Electro-Weak Phase Transitions and Collider Signals in the Aligned 2-Higgs Doublet Model

arXiv:2604.14099 · hep-ph, astro-ph.CO · Submitted 2026-04-15 · Read on arXiv

hep-ph, astro-ph.CO

Submitted: 2026-04-15

Updated: 2026-09-09

Comments: 42 pages, 11 figures, 3 tables

Journal ref: JHEP 09 (2026) 023

DOI: 10.1007/JHEP09(2026)023

License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/

Terminology

• Gravitational Wave — 27× in this paper
• Phase Transitions — 15× in this paper · explained in 2 episodes
• Alignment — 7× in this paper · explained in 1 episode
• Standard Model — 7× in this paper
• Laser Interferometer Space Antenna — 5× in this paper
• Broken Power Law — 3× in this paper
• Leading Order — 3× in this paper
• Decoupling — 2× in this paper · explained in 2 episodes
• Einstein Telescope — 2× in this paper
• Large Hadron Collider — 2× in this paper
• Symmetry Breaking — 2× in this paper · explained in 3 episodes
• Vector Boson Fusion — 2× in this paper
• Benchmark — 1× in this paper · explained in 2 episodes
• Beyond the Standard Model Phase Transitions — 1× in this paper
• Clustering — 1× in this paper · explained in 2 episodes
• Confidence Level — 1× in this paper
• Double Broken Power Law — 1× in this paper
• First-Order Transition — 1× in this paper · explained in 2 episodes
• Information Criterion — 1× in this paper
• Infrared Regularised — 1× in this paper
• Markov-Chain Monte-Carlo — 1× in this paper
• Metastability — 1× in this paper · explained in 2 episodes
• Parton Distribution Function — 1× in this paper
• Proposing New Physics — 1× in this paper
• Signal-to-Noise Ratio — 1× in this paper
• Unified Framework — 1× in this paper · explained in 5 episodes

Sources

• Electroweak phase transition in the 2HDM: Collider and gravitational wave complementarity
• Multi-step Strong First-Order Electroweak Phase Transitions in the Inverted Type-I 2HDM: Parameter Space, Gravitational Waves, and Collider Phenomenology
• Gravitational wave and collider signals in complex two-Higgs doublet model with dynamical CP-violation at finite temperature
• Multi-step phase transitions and gravitational waves in the inert doublet model
• Two Higgs doublets, Effective Interactions and a Strong First-Order Electroweak Phase Transition
• A strong electroweak phase transition in the 2HDM after LHC8
• Strong First Order Electroweak Phase Transition in the CP-Conserving 2HDM Revisited
• A new insight into the phase transition in the early Universe with two Higgs doublets
• Revisiting lepton-specific 2HDM in light of muon g-2 anomaly
• Strong first order electroweak phase transition in 2HDM confronting future Z & Higgs factories
• Nonperturbative Analysis of the Electroweak Phase Transition in the Two Higgs Doublet Model
• On the validity of perturbative studies of the electroweak phase transition in the Two Higgs Doublet model
• Electroweak Baryogenesis from Exotic Electroweak Symmetry Breaking
• Resonant top pair searches at the LHC: a window to electroweak phase transition
• Dark Matter and Nature of Electroweak Phase Transition with an Inert Doublet
• Light dark matter around 100 GeV from the inert doublet model
• Intermediate Charge-Breaking Phases and Symmetry Non-Restoration in the 2-Higgs-Doublet Model
• Self Consistent Thermal Resummation: A Case Study of the Phase Transition in 2HDM
• Z and Higgs Factory Implications of Two Higgs Doublets with First-Order Phase Transitions
• Double and Triple Higgs Production to probe the Electroweak Phase Transition

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