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Please use this identifier to cite or link to this item: https://hdl.handle.net/2445/175180
Search for a Dark Leptophilic Scalar in e(+) e(-) Collisions
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Many scenarios of physics beyond the standard model predict the existence of new gauge singlets, which might be substantially lighter than the weak scale. The experimental constraints on additional scalars with masses in the MeV to GeV range could be significantly weakened if they interact predominantly with leptons rather than quarks. At an e+e− collider, such a leptophilic scalar (ϕL) would be produced predominantly through radiation from a τ lepton. We report herein a search for e+e−→τ+τ−ϕL, ϕL→ℓ+ℓ− (ℓ=e, μ) using data collected by the BABAR experiment at SLAC. No significant signal is observed, and we set limits on the ϕL coupling to leptons in the range 0.04
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GRAUGÉS POUS, Eugeni and BABAR Collaboration. Search for a Dark Leptophilic Scalar in e(+) e(-) Collisions. Physical Review Letters. 2020. Vol. 125, num. 18, pags. 181801. ISSN 0031-9007. [consulted: 7 of October of 2026]. Available at: https://hdl.handle.net/2445/175180