proto-collaboration, H-K;
Abe, K;
Abe, K;
Ahn, SH;
Aihara, H;
Aimi, A;
Akutsu, R;
... Zsoldos, S; + view all
(2018)
Physics Potentials with the Second Hyper-Kamiokande Detector in Korea.
Progress of Theoretical and Experimental Physics
, 2018
(6)
, Article 063C01. 10.1093/ptep/pty044.
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Abstract
Hyper-Kamiokande consists of two identical water-Cherenkov detectors of total 520~kt with the first one in Japan at 295~km from the J-PARC neutrino beam with 2.5$^{\textrm{o}}$ Off-Axis Angles (OAAs), and the second one possibly in Korea in a later stage. Having the second detector in Korea would benefit almost all areas of neutrino oscillation physics mainly due to longer baselines. There are several candidate sites in Korea with baselines of 1,000$\sim$1,300~km and OAAs of 1$^{\textrm{o}}$$\sim$3$^{\textrm{o}}$. We conducted sensitivity studies on neutrino oscillation physics for a second detector, either in Japan (JD $\times$ 2) or Korea (JD + KD) and compared the results with a single detector in Japan. Leptonic CP violation sensitivity is improved especially when the CP is non-maximally violated. The larger matter effect at Korean candidate sites significantly enhances sensitivities to non-standard interactions of neutrinos and mass ordering determination. Current studies indicate the best sensitivity is obtained at Mt. Bisul (1,088~km baseline, $1.3^\circ$ OAA). Thanks to a larger (1,000~m) overburden than the first detector site, clear improvements to sensitivities for solar and supernova relic neutrino searches are expected.
| Type: | Article |
|---|---|
| Title: | Physics Potentials with the Second Hyper-Kamiokande Detector in Korea |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1093/ptep/pty044 |
| Publisher version: | http://dx.doi.org/10.1093/ptep/pty044 |
| Language: | English |
| Additional information: | © The Author(s) 2018. Published by Oxford University Press on behalf of the Physical Society of Japan. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted reuse, distribution, and reproduction in any medium, provided the original work is properly cited |
| Keywords: | hep-ex, hep-ex, hep-ph, physics.ins-det |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of the Built Environment UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of the Built Environment > Bartlett School Env, Energy and Resources |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10087753 |
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