Neutrino oscillation physics potential of the T2K experiment
| dc.contributor.author | Abe, K. | |
| dc.contributor.author | Adam, J. | |
| dc.contributor.author | Aihara, H. | |
| dc.contributor.author | Akiri, T. | |
| dc.contributor.author | Andreopoulos, C. | |
| dc.contributor.author | Aoki, S. | |
| dc.contributor.author | Ariga, A. | |
| dc.contributor.author | Assylbekov, S. | |
| dc.contributor.author | Autiero, D. | |
| dc.contributor.author | Barbi, M. | |
| dc.contributor.author | Barker, G.J. | |
| dc.contributor.author | Barr, G. | |
| dc.contributor.author | Bartet-Friburg, P. | |
| dc.contributor.author | Bass, M. | |
| dc.contributor.author | Batkiewicz, M. | |
| dc.contributor.author | Bay, F. | |
| dc.contributor.author | Berardi, V. | |
| dc.contributor.author | Karlen, Dean | |
| dc.contributor.author | et al. | |
| dc.date.accessioned | 2021-05-18T20:17:23Z | |
| dc.date.available | 2021-05-18T20:17:23Z | |
| dc.date.copyright | 2015 | en_US |
| dc.date.issued | 2015 | |
| dc.description.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 sin22θ23, the octant of θ23, and the mass hierarchy, in addition to the measurements of δCP, sin2θ23, and Δm232, for various combinations of ν-mode and ν¯-mode data-taking. With an exposure of 7.8×1021 protons-on-target, T2K can achieve 1σ resolution of 0.050 (0.054) on sin2θ23 and 0.040 (0.045)×10−3eV2 on Δm232 for 100% (50%) neutrino beam mode running assuming sin2θ23=0.5 and Δm232=2.4×10−3eV2. T2K will have sensitivity to the CP-violating phase δCP at 90% C.L. or better over a significant range. For example, if sin22θ23 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. | en_US |
| dc.description.reviewstatus | Reviewed | en_US |
| dc.description.scholarlevel | Faculty | en_US |
| dc.description.sponsorship | We thank the J-PARC staff for superb accelerator performance and the CERN NA61 collaboration for providing valuable particle production data. We acknowledge the support of MEXT, Japan; NSERC, NRC, and CFI, Canada; CEA and CNRS/IN2P3, France; DFG, Germany; INFN, Italy; National Science Centre (NCN), Poland; RAS, RFBR, and MES, Russia; MICINN and CPAN, Spain; SNSF and SER, Switzerland; STFC, UK; and DOE, USA. We also thank CERN for the UA1/NOMAD magnet, DESY for the HERA-B magnet mover system, NII for SINET4, the WestGrid and SciNet consortia in Compute Canada, GridPP, UK. In addition, participation of individual researchers and institutions has been further supported by funds from: ERC (FP7), EU; JSPS, Japan; Royal Society, UK; DOE Early Career program, USA. | en_US |
| dc.identifier.citation | Abe, K., Adam, J., Aihara, H., Akiri, T., Andreopoulos, C., Karlen, D., … Żmuda, J. (2015). Neutrino oscillation physics potential of the T2K experiment. Progress of Theoretical and Experimental Physics, 2015(4), 1-36. https://doi.org/10.1093/ptep/ptv031. | en_US |
| dc.identifier.uri | https://doi.org/10.1093/ptep/ptv031 | |
| dc.identifier.uri | http://hdl.handle.net/1828/12975 | |
| dc.language.iso | en | en_US |
| dc.publisher | Progress of Theoretical and Experimental Physics | en_US |
| dc.subject.department | Department of Physics and Astronomy | |
| dc.title | Neutrino oscillation physics potential of the T2K experiment | en_US |
| dc.type | Article | en_US |