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Title: Physics potential of a long-baseline neutrino oscillation experiment using a J-PARC neutrino beam and Hyper-Kamiokande

Journal Article · · Progress of Theoretical and Experimental Physics
DOI:https://doi.org/10.1093/ptep/ptv061· OSTI ID:1454595
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Hyper-Kamiokande will be a next generation underground water Cherenkov detector with a total (fiducial) mass of 0.99 (0.56) million metric tons, approximately 20 (25) times larger than that of Super-Kamiokande. One of the main goals of Hyper-Kamiokande is the study of CP asymmetry in the lepton sector using accelerator neutrino and anti-neutrino beams. In this paper, the physics potential of a long baseline neutrino experiment using the Hyper-Kamiokande detector and a neutrino beam from the J-PARC proton synchrotron is presented. The analysis uses the framework and systematic uncertainties derived from the ongoing T2K experiment. With a total exposure of 7.5 MW × 107 sec integrated proton beam power (corresponding to 1.56×1022 protons on target with a 30 GeV proton beam) to a 2.5-degree off-axis neutrino beam, it is expected that the leptonic CP phase δCP can be determined to better than 19 degrees for all possible values of δCP, and CP violation can be established with a statistical significance of more than 3σ (5σ) for 76% (58%) of the δCP parameter space. Using both νe appearance and νμ disappearance data, the expected 1σ uncertainty of sin2θ23 is 0.015(0.006) for sin2θ23=0.5(0.45).

Research Organization:
Nuclear Science and Security Consortium (NSSC)
Sponsoring Organization:
USDOE National Nuclear Security Administration (NNSA); Ministry of Education, Culture, Sports, Science and Technology (MEXT) (Japan); Japan Society for the Promotion of Science (JSPS); European Union (EU); Russian Science Foundation (RSF); Russian Foundation for Basic research (RFBR); Ministry of Education and Science of the Russian Federation (MES)
Contributing Organization:
Hyper-Kamiokande Proto-Collaboration
Grant/Contract Number:
NA0000979; 25105004; ERC-207282; H2020 RISE-GA644294-JENNIFER; H2020 RISE-GA641540-SKPLUS
OSTI ID:
1454595
Alternate ID(s):
OSTI ID: 1454584
Journal Information:
Progress of Theoretical and Experimental Physics, Vol. 2015, Issue 5; ISSN 2050-3911
Publisher:
Physical Society of JapanCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 200 works
Citation information provided by
Web of Science

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Search for neutral-current induced single photon production at the ND280 near detector in T2K journal June 2019
Neutral current neutrino-nucleus scattering: theory journal January 2020
Non standard neutrino interactions: current status and future prospects journal September 2015
The Hyper-Kamiokande Experiment journal September 2017
Measurement of the cross sections for inclusive electron scattering in the E12-14-012 experiment at Jefferson Lab journal November 2019
Constraints in modeling the quasielastic response in inclusive lepton-nucleus scattering journal January 2020
Mean-field and two-body nuclear effects in inclusive electron scattering on argon, carbon, and titanium: The superscaling approach journal April 2019
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Nonstandard interactions and resolving the ordering of neutrino masses at DUNE and other long baseline experiments journal September 2016
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Water purification in low background experiments journal October 2017
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Neutrino Oscillations and Non-standard Interactions journal February 2018
Lepton Number Violation: Seesaw Models and Their Collider Tests journal May 2018
Neutrino Mass Ordering from Oscillations and Beyond: 2018 Status and Future Prospects journal October 2018
Strong Bayesian evidence for the normal neutrino hierarchy journal June 2017
Nonstandard interactions spoiling the C P violation sensitivity at DUNE and other long baseline experiments journal July 2016
First measurement of the muon neutrino charged current single pion production cross section on water with the T2K near detector text January 2017
Characterization of nuclear effects in muon-neutrino scattering on hydrocarbon with a measurement of final-state kinematics and correlations in charged-current pionless interactions at T2K text January 2018
Combined sensitivity to the neutrino mass ordering with JUNO, the IceCube Upgrade, and PINGU text January 2020
Search for neutral-current induced single photon production at the ND280 near detector in T2K text January 2019
Search for neutral-current induced single photon production at the ND280 near detector in T2K text January 2019
Combined sensitivity to the neutrino mass ordering with JUNO, the IceCube Upgrade, and PINGU text January 2020
Conditions for Statistical Determination of the Neutrino Mass Spectrum in Radiative Emission of Neutrino Pairs in Atoms text January 2015
Measurement of nuclear effects in neutrino interactions with minimal dependence on neutrino energy text January 2015
Non-standard interactions spoiling the CP violation sensitivity at DUNE and other long baseline experiments text January 2016
Neutrino oscillations and Non-Standard Interactions preprint January 2017
Characterisation of nuclear effects in muon-neutrino scattering on hydrocarbon with a measurement of final-state kinematics and correlations in charged-current pionless interactions at T2K text January 2018
Rotations Versus Perturbative Expansions for Calculating Neutrino Oscillation Probabilities in Matter text January 2018
Exploring NSI degeneracies in long-baseline experiments text January 2018
Search for neutral-current induced single photon production at the ND280 near detector in T2K text January 2019
Mean field and two-body nuclear effects in inclusive electron scattering on argon, carbon and titanium: the superscaling approach text January 2019
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Constraining Sterile Neutrino Cosmology with Terrestrial Oscillation Experiments text January 2019
Neutral Current Neutrino-Nucleus Scattering. Theory text January 2019
Constraints in modeling the quasielastic response in inclusive lepton-nucleus scattering text January 2019
A framework for testing leptonic unitarity by neutrino oscillation experiments journal February 2017
Improving the hierarchy sensitivity of ICAL using neural network journal September 2017
The Opportunity Offered by the ESSnuSB Project to Exploit the Larger Leptonic CP Violation Signal at the Second Oscillation Maximum and the Requirements of This Project on the ESS Accelerator Complex journal January 2016
Testable Baryogenesis in Seesaw Models text January 2016
An Effective Two-Flavor Approximation for Neutrino Survival Probabilities in Matter text January 2017
Addressing Neutrino Mixing Models with DUNE and T2HK text January 2017
Standard versus Non-Standard CP Phases in Neutrino Oscillation in Matter with Non-Unitarity text January 2018
Perturbing neutrino oscillations around the solar resonance text January 2019
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Summary of Workshop on Common Neutrino Event Generator Tools preprint January 2020
Leptonic CP Violation and its Origin preprint January 2020

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