Rare leptonic processes induced by massless dark photon
نویسندگان
چکیده
We introduce a dark photon considering U(1) gauge extension of the standard model in particle physics. Provided that extra symmetry is unbroken, massless and has no coupling to electromagnetic current. Higher-dimensional operators describe interactions with particles model. investigate charged leptons via dipole operators, mainly focusing on lepton family-violating processes. present an improved constraint polarized two-body muon decay set new bounds tau decays. also examine possible signals future colliders.
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ژورنال
عنوان ژورنال: Physics Letters B
سال: 2023
ISSN: ['0370-2693', '1873-2445']
DOI: https://doi.org/10.1016/j.physletb.2023.138035