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The dual Meissner effect scenario of confinement is analysed using exact renormalisation group (ERG) equations. In particular, the low energy regime of SU(2) Yang-Mills is studied in a maximal Abelian gauge. It is shown that under general…

High Energy Physics - Theory · Physics 2007-05-23 Filipe Freire

Renormalization group analysis is made on the relation $m_{\rm H} \simeq \sqrt{2}m_t$ for masses of the top quark and the Higgs boson, which is predicted by the standard model based on generalized covariant derivatives with gauge and Higgs…

High Energy Physics - Phenomenology · Physics 2009-10-28 Tadatomi Shinohara , Kouzou Nishida , Hajime Tanaka , Ikuo S. Sogami

We use modern dimensionally-reduced effective field theory methods, with careful attention to scale hierarchies, to analyze and catalog the types of first-order electroweak phase transitions that are possible in the Standard Model Effective…

High Energy Physics - Phenomenology · Physics 2025-12-01 Eliel Camargo-Molina , Rikard Enberg , Johan Löfgren

We study the electroweak phase transition by lattice simulations of an effective 3--dimensional theory, for a Higgs mass of about 70 GeV. Exploiting, among others, a variant of the equal weight criterion of phase equilibrium, we obtain…

High Energy Physics - Lattice · Physics 2009-10-28 M. Guertler , E. -M. Ilgenfritz , J. Kripfganz , H. Perlt , A. Schiller

We discuss first-order electroweak phase transition in models with extended Higgs sectors for the case with relatively heavy additional scalar bosons. We first show that, by the combination of the sphaleron decoupling condition,…

High Energy Physics - Phenomenology · Physics 2022-08-31 Shinya Kanemura , Masanori Tanaka

Analytic estimates of screening masses in the symmetric, high-temperature phase of the SU(2)-Higgs model are reviewed. The size of the mass gap in the symmetric phase is closely related to the critical Higgs mass where the first-order…

High Energy Physics - Phenomenology · Physics 2007-05-23 Wilfried Buchmuller

We have explored the electroweak phase transition in minimal supergravity models by extending previous analysis of the one-loop Higgs potential to include finite temperature effects. Minimal supergravity is characterized by two higgs…

High Energy Physics - Phenomenology · Physics 2011-04-20 D. V. Nanopoulos , H. Pois

Asymptotically free renormalization group trajectories can be constructed in nonabelian Higgs models with the aid of generalized boundary conditions imposed on the renormalized action. We detail this construction within the languages of…

High Energy Physics - Phenomenology · Physics 2017-07-19 Holger Gies , Luca Zambelli

In this work, dual electroweak phase transition (EWPT) consisting of two phases, is carefully studied in the two-Higgs-doublet model with the $S_3$ discrete symmetry. The role of $S_3$ here is to further separate the stages of the…

High Energy Physics - Phenomenology · Physics 2023-02-22 Vo Quoc Phong , Nguyen Minh Anh , Hoang Ngoc Long

We revisited the scenario of electroweak baryogenesis in the presence of large Yukawa couplings, in which it was found previously that a strongly first order electroweak phase transition can occur with the Higgs mass at its observed value…

High Energy Physics - Phenomenology · Physics 2019-07-24 Arianna Braconi , Mu-Chun Chen , Geoffrey Gaswint

We investigate if the recent mass resonance excesses seen around 95 GeV at the Large Hadron Collider (LHC) can be reconciled with a first-order electroweak phase transition. Performing the first large-scale parameter scan of the Type I Two…

High Energy Physics - Phenomenology · Physics 2026-03-31 Ansh Bhatnagar , Djuna Croon , Philipp Schicho

The infrared behaviour of the standard model at finite temperature is determined by the confining phase of the SU(2)-Higgs model in three dimensions. Due to the Landau singularity of the three-dimensional gauge theory the perturbative…

High Energy Physics - Phenomenology · Physics 2009-10-28 W. Buchmuller , Z. Fodor

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 parameter space is performed, showing that a strongly first-order phase…

High Energy Physics - Phenomenology · Physics 2013-10-30 G. C. Dorsch , S. J. Huber , J. M. No

We analyze the effective 3 dimensional theory previously constructed for the MSSM and multi-Higgs models to determine the regions of parameter space in which the electroweak phase transition is sufficiently strong for a $B+L$ asymmetry to…

High Energy Physics - Phenomenology · Physics 2009-10-30 Glennys R. Farrar , Marta Losada

Unfreezing the radial degree of freedom, we study the three-dimensional Abelian Higgs model with compact gauge field and fundamentally charged matter. For small quartic Higgs self coupling and finite gauge coupling the model possesses a…

High Energy Physics - Lattice · Physics 2009-11-10 M. N. Chernodub , R. Feldmann , E. -M. Ilgenfritz , A. Schiller

We present the results of lattice computations of collisions of two expanding bubbles of true vacuum in the Abelian Higgs model with a first-order phase transition. New time-dependent analytical solutions for the Abelian field strength and…

High Energy Physics - Phenomenology · Physics 2009-10-31 E. J. Copeland , P. M. Saffin , O. Tornkvist

A natural question about Quantum Field Theory is whether there is a deformation to a trivial gapped phase. If the underlying theory has an anomaly, then symmetric deformations can never lead to a trivial phase. We discuss such discrete…

High Energy Physics - Theory · Physics 2019-01-09 Zohar Komargodski , Adar Sharon , Ryan Thorngren , Xinan Zhou

The type-II seesaw model is a possible candidate for simultaneously explaining non-vanishing neutrino masses and the observed baryon asymmetry of the Universe. In this work, we study in detail the pattern of phase transition and the…

High Energy Physics - Phenomenology · Physics 2022-09-07 Ruiyu Zhou , Ligong Bian , Yong Du

We study first-order electroweak phase transitions nonperturbatively, assuming any particles beyond the Standard Model are sufficiently heavy to be integrated out at the phase transition. Utilising high temperature dimensional reduction, we…

High Energy Physics - Lattice · Physics 2024-10-17 Oliver Gould , Sinan Güyer , Kari Rummukainen

We review the status of non-perturbative lattice studies of the electroweak phase transition. In the Standard Model, the complete phase diagram has been reliably determined, and the conclusion is that there is no phase transition at all for…

High Energy Physics - Lattice · Physics 2014-11-17 M. Laine , K. Rummukainen