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Davidson, S; Kuno, Y; Uesaka, Y; Yamanaka, M
Physical review. D, 12/2020, Letnik: 102, Številka: 11Journal Article
Contact interactions of a muon, an electron and two photons can contribute to the decay μ → eγγ, but also to the conversion of a muon into an electron in the electric field of a nucleus. We calculate the μ → e conversion rate, and show that for the coefficients of operators involving the combination FF ∝ |→E|2 (as opposed to F˜F ∝ →E⋅ →B), the current bound on μ → e conversion is more sensitive than the bound on μ → eγγ.
