TY  - JOUR
AU  - T2K Collaboration (Abe, K. et al
AU  - Antonova, M.
AU  - Cervera-Villanueva, A.
AU  - Fernandez, P.
AU  - Izmaylov, A.
AU  - Novella, P.
PY  - 2018
DA  - 2018//
TI  - Search for CP Violation in Neutrino and Antineutrino Oscillations by the T2K Experiment with 2.2 x 10(21) Protons on Target
T2  - Phys. Rev. Lett.
JO  - Physical Review Letters
SP  - 171802
EP  - 9pp
VL  - 121
IS  - 17
PB  - Amer Physical Soc
AB  - The T2K experiment measures muon neutrino disappearance and electron neutrino appearance in accelerator-produced neutrino and antineutrino beams. With an exposure of 14.7(7.6) x 10(20) protons on target in the neutrino (antineutrino) mode, 89 nu(e) candidates and seven anti-nu(e) candidates are observed, while 67.5 and 9.0 are expected for delta(CP) = 0 and normal mass ordering. The obtained 2 sigma confidence interval for the CP-violating phase, delta(CP), does not include the CP-conserving cases (delta(CP) = 0, pi). The best-fit values of other parameters are sin(2) theta(23) = 0.526(-0.036)(+0.032) and Delta m(32)(2) = 2.463(-0.070)(+0.071) x 10(-3) eV(2)/c(4).
SN  - 0031-9007
UR  - http://arxiv.org/abs/1807.07891
UR  - https://doi.org/10.1103/PhysRevLett.121.171802
DO  - 10.1103/PhysRevLett.121.171802
LA  - English
N1  - WOS:000448172000004
ID  - T2KCollaborationAbe_etal2018
ER  -