oscillation assumption is consistent with the high precision ES measurement by the Super-Kamiokande experiment. The {nu}{sub e} flux deduced from the CC reaction rate in SNO differs from the Super-Kamiokande ES results by 3.3{sigma}. This is evidence for an active neutrino component, in additional to {nu}{sub e}, in the solar neutrino flux. These results also allow the first experimental determination of the total active {sup 8}B neutrino flux from the Sun, and is found to be in good agreement with solar model predictions.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Mon Sep 24 00:00:00 EDT 2001},
month = {Mon Sep 24 00:00:00 EDT 2001}
}

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