3 papers
hep-ph2024
Distinguishing Dirac from Majorana Heavy Neutrino at Future Lepton Colliders
Qing-Hong Cao, Kun Cheng, Yandong Liu
We propose to identify whether a sterile neutrino is Dirac-type or Majorana-type by counting the peak of the rapidity distribution at lepton colliders. Our method requires only one…
hep-ph2023
Measuring Coupling at Lepton Colliders
Qing-Hong Cao, Kun Cheng, Yandong Liu +1
The quartic Higgs-gauge-boson coupling is sensitive to the electroweak symmetry breaking mechanism, however, it is challenging to be measured at the large hadron collide…
hep-ph2023
New observables for testing Bell inequalities in boson pair production
Qi Bi, Qing-Hong Cao, Kun Cheng +1
We show that testing Bell inequalities in pair systems by measuring their angular correlation suffers from the ambiguity in kinetical reconstruction of the di-lepton decay…