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We investigate the production of a stochastic background of gravitational waves in the electroweak phase transition. We consider extensions of the Standard Model which can give very strongly first-order phase transitions, such that the…

Cosmology and Nongalactic Astrophysics · Physics 2016-05-25 Leonardo Leitao , Ariel Megevand

The dynamics of five dimensional Wilson line phases at finite temperature is studied in the one-loop approximation. We show that at temperatures of order T \sim 1/L, where L is the length of the compact space, the gauge symmetry is always…

High Energy Physics - Phenomenology · Physics 2010-02-03 Giuliano Panico , Marco Serone

We have conducted a revised analysis of the first-order phase transition that is associated with symmetry breaking in a classically scale-invariant model that has been extended with a new $SU(2)$ gauge group. By incorporating recent…

Cosmology and Nongalactic Astrophysics · Physics 2023-04-03 Alexandros Karam , Maciej Kierkla , Bogumiła Świeżewska

We revisit the electroweak phase transition in the scalar singlet extension of the standard model with a $\mathbb{Z}_2$ symmetry. In significant parts of the parameter space the phase transition occurs in two steps - including canonical…

High Energy Physics - Phenomenology · Physics 2024-06-18 Prateek Agrawal , Simone Blasi , Alberto Mariotti , Michael Nee

In the standard scenario, the electroweak phase transition is a first order phase transition which completes by the nucleation of critical bubbles. Recently, there has been speculation that the standard picture of the electroweak phase…

High Energy Physics - Phenomenology · Physics 2007-05-23 Greg W. Anderson

In this work, we demonstrate the complete process of using space-based gravitational wave detectors to measure properties of the stochastic gravitational wave background arising from a first-order electroweak phase transition. Based on…

High Energy Physics - Phenomenology · Physics 2026-05-21 Shuo Guan , Huai-Ke Guo , Dian Jiao , Qingyuan Liang , Lei Wu , Yang Zhang

Electroweak phase transition in a magnetic field is investigated within the one-loop and ring diagram contributions to the effective potential in the minimal Standard Model. All fundamental fermions and bosons are included with their actual…

High Energy Physics - Phenomenology · Physics 2009-10-31 V. Skalozub , M. Bordag

We study gauge dependence of gravitational waves produced from a first-order phase transition in classical scale-invariant $U(1)'$ models. Accidental gauge independence of the one-loop effective potential in this class of models is spoiled…

High Energy Physics - Phenomenology · Physics 2017-12-14 Cheng-Wei Chiang , Eibun Senaha

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

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

We study models of strong first order `low' temperature electroweak phase transition. To achieve this we propose a class of Higgs effective potential models which preserve the known features of the present day massive phase. However, the…

High Energy Physics - Phenomenology · Physics 2012-05-07 Jeremiah Birrell , Johann Rafelski

We study on the lattice the 3d SU(2)+Higgs model, which is an effective theory of a large class of 4d high temperature gauge theories. Using the exact constant physics curve, continuum ($V\to\infty, a\to 0$) results for the properties of…

High Energy Physics - Lattice · Physics 2009-10-28 K. Kajantie , M. Laine , K. Rummukainen , M. Shaposhnikov

We investigate the effects of inhomogeneous scalar field configurations on the electroweak phase transition. For this purpose we calculate the leading perturbative correction to the wave function correction term $Z(\vph,T)$, i.e., the…

High Energy Physics - Phenomenology · Physics 2009-10-22 Dirk-Uwe Jungnickel , Dirk Walliser

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 study the electroweak phase transition and the critical bubble in the scale-invariant two Higgs doublet model taking the recent LHC data into account. The sphaleron energy in this model is evaluated for the first time. It is found that…

High Energy Physics - Phenomenology · Physics 2015-05-22 Kaori Fuyuto , Eibun Senaha

These lecture notes are based on a course given by Mark Hindmarsh at the 24th Saalburg Summer School 2018 and written up by Marvin L\"uben, Johannes Lumma and Martin Pauly. The aim is to provide the necessary basics to understand…

Cosmology and Nongalactic Astrophysics · Physics 2021-05-26 Mark B. Hindmarsh , Marvin Lüben , Johannes Lumma , Martin Pauly

We review the production of gravitational waves by an electroweak first order phase transition. The resulting signal is a good candidate for detection at next-generation gravitational wave detectors, such as LISA. Detection of such a source…

High Energy Physics - Phenomenology · Physics 2023-07-28 David J. Weir

We present results obtained from a numerical investigation of the electroweak phase transition in the SU(2)-Higgs model. The simulations are performed at two values of the Higgs boson mass, $M_H\approx 20$ GeV and $M_H\approx 50$ GeV. While…

High Energy Physics - Lattice · Physics 2009-10-28 F. Csikor , Z. Fodor , J. Hein , K. Jansen , A. Jaster , I. Montvay

We study the thermodynamics of the electroweak theory at a finite lepton number density. The phase diagram of the theory is calculated by relating the full 4-dimensional theory to a 3-dimensional effective theory which has been previously…

High Energy Physics - Phenomenology · Physics 2009-11-10 A. Gynther

We investigate first order phase transitions in a holographic setting of five-dimensional Einstein gravity coupled to a scalar field, constructing phase diagrams of the dual field theory at finite temperature. We scan over the…

High Energy Physics - Theory · Physics 2021-04-30 Fëanor Reuben Ares , Mark Hindmarsh , Carlos Hoyos , Niko Jokela

In an extension of the Standard Model with a scalar color octet, the possibility of the strongly first-order electroweak phase transition is studied, by examining the finite-temperature effective Higgs potential at the one-loop level. It is…

High Energy Physics - Phenomenology · Physics 2010-04-14 S. W. Ham , Seong-a Shim , S. K. Oh