6 papers · 1 filter
Unveiling the Invisible: ALPs and Sterile Neutrinos at the LHC and HL-LHC
Kingman Cheung, C. J. Ouseph, Sin Kyu Kang
We investigate the potential of using the signature of mono-Higgs plus large missing energies to constrain on two new physics models, namely the model of an axion-like particle (AL…
Searching for Dark Photon Tridents Through Primordial Black Hole Signatures
Kingman Cheung, C. J. Ouseph, Po-Yan Tseng +1
The detection of gamma-ray signals from primordial black holes (PBHs) could provide compelling evidence for their role as a dark matter candidate, particularly through the observat…
Exploring interference effects between two ALP effective operators at the LHC
Kingman Cheung, Chih-Ting Lu, C. J. Ouseph +1
We observe that most studies of axion-like particle (ALP) production channels at the Large Hadron Collider (LHC) focus on a single type of ALP operator for each process in the effe…
Interpretation of excess in using a light axion-like particle
Kingman Cheung, C. J. Ouseph
We interpret the recent excess in a rare decay of the Higgs boson, , using a light axion-like particle (ALP) in the massrange GeV.The dominant decay of such…
Probing the Gauge-boson Couplings of Axion-like Particle at the LHC and High-Luminosity LHC
Kingman Cheung, Wanyon Hsiao, C. J. Ouseph +1
In this work, we calculate the sensitivities on the gauge-boson couplings , , and of an axion-like particle (ALP) that one can achieve at the LHC with…
Probing dark photons from a light scalar at Belle II
Kingman Cheung, Yongkyu Kim, Youngjoon Kwon +3
In the minimal extension of the Standard Model (SM), a new gauge boson referred to as "dark photon" is predicted. The dark-photon mass can be generated from an additional Hi…