Physics potential of a long-baseline neutrino oscillation experiment using a J-PARC neutrino beam and Hyper-Kamiokande
By K. Abe, H. Aihara, C. Andreopoulos, I. Anghel, A. Ariga, T. Ariga, R. Asfandiyarov, M. Askins, J. Back, P. Ballett and 237 more. 2015
157 citations recorded by the source corpus.
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 $\times$ 10$^7$ sec integrated proton beam power (corresponding to $1.56\times10^{22}$ 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 $\delta_{CP}$ can be determined to better than 19 degrees for all possible values of $\delta_{CP}$, and $CP$ violation can be established with a statistical significance of more than $3\,\sigma$ ($5\,\sigma$) for $76\%$ ($58\%$) of the $\delta_{CP}$ parameter space. Using both $\nu_e$ appearance and $\nu_\mu$ disappearance data, the expected 1$\sigma$ uncertainty of $\sin^2\theta_{23}$ is 0.015(0.006) for $\sin^2\theta_{23}=0.5(0.45)$.
Subfields: Nuclear and High Energy Physics
View Paper: https://www.semanticscholar.org/paper/70749dfaab6892384ed9e53666753db49444e5b6
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In Nuclear and High Energy Physics
Citations in the corpus
- Neutrino Mass Ordering from Oscillations and Beyond: 2018 Status and Future Prospects (2018, background): “Upcoming neutrino detectors, already described in section 6.1 and crucial for oscillation physics measurements, such as the JUNO liquid scintillator (An et al., 2016), the liquid argon DUNE (Acciarri et al., 2015, 2016a,b; Strait et al., 2016) and the water Cherenkov Hyper-Kamiokande (Abe et al., 20”
- Neutrino Oscillations and Non-standard Interactions (2017, background): “V. NSI AT UPCOMING LONG BASELINE EXPERIMENTS: T2HK, T2HKK, DUNE, JUNO AND MOMENT In recent years, rich literature has been developed on the possibility of detecting the NSI effects in upcoming long baseline neutrino experiments.”
- Lepton Number Violation: Seesaw Models and Their Collider Tests (2017, methodology): “Hyper-Kamiokande (Hyper-K) experiment as an update of T2K can measure the precision of δ to be 7◦ − 21◦ and reach 3 (5)σ significance of mass hierarchy determination for 5 (10) years exposure [85].”
- Current unknowns in the three-neutrino framework (2018, background): “On a longer time frame, discovery-level tests of the mass spectrum ordering will be provided by next-generation projects [41], not only with large-volume atmospheric neutrinos [186, 187, 188, 189] but also with medium-baseline reactors such as JUNO [190] and new long-baseline accelerator facilities ”
- Detecting and studying high-energy collider neutrinos with FASER at the LHC (2019, unknown): “[51] Hyper-Kamiokande Proto-Collaboration Collaboration, K.”