XMASS EXPERIMENT I

摘要

The XMASS project utilizes ultrapure liquid xenon and aims to detect pp and ~7Be solar neutrinos by means of v + e scatterings. Our goal is a 10t scale detector, in which an ultralow background can be realized in a fiducial volume. We developed simulations and reconstruction tools and confirmed the effect of self shieldings. We also discuss the sensitivities for double beta decay and dark matter detection. We are now designing a 100kg detector based on experiences with an existing 3kg protype detector.