English Neutrino Cited by user Solypewo on 19 Apr 2019 A neutrino (denoted by the Greek letter ν) is a fermion (an elementary particle with half-integer spin) that interacts only via the weak subatomic force and gravity.
English Enriched Xenon Observatory Cited by user Timetraveler3.14 on 20 Jan 2015 The Enriched Xenon Observatory (EXO) is a particle physics experiment searching for neutrinoless double beta decay of xenon-136 at WIPP near Carlsbad, NM.