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arxiv: 1305.4391 · v1 · submitted 2013-05-19 · ✦ hep-ex

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A Search for Nucleon Decay via n rightarrow bar{ν} π⁰ and p rightarrow bar{ν} π⁺ in Super-Kamiokande

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classification ✦ hep-ex
keywords antineutrinolifetimepartialdecaynucleonpipluspizeroplus
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We present the results of searches for nucleon decay via bound neutron to antineutrino plus pizero and proton to antineutrino plus piplus using data from a combined 172.8 kiloton-years exposure of Super-Kamiokande-I, -II, and -III. We set lower limits on the partial lifetime for each of these modes. For antineutrino pizero, the partial lifetime is >1.1x10^{33} years; for antineutrino piplus, the partial lifetime is >3.9x10^{32} years at 90% confidence level.

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