The enriched xenon observatory (EXO) program uses a time projection chamber filled with liquid xenon enriched in 136Xe isotope to search for neutrinoless double beta decay (0vbb). EXO-200 is a current running experiment using ~175 kg liquid xenon and provided one of the most sensitive search for 0vbb. nEXO is a planned next generation experiment which will use 5 tonne enriched liquid xenon. The sensitivity to 0vbb half-life will be improved by two orders of magnitude compared to current generation experiments and entirely cover the inverted hierarchy region. I will cover the latest status of EXO-200 and nEXO in my talk.
Dr. Gaosong Li from Stanford University, USA