Results from solar, atmospheric and K2K experiments and

future possibilities with T2K

TAKAAKI KAJITA

Research Center for Cosmic Neutrinos, Institute for Cosmic Ray Research,

University of Tokyo, Kashiwa-no-ha 5-1-5, Kashiwa, Chiba 277-8582, Japan

E-mail: kajita@icrr.u-tokyo.ac.jp

Abstract. Recent results from solar, reactor, atmospheric and

long baseline (K2K) experiments are discussed. With the improved

data statistics and analyses,

our knowledge on the neutrino masses and mixing angles are

steadily improving. T2K is the next generation neutrino

oscillation experiment between J-PARC in Tokai and

Super-Kamiokande. This experiment will start in 2009.

This experiment is expected to improve the current knowledge

on the neutrino masses and mixings substantially.

Keywords. Neutrino; neutrino oscillation.

PACS No. 14.60.Pq