Proposal for an Extended Run of T2K to $20\times 10^{21}$ POT

Abstract

Recent measurements by the T2K neutrino oscillation experiment indicate that CP violation in neutrino mixing may be observed in the future by long-baseline neutrino oscillation experiments. We propose an extension to the currently approved T2K running from $7.8\times 10^{21}~\mbox{POT}$ to $20\times 10^{21}~\mbox{POT}$, aiming at initial observation of CP violation with 3$\sigma$ or higher significance for the case of maximum CP violation. The program also contains a measurement of mixing parameters, ${\theta }_{23}$ and $\Delta m_{32}^2$, with a precision of 1.7${}^{\circ }$ or better and 1%, respectively. With accelerator and beamline upgrades, as well as analysis improvements, this program would occur before the next generation of long-baseline neutrino oscillation experiments that are expected to start operation in 2026.

68 pages, 31 figures

Cited by in corpus (5)

• Exploring SMEFT Induced Non-Standard Interactions from COHERENT to Neutrino Oscillations
• Precise Capture Rates of Cosmic Neutrinos and Their Implications on Cosmology
• Hyper-Kamiokande
• Perspectives and Outlook from HEP Window on the Universe
• Theoretical and phenomenological consequences of active and sterile neutrino within Beyond Standard Model framework