https://www.selleckchem.com/pr....oducts/Tigecycline.h
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 (ϕ_L) would be produced predominantly through radiation from a τ lepton. We report herein a search for e^+e^-→τ^+τ^-ϕ_L, ϕ_L→ℓ^+ℓ^- (ℓ=e, μ) using data
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