Muon collider sensitivity to dark Z' via radiative return versus vector boson fusion allows mixing parameter extraction from relative rates.
Searching for heavy neutral leptons at a future muon collider,
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In a U(1) gauged seesaw model, Z'Z' fusion processes at muon colliders enable HNL pair production via Z'Z'→H→NN and Z'Z'→NN, yielding LNV signals not suppressed by Higgs mixing.
Projected 2σ limits from a simulated 5.3 TeV muon-proton collider could reach |VℓN|² ≈ 10⁻⁶ for 200 GeV–1 TeV heavy Majorana neutrinos.
Muon colliders at 3 TeV and 10 TeV can probe branching ratios for h to SS decays in 4b and 2b2μ channels down to 10^{-3}–10^{-5}, improving on HL-LHC projections using machine learning.
citing papers explorer
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Dark Z' at a Muon Collider: Radiative Return versus Vector Boson Fusion
Muon collider sensitivity to dark Z' via radiative return versus vector boson fusion allows mixing parameter extraction from relative rates.
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New Avenues of Heavy Neutral Lepton at Muon Collider
In a U(1) gauged seesaw model, Z'Z' fusion processes at muon colliders enable HNL pair production via Z'Z'→H→NN and Z'Z'→NN, yielding LNV signals not suppressed by Higgs mixing.
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Search for heavy Majorana neutrinos at muon-proton colliders via lepton-number-violating signals
Projected 2σ limits from a simulated 5.3 TeV muon-proton collider could reach |VℓN|² ≈ 10⁻⁶ for 200 GeV–1 TeV heavy Majorana neutrinos.
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Exotic Higgs Decays at a Muon Collider
Muon colliders at 3 TeV and 10 TeV can probe branching ratios for h to SS decays in 4b and 2b2μ channels down to 10^{-3}–10^{-5}, improving on HL-LHC projections using machine learning.