Key points are not available for this paper at this time.
An improved lower limit of >2 10^30 yr against baryon-conservation-violating nucleon decay has been obtained for modes which produce decays. The detector, employing a 20-ton large-area (180 m^2) liquid scintillator, was operated deep underground (3. 2 km) to eliminate stopping muons from cosmic rays, leaving only the background from muons produced by atmospheric neutrinos. A run length of 2. 7 yr was required to achieve the sensitivity quoted.
Reines et al. (Mon,) studied this question.