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Lepton Number Violating Radiative $W$ Decay in Models with R-parity Violation

T. G. Rizzo
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Abstract

Models with explicit R-parity violation can induce new rare radiative decay modes of the $W$ boson into single supersymmetric particles which also violate lepton number. We examine the rate and signature for one such decay, $W\rightarrow \tilde lγ$, and find that such a mode will be very difficult to observe, due its small branching fraction, even if the lepton number violating coupling in the superpotential is comparable in strength to electromagnetism. This parallels a similar result obtained earlier by Hewett in the case of radiative $Z$ decays.

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T. G. Rizzo. 1992-11-10. Lepton Number Violating Radiative $W$ Decay in Models with R-parity Violation. https://doi.org/10.1103/physrevd.47.4991

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