Neutrino oscillation physics potential of the T2K experiment

The T2K Collaboration

doi:10.1093/ptep/ptv031

Neutrino oscillation physics potential of the T2K experiment

The T2K Collaboration

University of Tokyo
Stony Brook University
Duke University
CCLRC Rutherford Appleton Laboratory
Kobe University
University of Bern
Colorado State University
IGFL, Université de Lyon, Université Lyon 1
University of Regina
University of Warwick
University of Oxford
Laboratoire de Probabilités et Modèles Aléatoires
Institute for Nuclear Physics
ETH Zurich
Politecnico di Bari
University of British Columbia
York University
Louisiana State University
University of Geneva
University of Victoria
The Barcelona Institute of Science and Technology
Imperial College London
University of Liverpool
The University of Sheffield
University of Sheffield
University of Colorado Boulder
INFN
University of Washington
Queen Mary University of London
University of Pittsburgh
University of Toronto
University of Naples Federico II
Warsaw University of Technology
Universite Paris-Saclay
Lancaster University
High Energy Accelerator Research Organization (KEK)
J-PARC
Miyagi University of Education
Wroclaw University
Institute for Nuclear Research of the Russian Academy of Sciences
TRIUMF
Kyoto University
Institute of Particle Physics
University of Silesia
University of Rochester
University of Winnipeg
National Centre for Nuclear Research (NCBJ)
Tokyo Metropolitan University
Boston University
University of Warsaw
University of Alberta
RWTH Aachen University
Okayama University
Long Beach VA and University of California
National Research Nuclear University MEPhI
University of Rome
Michigan State University
Ip Paris
Osaka City University
Joint Institute for Nuclear Research, Dubna
York College/The City University of New York

Résultats de recherche: Contribution à un journal › Article › Revue par des pairs

73 Citations (Scopus)

Résumé

The observation of the recent electron neutrino appearance in a muon neutrino beam and the high-precision measurement of the mixing angle Θ₁₃ have led to a re-evaluation of the physics potential of the T2K long-baseline neutrino oscillation experiment. Sensitivities are explored for CP violation in neutrinos, non-maximal sin² 2Θ₂₃, the octant of Θ₂₃, and the mass hierarchy, in addition to the measurements of δ_CP, sin² Θ₂₃, and Δm² ₃₂, for various combinations of ν-mode and ν-mode data-taking. With an exposure of 7.8 × 10²¹ protons-on-target, T2K can achieve 1 σ resolution of 0.050 (0.054) on sin² Θ₂₃ and 0.040 (0.045) × 10^-3 eV² on Δm² ₃₂ for 100% (50%) neutrino beam mode running assuming sin² Θ₂₃ = 0.5 and Δm² ₃₂ = 2.4 × 10^-3 eV². T2K will have sensitivity to the CP-violating phase δ_CP at 90% C.L. or better over a significant range. For example, if sin² 2Θ₂₃ is maximal (i.e. Θ₂₃ = 45°) the range is -115° < δ_CP < -60° for normal hierarchy and +50° < δ_CP < +130° for inverted hierarchy. When T2K data is combined with data from the NOνA experiment, the region of oscillation parameter space where there is sensitivity to observe a non-zero δ_CP is substantially increased compared to if each experiment is analyzed alone.

langue originale	Anglais
Numéro d'article	043C01
journal	Progress of Theoretical and Experimental Physics
Volume	2015
Numéro de publication	4
Les DOIs	https://doi.org/10.1093/ptep/ptv031
état	Publié - 1 avr. 2015

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10.1093/ptep/ptv031

Contient cette citation

@article{72515507c39541de95ff14123a4aff07,

title = "Neutrino oscillation physics potential of the T2K experiment",

abstract = "The observation of the recent electron neutrino appearance in a muon neutrino beam and the high-precision measurement of the mixing angle Θ13 have led to a re-evaluation of the physics potential of the T2K long-baseline neutrino oscillation experiment. Sensitivities are explored for CP violation in neutrinos, non-maximal sin2 2Θ23, the octant of Θ23, and the mass hierarchy, in addition to the measurements of δCP, sin2 Θ23, and Δm2 32, for various combinations of ν-mode and ν-mode data-taking. With an exposure of 7.8 × 1021 protons-on-target, T2K can achieve 1 σ resolution of 0.050 (0.054) on sin2 Θ23 and 0.040 (0.045) × 10-3 eV2 on Δm2 32 for 100\% (50\%) neutrino beam mode running assuming sin2 Θ23 = 0.5 and Δm2 32 = 2.4 × 10-3 eV2. T2K will have sensitivity to the CP-violating phase δCP at 90\% C.L. or better over a significant range. For example, if sin2 2Θ23 is maximal (i.e. Θ23 = 45°) the range is -115° < δCP < -60° for normal hierarchy and +50° < δCP < +130° for inverted hierarchy. When T2K data is combined with data from the NOνA experiment, the region of oscillation parameter space where there is sensitivity to observe a non-zero δCP is substantially increased compared to if each experiment is analyzed alone.",

