KASKA experiment: A reactor sin22θ13 project

KASKA is a reactor neutrino experiment to measure θ 13 accurately. The sensitivity reach of sin 2 2 θ 13 will be 0.015 in its first phase. Higher accuracy θ 13 measurement, precise θ 12 measurement and first Δ m 13 2 measurement are also in consideration in future extensions of the experiment. A brief description of the KASKA project and its R&D activities are presented.