5 papers
Cutoff Scales in the Type-I 2HDM with Strongly First-Order Electroweak Phase Transitions: One-Step versus Multistep
Jin-Hwan Cho, Dongjoo Kim, Jinheung Kim +1
We investigate the UV viability of strongly first-order electroweak phase transitions (SFOEWPTs) in the Type-I two-Higgs-doublet model (2HDM), considering both the Normal and Inver…
Strong First-Order Electroweak Phase Transitions and Gravitational Waves in the Normal Two-Higgs-Doublet Model: A Comparative Study of the Four Yukawa Types and Thermal Resummation Schemes
Jin-Hwan Cho, Dongjoo Kim, Jinheung Kim +2
We present a comprehensive global analysis of strong first-order electroweak phase transitions (SFOEWPTs) and their associated stochastic gravitational-wave (GW) backgrounds within…
Multi-step Strong First-Order Electroweak Phase Transitions in the Inverted Type-I 2HDM: Parameter Space, Gravitational Waves, and Collider Phenomenology
Soojin Lee, Dongjoo Kim, Jin-Hwan Cho +2
We investigate the electroweak phase transition (EWPT) within the inverted Type-I two-Higgs-doublet model, where the observed Higgs boson is identified as the hea…
Probing Light Fermiophobic Higgs Boson via diphoton jets at the HL-LHC
Daohan Wang, Jin-Hwan Cho, Jinheung Kim +3
In this study, we explore the phenomenological signatures associated with a light fermiophobic Higgs boson, , within the type-I two-Higgs-doublet model at the HL-LHC. Ou…
Constraints from Heavy Higgs boson masses in the two Higgs doublet model
Jin-Hwan Cho, Tae Young Kim, Jeonghyeon Song
Upon the absence of signals of new physics at the LHC, a reasonable strategy is to assume that new particles are very heavy and the other model parameters are unknown yet. In the a…