This is the data release to accompany the results of T2K’s neutrino oscillation analysis using neutrino and antineutrino data collected between 2010 and 2018, as reported in the T2K collaboration’s April 16th 2020 article in Nature.
The information shared is the value of minus two times the log of the marginal likelihood (described in the methods section of the Nature article) as a function of several of the neutrino oscillation parameters. This is referred to as the “χ2”. We also give δχ2 distributions, which are the difference in the χ2 value between the minimum χ2 and the χ2 at the other points in oscillation parameter space. Additionally, 68% and 90% confidence level contours are included in one of the two file formats detailed below. All distributions and contours have nth and ith versions which give the information for the normal and inverted neutrino mass orderings respectively.
Nature publication is available from: https://www.nature.com/articles/s41586-020-2177-0#citeas
T2K neutrino oscillation public data release.
