English

Results from T2K

High Energy Physics - Experiment 2015-01-20 v1

Abstract

The Tokai to Kamioka (T2K) experiment uses a beam of muon neutrinos, produced at the J-PARC facility on the east coast of Japan, to study neutrino oscillations driven by the Δmatm2\Delta m_{\textrm{atm}}^{2} mass splitting. A suite of near detectors located 280~m from the secondary beam source samples the unoscillated beam, and the Super-Kamiokande water Cherenkov detector samples the beam at a baseline of 295~km, and at a point 2.52.5^\circ off the beam axis, giving a narrow-band beam centred around 600~MeV. Analyses of the oscillation channels νμνe\nu_\mu \to \nu_e and νμνμ\nu_\mu \to \nu_\mu allow measurements to be made of θ13\theta_{13}, θ23\theta_{23} and Δmatm2\Delta m^2_{\textrm{atm}}, and, ultimately, for weak constraints to be placed on the CP-violating phase δCP\delta_{CP}. In addition to these analyses, T2K has made world-leading neutrino cross-section measurements in the sub-GeV energy range, utilising both the near and far detectors. The present work will discuss both the most recent measurements of the oscillation parameters, and these cross section analyses.

Keywords

Cite

@article{arxiv.1501.04283,
  title  = {Results from T2K},
  author = {Martin David Haigh},
  journal= {arXiv preprint arXiv:1501.04283},
  year   = {2015}
}

Comments

10 pages, 7 figures. To appear in the proceedings of the Interplay between Particle and Astroparticle Physics (IPA 2014), 18-22 August 2014 Queen Mary University of London

R2 v1 2026-06-22T08:04:51.718Z