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Deppisch, F. F., Desai, N., & Valle, J. W. F. (2014). Is charged lepton flavor violation a high energy phenomenon? Phys. Rev. D, 89(5), 051302–5pp.
Abstract: Searches for rare processes such as μ-> e gamma 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-> e gamma rates.
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