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Limit on the electric charge-nonconserving decay
Phys. Rev. D 76, 055004 – Published 13 September, 2007
DOI: https://doi.org/10.1103/PhysRevD.76.055004
Abstract
The first limit on the branching ratio of the electric charge-nonconserving invisible muon decay is obtained from the recently reported results on new determination of the Fermi constant from muon decays. The results of a feasibility study of a new proposed experiment for a sensitive search for this decay mode at the level of a few parts in are presented. Constrains on the decay rate are discussed. These leptonic charge-nonconserving processes may hold in four-dimensional world in models with infinite extra dimensions, thus making their searches complementary to collider experiments probing new physics.
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