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arXiv · hep-ex/0207024

Search for Nucleon Decays induced by GUT Magnetic Monopoles with the MACRO Experiment

The MACRO Collaboration
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Abstract

The interaction of a Grand Unification Magnetic Monopole with a nucleon can lead to a barion-number violating process in which the nucleon decays into a lepton and one or more mesons (catalysis of nucleon decay). In this paper we report an experimental study of the effects of a catalysis process in the MACRO detector. Using a dedicated analysis we obtain new magnetic monopole (MM) flux upper limits at the level of $\sim 3\cdot 10^{-16} cm^{-2} s^{-1} sr^{-1}$ for $1.1\cdot 10^{-4} \le |β| \le 5\cdot 10^{-3}$, based on the search for catalysis events in the MACRO data. We also analyze the dependence of the MM flux limit on the catalysis cross section.

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The MACRO Collaboration. 2002-07-05. Search for Nucleon Decays induced by GUT Magnetic Monopoles with the MACRO Experiment. https://doi.org/10.1140/epjc%2Fs2002-01045-x

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