%0 Journal Article
%T Neutrino oscillation physics potential of the T2K experiment
%A T2K Collaboration (Abe, K. et al
%A Cervera-Villanueva, A.
%A Escudero, L.
%A Izmaylov, A.
%A Sorel, M.
%A Stamoulis, P.
%J Progress of Theoretical and Experimental Physics
%D 2015
%N 4
%I Oxford Univ Press Inc
%@ 2050-3911
%G English
%F T2KCollaborationAbe_etal2015
%O WOS:000355312800005
%O exported from refbase (https://references.ific.uv.es/refbase/show.php?record=2262), last updated on Fri, 26 Jun 2015 10:28:23 +0000
%X 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.
%R 10.1093/ptep/ptv031
%U http://arxiv.org/abs/1409.7469
%U https://doi.org/10.1093/ptep/ptv031
%P 043C01-36pp