author = "\{The T2K Collaboration\} and K. Abe and J. Adam and H. Aihara and T. Akiri and C. Andreopoulos and S. Aoki and A. Ariga and S. Assylbekov and D. Autiero and M. Barbi and Barker, \{G. J.\} and G. Barr and P. Bartet-Friburg and M. Bass and M. Batkiewicz and F. Bay and V. Berardi and Berger, \{B. E.\} and S. Berkman and S. Bhadra and Blaszczyk, \{F. D.M.\} and A. Blondel and C. Bojechko and S. Bordoni and Boyd, \{S. B.\} and D. Brailsford and A. Bravar and C. Bronner and N. Buchanan and Calland, \{R. G.\} and \{Caravaca Rodr{\'i}guez\}, J. and Cartwright, \{S. L.\} and R. Castillo and Catanesi, \{M. G.\} and A. Cervera and D. Cherdack and G. Christodoulou and A. Clifton and J. Coleman and Coleman, \{S. J.\} and G. Collazuol and K. Connolly and L. Cremonesi and A. Dabrowska and I. Danko and R. Das and S. Davis and O. Drapier and M. Gonin and B. Quilain",

note = "Publisher Copyright: {\textcopyright} The Author(s) 2015.",

year = "2015",

month = apr,

day = "1",

doi = "10.1093/ptep/ptv031",

language = "English",

volume = "2015",

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T1 - Neutrino oscillation physics potential of the T2K experiment

AU - The T2K Collaboration

AU - Abe, K.

AU - Adam, J.

AU - Aihara, H.

AU - Akiri, T.

AU - Andreopoulos, C.

AU - Aoki, S.

AU - Ariga, A.

AU - Assylbekov, S.

AU - Autiero, D.

AU - Barbi, M.

AU - Barker, G. J.

AU - Barr, G.

AU - Bartet-Friburg, P.

AU - Bass, M.

AU - Batkiewicz, M.

AU - Bay, F.

AU - Berardi, V.

AU - Berger, B. E.

AU - Berkman, S.

AU - Bhadra, S.

AU - Blaszczyk, F. D.M.

AU - Blondel, A.

AU - Bojechko, C.

AU - Bordoni, S.

AU - Boyd, S. B.

AU - Brailsford, D.

AU - Bravar, A.

AU - Bronner, C.

AU - Buchanan, N.

AU - Calland, R. G.

AU - Caravaca Rodríguez, J.

AU - Cartwright, S. L.

AU - Castillo, R.

AU - Catanesi, M. G.

AU - Cervera, A.

AU - Cherdack, D.

AU - Christodoulou, G.

AU - Clifton, A.

AU - Coleman, J.

AU - Coleman, S. J.

AU - Collazuol, G.

AU - Connolly, K.

AU - Cremonesi, L.

AU - Dabrowska, A.

AU - Danko, I.

AU - Das, R.

AU - Davis, S.

AU - Drapier, O.

AU - Gonin, M.

AU - Quilain, B.

PY - 2015/4/1

Y1 - 2015/4/1

N2 - The observation of the recent electron neutrino appearance in a muon neutrino beam and the high-precision measurement of the mixing angle Θ13 have led to a re-evaluation of the physics potential of the T2K long-baseline neutrino oscillation experiment. Sensitivities are explored for CP violation in neutrinos, non-maximal sin2 2Θ23, the octant of Θ23, and the mass hierarchy, in addition to the measurements of δCP, sin2 Θ23, and Δm2 32, for various combinations of ν-mode and ν-mode data-taking. With an exposure of 7.8 × 1021 protons-on-target, T2K can achieve 1 σ resolution of 0.050 (0.054) on sin2 Θ23 and 0.040 (0.045) × 10-3 eV2 on Δm2 32 for 100% (50%) neutrino beam mode running assuming sin2 Θ23 = 0.5 and Δm2 32 = 2.4 × 10-3 eV2. T2K will have sensitivity to the CP-violating phase δCP at 90% C.L. or better over a significant range. For example, if sin2 2Θ23 is maximal (i.e. Θ23 = 45°) the range is -115° < δCP < -60° for normal hierarchy and +50° < δCP < +130° for inverted hierarchy. When T2K data is combined with data from the NOνA experiment, the region of oscillation parameter space where there is sensitivity to observe a non-zero δCP is substantially increased compared to if each experiment is analyzed alone.

AB - The observation of the recent electron neutrino appearance in a muon neutrino beam and the high-precision measurement of the mixing angle Θ13 have led to a re-evaluation of the physics potential of the T2K long-baseline neutrino oscillation experiment. Sensitivities are explored for CP violation in neutrinos, non-maximal sin2 2Θ23, the octant of Θ23, and the mass hierarchy, in addition to the measurements of δCP, sin2 Θ23, and Δm2 32, for various combinations of ν-mode and ν-mode data-taking. With an exposure of 7.8 × 1021 protons-on-target, T2K can achieve 1 σ resolution of 0.050 (0.054) on sin2 Θ23 and 0.040 (0.045) × 10-3 eV2 on Δm2 32 for 100% (50%) neutrino beam mode running assuming sin2 Θ23 = 0.5 and Δm2 32 = 2.4 × 10-3 eV2. T2K will have sensitivity to the CP-violating phase δCP at 90% C.L. or better over a significant range. For example, if sin2 2Θ23 is maximal (i.e. Θ23 = 45°) the range is -115° < δCP < -60° for normal hierarchy and +50° < δCP < +130° for inverted hierarchy. When T2K data is combined with data from the NOνA experiment, the region of oscillation parameter space where there is sensitivity to observe a non-zero δCP is substantially increased compared to if each experiment is analyzed alone.

U2 - 10.1093/ptep/ptv031

DO - 10.1093/ptep/ptv031

M3 - Article

AN - SCOPUS:84929100168

SN - 2050-3911

VL - 2015

JO - Progress of Theoretical and Experimental Physics

JF - Progress of Theoretical and Experimental Physics

IS - 4

M1 - 043C01

ER -

Neutrino oscillation physics potential of the T2K experiment

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