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Electron Beam Dump Constraints on Light Bosons with Lepton Flavor Violating Couplings

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arxiv 2107.07487 v1 pith:NEGB2M2J submitted 2021-07-15 hep-ph

Electron Beam Dump Constraints on Light Bosons with Lepton Flavor Violating Couplings

classification hep-ph
keywords bosonsflavorbeamdecaysdumpelectronlightviolating
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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We study constraints on light and feebly interacting bosons with lepton flavor violation from electron beam dump experiments. Scalar, vector, and dipole interactions of the bosons are analyzed, respectively, and excluded regions from the searches for decays into electron-positron pairs are derived. It is found that parameter regions unconstrained by flavor violating decays of muon can be excluded using the results of the E137 experiment. We also discuss the impact of the search for flavor violating decays of the light bosons in electron beam dump experiments.

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Cited by 1 Pith paper

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    DREAMuS proposes a muon-beam fixed-target setup at HIAF to probe GeV-scale muon-philic dark matter with sensitivity to couplings around 10^{-4} using background-suppressed signatures from a light flavor-violating mediator.