XMASS EXPERIMENT

摘要

The XMASS experiment aims to detect pp and 7Be solar neutrinos, and neu-trinoless double beta decay using ultra pure liquid xenon. It requires low back-ground and a low threshold which will also enable us to search for dark matterin the galactic halo. The first stage of XMASS project is concentrated on dark matter searchesutilizes 800 kg liquid xenon detector. The detector design and expected sensi-tivity for dark matter based on Monte Carlo simulations will be presented.