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Evidence of electron neutrino appearance in a muon neutrino beam

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Evidence of electron neutrino appearance in a muon neutrino beam. / T2K Collaboration.
In: Physical Review D, Vol. 88, No. 3, 032002, 05.08.2013.

Research output: Contribution to Journal/MagazineJournal articlepeer-review

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T2K Collaboration 2013, 'Evidence of electron neutrino appearance in a muon neutrino beam', Physical Review D, vol. 88, no. 3, 032002. https://doi.org/10.1103/PhysRevD.88.032002

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Vancouver

T2K Collaboration. Evidence of electron neutrino appearance in a muon neutrino beam. Physical Review D. 2013 Aug 5;88(3):032002. doi: 10.1103/PhysRevD.88.032002

Author

T2K Collaboration. / Evidence of electron neutrino appearance in a muon neutrino beam. In: Physical Review D. 2013 ; Vol. 88, No. 3.

Bibtex

@article{f6eda7d9b30b49f480820e08b11e139a,
title = "Evidence of electron neutrino appearance in a muon neutrino beam",
abstract = "The T2K collaboration reports evidence for electron neutrino appearance at the atmospheric mass splitting, |\Delta m_{32}^2|=2.4x10^{-3} eV^2. 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\pm0.4(syst.) events is expected. The background-only hypothesis is rejected with a p-value of 0.0009 (3.1\sigma), and a fit assuming \nu_{\mu}->\nu_e oscillations with sin^2(2\theta_{23})=1, \delta_{CP}=0 and |\Delta m_{32}^2|=2.4x10^{-3} eV^2 yields sin^2(2\theta_{13})=0.088^{+0.049}_{-0.039}(stat.+syst.).",
keywords = "ABSORPTION CROSS-SECTIONS, MOMENTUM RANGE, GEV-C, T2K EXPERIMENT, ENERGY-RANGE, NUCLEI, DETECTOR, PROTONS, FLUX, PIONS",
author = "N. Abgrall and H. Aihara and T. Akiri and {B. Albert}, J. and C. Andreopoulos and S. Aoki and A. Ariga and T. Ariga and S. Assylbekov and D. Autiero and M. Barbi and {J. Barker}, G. and G. Barr and M. Bass and M. Batkiewicz and F. Bay and {W. Bentham}, S. and V. Berardi and {E. Berger}, B. and S. Berkman and I. Bertram and D. Beznosko and S. Bhadra and {d. M. Blaszczyk}, F. and A. Blondel and C. Bojechko and S. Boyd and Dominic Brailsford and A. Bravar and C. Bronner and {G. Brook-Roberge}, D. and N. Buchanan and {G. Calland}, R. and {Caravaca Rodriguez}, J. and {L. Cartwright}, S. and R. Castillo and {G. Catanesi}, M. and A. Cervera and D. Cherdack and G. Christodoulou and A. Clifton and J. Coleman and Thomas Dealtry and {J. Finch}, A. and N. Grant and {L. Kormos}, L. and Helen O'Keeffe and {N. Ratoff}, P. and M. Reeves and L. Southwell and {T2K Collaboration}",
note = "41 pages, 41 figures {\textcopyright} 2013 American Physical Society",
year = "2013",
month = aug,
day = "5",
doi = "10.1103/PhysRevD.88.032002",
language = "English",
volume = "88",
journal = "Physical Review D",
issn = "1550-7998",
publisher = "American Physical Society",
number = "3",

}

RIS

TY - JOUR

T1 - Evidence of electron neutrino appearance in a muon neutrino beam

AU - Abgrall, N.

AU - Aihara, H.

AU - Akiri, T.

AU - B. Albert, J.

AU - Andreopoulos, C.

AU - Aoki, S.

AU - Ariga, A.

AU - Ariga, T.

AU - Assylbekov, S.

AU - Autiero, D.

AU - Barbi, M.

AU - J. Barker, G.

AU - Barr, G.

AU - Bass, M.

AU - Batkiewicz, M.

AU - Bay, F.

AU - W. Bentham, S.

AU - Berardi, V.

AU - E. Berger, B.

AU - Berkman, S.

AU - Bertram, I.

AU - Beznosko, D.

AU - Bhadra, S.

AU - d. M. Blaszczyk, F.

AU - Blondel, A.

AU - Bojechko, C.

AU - Boyd, S.

AU - Brailsford, Dominic

AU - Bravar, A.

AU - Bronner, C.

AU - G. Brook-Roberge, D.

AU - Buchanan, N.

AU - G. Calland, R.

AU - Caravaca Rodriguez, J.

AU - L. Cartwright, S.

AU - Castillo, R.

AU - G. Catanesi, M.

AU - Cervera, A.

AU - Cherdack, D.

AU - Christodoulou, G.

AU - Clifton, A.

AU - Coleman, J.

AU - Dealtry, Thomas

AU - J. Finch, A.

AU - Grant, N.

AU - L. Kormos, L.

AU - O'Keeffe, Helen

AU - N. Ratoff, P.

AU - Reeves, M.

AU - Southwell, L.

AU - T2K Collaboration

N1 - 41 pages, 41 figures © 2013 American Physical Society

PY - 2013/8/5

Y1 - 2013/8/5

N2 - The T2K collaboration reports evidence for electron neutrino appearance at the atmospheric mass splitting, |\Delta m_{32}^2|=2.4x10^{-3} eV^2. 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\pm0.4(syst.) events is expected. The background-only hypothesis is rejected with a p-value of 0.0009 (3.1\sigma), and a fit assuming \nu_{\mu}->\nu_e oscillations with sin^2(2\theta_{23})=1, \delta_{CP}=0 and |\Delta m_{32}^2|=2.4x10^{-3} eV^2 yields sin^2(2\theta_{13})=0.088^{+0.049}_{-0.039}(stat.+syst.).

AB - The T2K collaboration reports evidence for electron neutrino appearance at the atmospheric mass splitting, |\Delta m_{32}^2|=2.4x10^{-3} eV^2. 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\pm0.4(syst.) events is expected. The background-only hypothesis is rejected with a p-value of 0.0009 (3.1\sigma), and a fit assuming \nu_{\mu}->\nu_e oscillations with sin^2(2\theta_{23})=1, \delta_{CP}=0 and |\Delta m_{32}^2|=2.4x10^{-3} eV^2 yields sin^2(2\theta_{13})=0.088^{+0.049}_{-0.039}(stat.+syst.).

KW - ABSORPTION CROSS-SECTIONS

KW - MOMENTUM RANGE

KW - GEV-C

KW - T2K EXPERIMENT

KW - ENERGY-RANGE

KW - NUCLEI

KW - DETECTOR

KW - PROTONS

KW - FLUX

KW - PIONS

UR - http://www.scopus.com/inward/record.url?scp=84883472068&partnerID=8YFLogxK

U2 - 10.1103/PhysRevD.88.032002

DO - 10.1103/PhysRevD.88.032002

M3 - Journal article

VL - 88

JO - Physical Review D

JF - Physical Review D

SN - 1550-7998

IS - 3

M1 - 032002

ER -