LUNAR is a new open Monte Carlo generator for bound nucleon decays in argon-40 that models Fermi motion, off-shell binding, and intranuclear cascades to predict meson spectra for DUNE nucleon-decay searches.
A Search for Nucleon Decay via $n \rightarrow \bar{\nu} \pi^{0}$ and $p \rightarrow \bar{\nu} \pi^{+}$ in Super-Kamiokande
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abstract
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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LUNAR: a Monte Carlo generator for bound-nucleon decay in liquid argon
LUNAR is a new open Monte Carlo generator for bound nucleon decays in argon-40 that models Fermi motion, off-shell binding, and intranuclear cascades to predict meson spectra for DUNE nucleon-decay searches.