Rank #81
The EXO-200 Neutrinoless Double Beta Decay Experiment
The EXO-200 Neutrinoless Double Beta Decay Experiment is a groundbreaking research project that seeks to answer one of the most fundamental questions in physics: do neutrinos have mass? By studying the decay of a certain type of radioactive atom, the EXO-200 experiment hopes
From Wikipedia
Neutrinoless double beta decay (0νββ) is a commonly proposed and experimentally pursued theoretical radioactive decay process that would prove a Majorana nature of the neutrino particle. To this day, it has not been found.