Search for nucleon decays induced by GUT magnetic monopoles with the MACRO experimentM. Ambrosio et al.
(Received: 2 August 2002 / Published online: 25 October 2002 )
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 for , 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.
© Società Italiana di Fisica, Springer-Verlag 2002