3 papers
hep-ph2026
New Avenues of Heavy Neutral Lepton at Muon Collider
Fa-Xin Yang, Feng-Lan Shao, Zhi-Long Han +1
With initial state radiation, the multi-TeV muon collider can be regarded as an electroweak boson collider. The dominant production mode of the certain process becomes the vector b…
hep-ph2026
Same-Sign Tetralepton Signature at TRISTAN
Lin-Kun Yan, Zhi-Long Han, Feng-Lan Shao +1
Naturally tiny neutrino masses can be explained by the low scale seesaw with heavy neutral lepton coupling to the neutrinophilic Higgs doublet , which obtains a much sma…
hep-ph2025
Lepton Number Violation Higgs Decay at Muon Collider
Fa-Xin Yang, Feng-Lan Shao, Zhi-Long Han +3
In this paper, we consider the scalar singlet extension of type-I seesaw, where a scalar singlet and heavy neutral lepton are further introduced. The Majorana mass term of…