Lepton flavor violation with displaced vertices

If light new physics with lepton-flavor-violating couplings exists, the prime discovery channel might not be ℓ→ℓ′γ but rather ℓ→ℓ′X, where the new boson X could be an axion, majoron, familon or Z′ gauge boson. The most conservative bound then comes from ℓ→ℓ′+inv, but if the on-shell X can decay back...

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Bibliographic Details
Main Authors: Julian Heeck, Werner Rodejohann
Format: Article
Language:English
Published: Elsevier 2018-01-01
Series:Physics Letters B
Online Access:http://www.sciencedirect.com/science/article/pii/S0370269317309590