Speaker
Mukesh Kumar
(University of the Witwatersrand)
Description
The Circular Electron-Positron Collider (CEPC) is expected to operate at center-of-mass energies of 240–250 GeV to produce the Standard Model Higgs boson and make precise measurements. This will also allow for the production of additional lighter scalars. Following the excesses seen at the LHC around $m_S \approx 95$ GeV, we explore the feasibility of a singlet scalar $S$ in a 2HDM+$S$ parameter space {\it via} $e^+e^- \to ZS$ using missing-mass measurement technique, where $Z$-boson decays to either of muon or electron pairs. A study of the parameter space allowed by the LHC data will be detailed. A multi-variate analysis will be shown using machine learning methods, in addition with effects of polarized $e^\pm$ beams.
Primary authors
Mukesh Kumar
(University of the Witwatersrand)
Prof.
Bruce Mellado
(University of the Witwatersrand)
Mr
Pramod Sharma
Mr
Karabo Mosala
(University of the Witwatersrand)
Mr
Thuso Mathaha
(University of the Witwatersrand)
