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arXiv · hep-ex/9803030

Search for the Proton Decay Mode proton to neutrino K+ in Soudan 2

The Soudan 2 collaboration
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Abstract

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 10^{31} years at 90% CL with no background subtraction.

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The Soudan 2 collaboration. 1998-03-30. Search for the Proton Decay Mode proton to neutrino K+ in Soudan 2. https://doi.org/10.1016/s0370-2693(98)00380-3

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