TY  - JOUR
AU  - T2K Collaboration (Abe, K. et al
AU  - Cervera-Villanueva, A.
AU  - Escudero, L.
AU  - Izmaylov, A.
AU  - Sorel, M.
AU  - Stamoulis, P.
PY  - 2015
DA  - 2015//
TI  - Neutrino oscillation physics potential of the T2K experiment
T2  - Prog. Theor. Exp. Phys.
JO  - Progress of Theoretical and Experimental Physics
SP  - 043C01
EP  - 36pp
IS  - 4
PB  - Oxford Univ Press Inc
AB  - The observation of the recent electron neutrino appearance in a muon neutrino beam and the high-precision measurement of the mixing angle theta(13) 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 sin(2) 2 theta(23), the octant of theta(23), and the mass hierarchy, in addition to the measurements of delta CP, sin(2) theta(23), and Delta m(32)(2), for various combinations of nu-mode and (nu) over bar -mode data-taking. With an exposure of 7.8 x 10(21) protons-on-target, T2K can achieve 1 sigma resolution of 0.050 (0.054) on sin(2) theta(23) and 0.040 (0.045) x 10(-3) eV(2) on Delta m(32)(2) for 100% (50%) neutrino beam mode running assuming sin(2) theta(23) = 0.5 and Delta m(32)(2) = 2.4 x 10(-3) eV(2). T2K will have sensitivity to the CP-violating phase delta(CP) at 90% C.L. or better over a significant range. For example, if sin(2) 2 theta(23) is maximal (i.e.theta(23) = 45 degrees) the range is -115 degrees < delta(CP) < -60 degrees for normal hierarchy and +50 degrees < delta(CP) < + 130 degrees for inverted hierarchy. When T2K data is combined with data from the NO nu A experiment, the region of oscillation parameter space where there is sensitivity to observe a non-zero delta CP is substantially increased compared to if each experiment is analyzed alone.
SN  - 2050-3911
UR  - http://arxiv.org/abs/1409.7469
UR  - https://doi.org/10.1093/ptep/ptv031
DO  - 10.1093/ptep/ptv031
LA  - English
N1  - WOS:000355312800005
ID  - T2KCollaborationAbe_etal2015
ER  -