Study of neutrino interactions at the T2K near detector

[摘要] The Tokai to Kamioka experiment (T2K) is a long baseline neutrino accelerator operating in Japan and designed to measure electron neutrino appearance and muon neutrino disappearance. Three gaseous TPCs compose its near detector complex. The latest T2K analysis combines the results from the appearance and disappearance channels to extract simultaneously four neutrino oscillation parameters. Improvements to the TPC field distortion correction are under development to reduce systematic uncertainties for future oscillation analyses. In parallel a cross section measurement of neutrino-gas interactions happening in the T2K TPCs is in preparation in particular to extract unique proton multiplicity and kinematic information.

[发布机构] Dept. of Physics and Astronomy, University of Victoria, 3800 Finnerty Rd, Victoria; BC; V8P 5C2, Canada^1

[关键词] Cross-section measurement;Electron neutrino;Field distortions;Kinematic information;Neutrino interactions;Neutrino oscillations;Oscillation analysis;Systematic uncertainties