# Proposal for an Extended Run of T2K to $20\times10^{21}$ POT

Abe, K. and Aihara, H. and Amji, A. and Amey, J. and Andreopoulos, C. and Antonova, M. and Aoki, S. and Ban, S. and Barbato, F. C. T. and Barbi, M. and Barbato, F. C. T. and Barker, G. J. and Barr, G. and Bartet-Friburg, P. and Batkiewicz, M. and Berardi, V. and Bhadra, S. and Bienstock, S. and Blondel, A. and Bolognesi, S. and Bordoni, S. and Brailsford, D. and Bravar, A. and Bronner, C. and Avanzini, M. Buizza and Calcutt, J. and Calland, R. G. and Calvet, D. and Campbell, T. and Cao, S. and Castillo, R. and Catanesi, M. G. and Cervera, A. and Checchia, C. and Cherdack, D. and Chikuma, N. and Christodoulou, G. and Coleman, J. and Dealtry, T. and Finch, A. J. and Grant, N. and Knox, A. and Kormos, L. L. and Lamont, I. and Lawe, M. and Nowak, J. and O'Keeffe, H. M. and Ratoff, P. N. and Shaw, D. and Southwell, L. (2016) Proposal for an Extended Run of T2K to $20\times10^{21}$ POT. arxiv.org.

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1609.04111v1 - Published Version

## 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 $\Delta m^2_{32}$, 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.

Item Type:
Journal Article
Journal or Publication Title:
arxiv.org
68 pages, 31 figures
Subjects:
Departments:
ID Code:
81585
Deposited By:
Deposited On:
19 Sep 2016 15:18
Refereed?:
Yes
Published?:
Published