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Model independent constraints on four-lepton operators

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arxiv 1511.07434 v2 pith:7Q23KXS5 submitted 2015-11-23 hep-ph

Adam Falkowski , Kin Mimouni This is my paper · ORCID
classification hep-ph
keywords operatorsfour-leptonbosonconstraintsdecaysdimension-6modelscattering
verification ladder T0 review T1 audit T2 compute T3 formal

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We obtain constraints on four-lepton interactions in the effective field theory with dimension-6 operators. To this end, we combine the experimental input from Z boson measurements in LEP-1, W boson mass and decays, muon and tau decays, lepton pair production in LEP-2, neutrino scattering on electrons, and parity violating electron scattering. The analysis does not rely on any assumptions about the flavor structure of the dimension-6 operators. Our main results are the confidence intervals for Wilson coefficients of 16 lepton-flavor conserving four-lepton operators, together with the full correlation matrix. Consequences for leptophilic models beyond the Standard Model are discussed.

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Cited by 5 Pith papers

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