The Latest Oscillation Results from T2K

Litchfield, P. (2019) The Latest Oscillation Results from T2K. In: The 39th International Conference on High Energy Physics (ICHEP2018), Seoul, Korea, 04-11 Jul 2018, p. 522. (doi: 10.22323/1.340.0522)

Abstract

The T2K long-baseline neutrino oscillation experiment has been running since January 2010, and has roughly doubled the data set in both neutrino and anti-neutrino beam mode since the most recent published results. We present a joint analysis of neutrino and anti-neutrino data, using both disappearance and appearance channels. This analysis uses a new event reconstruction algorithm, an enlarged fiducial volume, and a new sample of electron-like events with tagged pion decays. The cross-section models used to analyse the data have also been updated to better treat multi-nucleon effects. We present newly-updated measurements of θ23 , Δm223, θ13 and δCP, using an exposure of 1.49(1.12)×1021 POT in Forward(Reverse) Horn Current mode. By requiring that the value of θ13 should be consistent with reactor neutrino measurements, CP-conserving hypotheses (δCP={0,π}) are excluded at over 2σ.

• Item Type: Conference Proceedings
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: Litchfield, Dr Phillip
• Authors: Litchfield, P.
• College/School: College of Science and Engineering > School of Physics and Astronomy
• ISSN: 1824-8039
• Copyright Holders: Copyright © 2019 The Author
• First Published: First published in Proceedings of Science 340: 522
• Publisher Policy: Reproduced under a Creative Commons License