Evidence of electron neutrino appearance in a muon neutrino beam
The T2K Collaboration reports evidence for electron neutrino appearance at the atmospheric mass splitting, |Δm322|≈2.4×10-3 eV2. An excess of electron neutrino interactions over background is observed from a muon neutrino beam with a peak energy of 0.6 GeV at the Super-Kamiokande (SK) detector 295 k...
| Päätekijät: | , , , , , , , , , , , , , , , , , , , , , , , , |
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| Aineistotyyppi: | Journal article |
| Kieli: | English |
| Julkaistu: |
2013
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| _version_ | 1826266225741660160 |
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| author | Abe, K Abgrall, N Aihara, H Akiri, T Albert, J Andreopoulos, C Aoki, S Ariga, A Ariga, T Assylbekov, S Autiero, D Barbi, M Barker, G Barr, G Bass, M Batkiewicz, M Bay, F Bentham, S Berardi, V Berger, B Berkman, S Bertram, I Beznosko, D Bhadra, S Blaszczyk, F |
| author_facet | Abe, K Abgrall, N Aihara, H Akiri, T Albert, J Andreopoulos, C Aoki, S Ariga, A Ariga, T Assylbekov, S Autiero, D Barbi, M Barker, G Barr, G Bass, M Batkiewicz, M Bay, F Bentham, S Berardi, V Berger, B Berkman, S Bertram, I Beznosko, D Bhadra, S Blaszczyk, F |
| author_sort | Abe, K |
| collection | OXFORD |
| description | The T2K Collaboration reports evidence for electron neutrino appearance at the atmospheric mass splitting, |Δm322|≈2.4×10-3 eV2. An excess of electron neutrino interactions over background is observed from a muon neutrino beam with a peak energy of 0.6 GeV at the Super-Kamiokande (SK) detector 295 km from the beam's origin. Signal and background predictions are constrained by data from near detectors located 280 m from the neutrino production target. We observe 11 electron neutrino candidate events at the SK detector when a background of 3.3±0.4(syst) events is expected. The background-only hypothesis is rejected with a p value of 0.0009 (3.1σ), and a fit assuming νμ→νe oscillations with sinâ¡22θ23=1, δCP=0 and |Δm322|=2.4×10-3 eV2 yields sinâ¡22θ13=0.088-0.039+0. 049(stat+syst). © 2013 American Physical Society. |
| first_indexed | 2024-03-06T20:35:41Z |
| format | Journal article |
| id | oxford-uuid:328aafdb-68b9-4dc4-a443-ae7e162472a5 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-06T20:35:41Z |
| publishDate | 2013 |
| record_format | dspace |
| spelling | oxford-uuid:328aafdb-68b9-4dc4-a443-ae7e162472a52022-03-26T13:14:50ZEvidence of electron neutrino appearance in a muon neutrino beamJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:328aafdb-68b9-4dc4-a443-ae7e162472a5EnglishSymplectic Elements at Oxford2013Abe, KAbgrall, NAihara, HAkiri, TAlbert, JAndreopoulos, CAoki, SAriga, AAriga, TAssylbekov, SAutiero, DBarbi, MBarker, GBarr, GBass, MBatkiewicz, MBay, FBentham, SBerardi, VBerger, BBerkman, SBertram, IBeznosko, DBhadra, SBlaszczyk, FThe T2K Collaboration reports evidence for electron neutrino appearance at the atmospheric mass splitting, |Δm322|≈2.4×10-3 eV2. An excess of electron neutrino interactions over background is observed from a muon neutrino beam with a peak energy of 0.6 GeV at the Super-Kamiokande (SK) detector 295 km from the beam's origin. Signal and background predictions are constrained by data from near detectors located 280 m from the neutrino production target. We observe 11 electron neutrino candidate events at the SK detector when a background of 3.3±0.4(syst) events is expected. The background-only hypothesis is rejected with a p value of 0.0009 (3.1σ), and a fit assuming νμ→νe oscillations with sinâ¡22θ23=1, δCP=0 and |Δm322|=2.4×10-3 eV2 yields sinâ¡22θ13=0.088-0.039+0. 049(stat+syst). © 2013 American Physical Society. |
| spellingShingle | Abe, K Abgrall, N Aihara, H Akiri, T Albert, J Andreopoulos, C Aoki, S Ariga, A Ariga, T Assylbekov, S Autiero, D Barbi, M Barker, G Barr, G Bass, M Batkiewicz, M Bay, F Bentham, S Berardi, V Berger, B Berkman, S Bertram, I Beznosko, D Bhadra, S Blaszczyk, F Evidence of electron neutrino appearance in a muon neutrino beam |
| title | Evidence of electron neutrino appearance in a muon neutrino beam |
| title_full | Evidence of electron neutrino appearance in a muon neutrino beam |
| title_fullStr | Evidence of electron neutrino appearance in a muon neutrino beam |
| title_full_unstemmed | Evidence of electron neutrino appearance in a muon neutrino beam |
| title_short | Evidence of electron neutrino appearance in a muon neutrino beam |
| title_sort | evidence of electron neutrino appearance in a muon neutrino beam |
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