Results

Measurement of the νμ charged current quasi-elastic cross-section on carbon with the T2K on-axis neutrino beam

March 27, 2015

This data release pertains to this paper. The tar file for this data release includes a README document in PDF format and 3 ROOT files.

The ROOT files contain the neutrino flux information, the selection efficiency and nominal distribution information, and the systematic error covariance of the cross section results.
Measurement of the νμ charged current quasi-elastic cross-section on carbon with the T2K on-axis neutrino beam

Search for short baseline νe disappearance with the T2K near detector

November 11, 2014

This data release pertains to this paper. The tar file for this data release includes a README document in PDF format and a file .dat with the best-fit χ2 in the global minimum and the Δχ2 for each point of the grid Δm2eff versus sin2ee with the respect to the global minimum.
Search for short baseline νe disappearance with the T2K near detector

Measurement of the Inclusive Electron Neutrino Charged Current Cross Section on Carbon with the T2K Near Detector

July 30, 2014

This data release pertains to this paper. The tar file for this data release includes a README document in PDF format, a ROOT file, and 7 CSV text files of the results.

The ROOT file contains the electron neutrino flux as a function of neutrino energy, and cross-section results as a function of electron momentum, electron scattering angle and Q-squared for both the full phase-space and reduced phase-space (momentum > 550 MeV and cos(θ) > 0.72) analyses. Each cross-section result contains the differential cross-section with total uncertainty in each bin, the total uncertainty covariance matrix, the statistical uncertainty covariance matrix and the flux uncertainty covariance matrix. The CSV files contain the same information as the ROOT file, but in text format.
Measurement of the Inclusive Electron Neutrino Charged Current Cross Section on Carbon

νμ disappearance measurement results 2014

March 26, 2014

This data release pertains to this paper.
The tar file for this data release includes a README document in PDF format, a ROOT file, and a plain text table of the analysis results. The ROOT file contains the best-fit points for sin223) vs. Δm2, the 2D log likelihood surface, 68% and 90% 2D Feldman-Cousins contours, and 1D profiled likelihood in. All results sin223) vs. Δm2 are given for both normal and inverted hierarchy. The text file contains the same information in plain text format.
T2K νμ disappearance results 2014

νμ disappearance measurement results 2013

September 4, 2013

The files in the following archive file contain the results of the νμ disappearance measurement reported in this paper.

This tar file contains a ROOT file with the best fit, 68% and 90% confidence regions of the νμ disappearance fit, and the Δχ2 surface. The tar file also contains TXT files with the Δχ2 surfaces. A README.pdf is also provided with detailed information about the contents of the included files:
T2K νμ disappearance results 2013

νe appearance measurement results 2012

April 10, 2013

The files in the following archive file contain the results of the νe appearance measurement reported in this paper.

This tar file contains ROOT files with the best fit, 68% and 90% confidence interval curves of the νe appearance fit and the negative log likelihood distribution. A README.pdf file is also provided with detailed information about the contents of the included files:
T2K νe appearance results 2012

νμ inclusive charged current cross section on carbon in the near detector

March 27, 2013

The files in the following archive file contain relevant data of the measurement of the inclusive NuMu charged current cross section on carbon in the near detector reported in this paper.

This tar file contains the flux information, input for the unfolding, and the final results as well as a README.pdf file with detailed information on the included files:
Measurement of the inclusive NuMu charged current cross section on carbon in the near detector

Neutrino beam flux prediction 2013

March 15, 2013

The files in the following archive file contain the neutrino beam flux predictions for the T2K ND280 (near) and Super-Kamiokande (far) detectors.
The description of the flux predictions is published in this paper. The provided flux predictions include no neutrino oscillations.

This tar file contains the flux predictions as well as a README.pdf file with detailed information on the included files:
T2K flux prediction 2013

νe appearance (July 2012)

December 17, 2012

sin2(2θ13) = 0.094+0.053-0.040 (0.116+0.063-0.049) for δCP = 0, Δm223 = 2.4×10-3 eV2, θ23 = π/4 and normal (inverted) hierarchy.

Data set: 3.01×1020 p.o.t.

ICHEP 2012 presentation

sin2(2θ13)-δCP contour data [ROOT file],   (Readme)

νμ disappearance (July 2011)

December 17, 2012

2.1×10-3 < Δm223(eV2) < 3.1×10-3 and sin223 > 0.85 at 90% C.L.

Data set: 1.43×1020 p.o.t.

PRD85,031103(2012)

arXiv:1201.1386