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Discussion explores how right-handed neutrinos could show lepton flavor violation at high energies, suggesting new physics.
Searches for rare processes such as μ→eγ put stringent limits on lepton flavor violation expected in many beyond-the-Standard-Model physics scenarios. This usually precludes the observation of flavor violation at high energy colliders such as the LHC. We here discuss a scenario where right-handed neutrinos are produced via a Z^' portal but which can only decay via small flavor violating couplings. Consequently, the process rate is unsuppressed by the small couplings and can be visible despite unobservably small μ→eγ rates.
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Deppisch et al. (2014) studied this question.
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