13 citations · 19 across the 12 of their papers we have counts for
10 papers · 1 filter
Can a pseudoscalar with a mass of 365 GeV in the 2HDM explain the CMS excess?
Chih-Ting Lu, Kingman Cheung, Dongjoo Kim +2
We analyze the CMS-reported t tbar excess within conventional Two-Higgs-Doublet Models of Types I, II, X, and Y, using the best-fit pseudoscalar parameters MA = 365 GeV, GammaA ove…
Searching for dark photons from dark-scalar decays at CEPC and FCC-ee
Kingman Cheung, Fei-Tung Chung, Zeren Simon Wang
We investigate the sensitivity of proposed CEPC and FCC-ee with a center-of-mass energy of 240 GeV to long-lived dark photons heavier than 2 GeV that are pair-produced via the prom…
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…
Probing a Heavy Dark Boson at Multi-TeV Muon Colliders: Leveraging the Optimized Recoil Mass Technique
Kingman Cheung, Jinheung Kim, Soojin Lee +2
We investigate the discovery potential of multi-TeV muon colliders for a heavy dark boson () with a mass above 1 TeV through the associated production channel $μ^+μ^…
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…
Can a pseudoscalar with a mass of 365 GeV in two-Higgs-doublet models explain the CMS excess?
Chih-Ting Lu, Kingman Cheung, Dongjoo Kim +2
We investigate the recently reported excess by the CMS Collaboration within the framework of conventional Two-Higgs-Doublet Models (2HDMs). Considering all four types (I…
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…
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 $…
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 a…
Bounds on Higgs-Portal models from the LHC Higgs data
Kingman Cheung, P. Ko, Jae Sik Lee +1
In a number of Higgs-portal models, an isospin-singlet scalar boson generically appears at the electroweak scale and can mix with the Standard Model (SM) Higgs boson with a…