1998/03/30 by The Soudan 2 collaboration, W.W.M. Allison, G.J. Alner +45 · 14 citations
Chemistry · Physics and Astronomy · #Analytical Chemistry (journal) #Astrophysics and Cosmic Phenomena #Background subtraction #Calorimeter (particle physics) #Chemistry #Chromatography #Detector #Neutrino #Neutrino Physics Research #Nuclear physics #Optics #Particle physics #Particle physics theoretical and experimental studies #Physics #Proton #Proton decay #hep-ex
paper · pdf · doi:10.1016/s0370-2693(98)00380-3
published in Physics Letters B 427(1-2), 217-224 (Elsevier BV) · 13 pages, Latex, 3 tables and 3 figures, Accepted by Physics Letters B
arxiv created 1998/03/30 · openalex publication_date 1998/05/01 · arxiv updated 2012/08/27 · openalex created_date 2017/02/24 · openalex updated_date 2026/08/05
We have searched for the proton decay mode proton to neutrino K+ using the one-kiloton Soudan 2 high resolution calorimeter. Contained events obtained from a 3.56 kiloton-year fiducial exposure through June 1997 are examined for occurrence of a visible K+ track which decays at rest into mu+ nu or pi+ pi0. We found one candidate event consistent with background, yielding a limit, tau/B > 4.3 1031 years at 90% CL with no background subtraction.