Two Higgs doublets, effective interactions and a strong first-order electroweak phase transition

L Biermann, C Englert, M Mühlleitner - Journal of High Energy Physics, 2022 - Springer
A bstract It is well-known that type II two Higgs doublet models (2HDMs) can struggle to
facilitate a strong first-order electroweak phase transition in the early universe whilst …

A strong electroweak phase transition in the 2HDM after LHC8

GC Dorsch, SJ Huber, JM No - Journal of High Energy Physics, 2013 - Springer
A bstract The nature of the electroweak phase transition in two-Higgs-doublet models is
revisited in light of the recent LHC results. A scan over an extensive region of their …

The Higgs vacuum uplifted: revisiting the electroweak phase transition with a second Higgs doublet

GC Dorsch, SJ Huber, K Mimasu, JM No - Journal of High Energy Physics, 2017 - Springer
A bstract The existence of a second Higgs doublet in Nature could lead to a cosmological
first order electroweak phase transition and explain the origin of the matter-antimatter …

Effective 2HDM Yukawa interactions and a strong first-order electroweak phase transition

D Azevedo, L Biermann, C Englert… - Journal of High Energy …, 2024 - Springer
A bstract The top quark as the heaviest particle in the Standard Model (SM) defines an
important mass scale for Higgs physics and the electroweak scale itself. It is therefore a well …

Hierarchical versus degenerate 2HDM: The LHC run 1 legacy at the onset of run 2

GC Dorsch, SJ Huber, K Mimasu, JM No - Physical Review D, 2016 - APS
Current discussions of the allowed two-Higgs-doublet model parameter space after LHC run
1 and the prospects for run 2 are commonly phrased in the context of a quasidegenerate …

Cornering the two Higgs doublet model type II

O Atkinson, M Black, A Lenz, A Rusov… - Journal of High Energy …, 2022 - Springer
A bstract We perform a comprehensive study of the allowed parameter space of the Two
Higgs Doublet Model of Type II (2HDM-II). Using the theoretical framework flavio we …

The flavourful present and future of 2HDMs at the collider energy frontier

O Atkinson, M Black, C Englert, A Lenz, A Rusov… - Journal of High Energy …, 2022 - Springer
A bstract We study the intersection of flavour and collider physics for Two-Higgs-Doublet
models of Type I and II. Drawing from the flavour precision-LHC exotics search …

Anatomy of exotic Higgs decays in 2HDM

F Kling, JM No, S Su - Journal of High Energy Physics, 2016 - Springer
A bstract Large mass splittings between new scalars in two-Higgs-doublet models (2HDM)
open a key avenue to search for these new states via exotic heavy Higgs decays. We …

Intermediate charge-breaking phases and symmetry non-restoration in the 2-Higgs-Doublet Model

M Aoki, L Biermann, C Borschensky, IP Ivanov… - Journal of High Energy …, 2024 - Springer
A bstract The Higgs potentials of extended Higgs sectors exhibit a complex and interesting
vacuum structure. When travelling back in time, ie going to higher temperatures, the …

The CP-violating 2HDM in light of a strong first order electroweak phase transition and implications for Higgs pair production

P Basler, M Mühlleitner, J Wittbrodt - Journal of high energy physics, 2018 - Springer
A bstract We investigate the strength of the electroweak phase transition (EWPT) within the
CP-violating 2-Higgs-Doublet Model (C2HDM). The 2HDM is a simple and well-studied …