Direct evidence for neutrino flavor transformation from neutral-current interactions in the Sudbury Neutrino Observatory.
Observations of neutral-current nu interactions on deuterium in the Sudbury Neutrino Observatory are reported. Using the neutral current (NC), elastic scattering, and charged current reactions and assuming the standard 8B shape, the nu(e) component of the 8B solar flux is phis(e) = 1.76(+0.05)(-0.05...
| Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , |
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| Format: | Journal article |
| Sprog: | English |
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2002
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| _version_ | 1826278010466074624 |
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| author | Ahmad, Q Allen, R Andersen, T D Anglin, J Barton, J Beier, E Bercovitch, M Bigu, J Biller, S Black, R Blevis, I Boardman, R Boger, J Bonvin, E Boulay, MG Bowler, MG Bowles, T Brice, S Browne, M Bullard, T Bühler, G Cameron, J Chan, Y Chen, H Chen, M |
| author_facet | Ahmad, Q Allen, R Andersen, T D Anglin, J Barton, J Beier, E Bercovitch, M Bigu, J Biller, S Black, R Blevis, I Boardman, R Boger, J Bonvin, E Boulay, MG Bowler, MG Bowles, T Brice, S Browne, M Bullard, T Bühler, G Cameron, J Chan, Y Chen, H Chen, M |
| author_sort | Ahmad, Q |
| collection | OXFORD |
| description | Observations of neutral-current nu interactions on deuterium in the Sudbury Neutrino Observatory are reported. Using the neutral current (NC), elastic scattering, and charged current reactions and assuming the standard 8B shape, the nu(e) component of the 8B solar flux is phis(e) = 1.76(+0.05)(-0.05)(stat)(+0.09)(-0.09)(syst) x 10(6) cm(-2) s(-1) for a kinetic energy threshold of 5 MeV. The non-nu(e) component is phi(mu)(tau) = 3.41(+0.45)(-0.45)(stat)(+0.48)(-0.45)(syst) x 10(6) cm(-2) s(-1), 5.3sigma greater than zero, providing strong evidence for solar nu(e) flavor transformation. The total flux measured with the NC reaction is phi(NC) = 5.09(+0.44)(-0.43)(stat)(+0.46)(-0.43)(syst) x 10(6) cm(-2) s(-1), consistent with solar models. |
| first_indexed | 2024-03-06T23:37:32Z |
| format | Journal article |
| id | oxford-uuid:6e2aff1f-2ce2-4341-98bc-b2e25c92fcc4 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-06T23:37:32Z |
| publishDate | 2002 |
| record_format | dspace |
| spelling | oxford-uuid:6e2aff1f-2ce2-4341-98bc-b2e25c92fcc42022-03-26T19:22:40ZDirect evidence for neutrino flavor transformation from neutral-current interactions in the Sudbury Neutrino Observatory.Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:6e2aff1f-2ce2-4341-98bc-b2e25c92fcc4EnglishSymplectic Elements at Oxford2002Ahmad, QAllen, RAndersen, TD Anglin, JBarton, JBeier, EBercovitch, MBigu, JBiller, SBlack, RBlevis, IBoardman, RBoger, JBonvin, EBoulay, MGBowler, MGBowles, TBrice, SBrowne, MBullard, TBühler, GCameron, JChan, YChen, HChen, MObservations of neutral-current nu interactions on deuterium in the Sudbury Neutrino Observatory are reported. Using the neutral current (NC), elastic scattering, and charged current reactions and assuming the standard 8B shape, the nu(e) component of the 8B solar flux is phis(e) = 1.76(+0.05)(-0.05)(stat)(+0.09)(-0.09)(syst) x 10(6) cm(-2) s(-1) for a kinetic energy threshold of 5 MeV. The non-nu(e) component is phi(mu)(tau) = 3.41(+0.45)(-0.45)(stat)(+0.48)(-0.45)(syst) x 10(6) cm(-2) s(-1), 5.3sigma greater than zero, providing strong evidence for solar nu(e) flavor transformation. The total flux measured with the NC reaction is phi(NC) = 5.09(+0.44)(-0.43)(stat)(+0.46)(-0.43)(syst) x 10(6) cm(-2) s(-1), consistent with solar models. |
| spellingShingle | Ahmad, Q Allen, R Andersen, T D Anglin, J Barton, J Beier, E Bercovitch, M Bigu, J Biller, S Black, R Blevis, I Boardman, R Boger, J Bonvin, E Boulay, MG Bowler, MG Bowles, T Brice, S Browne, M Bullard, T Bühler, G Cameron, J Chan, Y Chen, H Chen, M Direct evidence for neutrino flavor transformation from neutral-current interactions in the Sudbury Neutrino Observatory. |
| title | Direct evidence for neutrino flavor transformation from neutral-current interactions in the Sudbury Neutrino Observatory. |
| title_full | Direct evidence for neutrino flavor transformation from neutral-current interactions in the Sudbury Neutrino Observatory. |
| title_fullStr | Direct evidence for neutrino flavor transformation from neutral-current interactions in the Sudbury Neutrino Observatory. |
| title_full_unstemmed | Direct evidence for neutrino flavor transformation from neutral-current interactions in the Sudbury Neutrino Observatory. |
| title_short | Direct evidence for neutrino flavor transformation from neutral-current interactions in the Sudbury Neutrino Observatory. |
| title_sort | direct evidence for neutrino flavor transformation from neutral current interactions in the sudbury neutrino observatory |
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