Communications in Physics 28, 337-349 (2018)

ISSN: 0868-3166

COMBINED SENSITIVITY OF T2K-II AND NOnA EXPERIMENTS TO CP VIOLATION IN LEPTON SECTOR

TRAN VAN NGOC, CAO VAN SON, AND NGUYEN THI HONG VAN

In this paper, we study the combined sensitivity of T2K-II and NOvA, the world leading long-baseline neutrino oscillation experiments, to CP violation in lepton sector. By operating until the year 2026, T2K-II is expected to collect a total exposure of 20 X 10^21 protons-on-target. Meanwhile, NOnA experiment has a plan to extend its run up to 2024 for accumulating totally an amount of 72 X 10^20 protons-on-target. By combining analyses of T2K-II and NOnA with an ultimate constraint on q13 from reactor, the sensitivity to CP violation is expected to exceed 4s C.L. It is also pointed out that by reducing the systematic uncertainties of both T2K-II and NOnA to a level of 2%, the sensitivity to CP violation will significantly increase with a discovery possibility at 5s C.L. significance for a particular range of true dCP. Keywords: CP violation, neutrinos, T2K experiment, NOvA experiment. Classification numbers: 14.60.Pq, 14.60.Pq, 25.30.Pt.

DOI: DOI:10.15625/0868-3166/28/4/12930

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