Sensitivity and discovery potential of the proposed nEXO experiment:
nEXO is a future 0nbb decay experiment searching for this weak process in the decay of 136Xe. nEXO is building on the experience gained and the success of the EXO-200. As reported in Physical Review C (2018), the sensitivity of nEXO, which is anticipated to deploy 5x103 kg of liquid xenon enriched in the isotope 136Xe to 90%, has been investigated under demonstrated and realizable background rates. The projected sensitivity of nEXO after 10 years of operation reaches 1028 years, which is an improvement of almost two orders of magnitude compared to current experiments.