Muons are powerful probes of fundamental physics at the precision and intensity frontiers. We review the status and planned upgrades of muon-beam facilities worldwide, together with the experimental apparatus required across three experimental categories. Charged-lepton flavor violation (CLFV) searches test charged-lep...
Yi Yuan, Le-Yun Gao, Jian Tang et al.· 0 citations
We present a detailed feasibility study of exotic muon decay searches using the muon beam at the High Intensity heavy-ion Accelerator Facility (HIAF). For the decay channel mu to eX0, where X0 denotes a new boson featuring LFV couplings, the produced electron carries very low energy when the mass of X0 approaches the m...
Ling-Zhi Dong, Jin-Ning Li, Le-Yun Gao et al.· 0 citations
We investigate an invisible lepton-flavor-violating scalar $\phi$ with exclusive $e-\mu$ couplings and study its resonant production via $\mu^+e^-\to\phi$ in fixed-target experiments. Since the effective center-of-mass energy is determined by the momentum of the initial-state bound electrons, atomic effects can signifi...
Jinhong Shen, Youpeng Wu, Zijian Wang et al.· 0 citations
Diphoton systems, with photon polarizations measurable at low energies, serve as ideal qubits and were first used to demonstrate quantum entanglement. However, due to the current absence of dedicated polarimeters at high-energy colliders, the entanglement properties of diphoton systems remain largely unexplored at the...
Yue Pan, Yipin Wang, Leyun Gao et al.· 0 citations
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