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Light scalar production from Higgs bosons and FASER 2
Iryna Boiarska, Kyrylo Bondarenko, Alexey Boyarsky +3
The most general renormalizable interaction between the Higgs sector and a new gauge-singlet scalar is governed by two interaction terms: cubic and quartic. The quartic interac…
Phenomenology of GeV-scale scalar portal
Iryna Boiarska, Kyrylo Bondarenko, Alexey Boyarsky +3
We review and revise the phenomenology of the scalar portal -- a new scalar particle with the mass in GeV range that mixes with the Higgs boson. In particular, we consider producti…
Probing new physics with displaced vertices: muon tracker at CMS
Kyrylo Bondarenko, Alexey Boyarsky, Maksym Ovchynnikov +2
Long-lived particles can manifest themselves at the LHC via "displaced vertices" - several charged tracks originating from a position separated from the proton interaction point by…
Probing baryon asymmetry of the Universe at LHC and SHiP
Iryna Boiarska, Kyrylo Bondarenko, Alexey Boyarsky +4
The origin of the baryon asymmetry of the Universe (BAU) is one of the major puzzles beyond the Standard Model. Detecting the particles responsible for the generation of the BAU wo…
Sensitivity of the intensity frontier experiments for neutrino and scalar portals: analytic estimates
Kyrylo Bondarenko, Alexey Boyarsky, Maksym Ovchynnikov +1
In recent years, a number of intensity-frontier experiments have been proposed to search for feebly interacting particles with a mass in the GeV range. We show analytically how the…