First results of K2K and the future long baseline experiment at JHF

by Takashi Kobayashi (KEK, Japan)

Friday 2 Mar 2001, 16:30 → 17:30 Europe/Zurich

500/1-001 - Main Auditorium (CERN)

The K2K experiment is the first accelerator-based long baseline neutrino experiment aiming at cross-checking the observations of oscillations of atmospheric neutrinos. A n_m beam of about 1GeV is produced at KEK and observed by Super-Kamiokande (SK) at a distance of 250km from KEK. From June 1999 to June 2000, we accumulated about 23% of the proposed total number of protons on target. I will report on the results obtained with these data. The JHF (its tentative name) is a high intensity proton accelerator complex which was approved last December and will be constructed at the Japan Atomic Energy Research Institute, 60km N.E of KEK, by 2006. We are planning a long baseline neutrino experiment from JHF to SK, with 295km distance. Using the 1 MW 50 GeV PS of this facility, we expect about 2 orders of magnitude higher neutrino flux than K2K. This high intensity beam will enable us to determine oscillation parameters in n_m disappearance and explore n_e appearance with unprecedented precision and reach. I will provide an overview of the proposed neutrino facility and its physics potential.

Organiser(s): Jasper Kirkby / EP Division

Note: Tea & coffee will be served at 16.00 hrs.