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A possible solution to the observed baryon asymmetry in the universe is described, based on the physics of the standard model of electroweak interactions. At temperatures high enough electroweak physics provides violation of baryon number,…

High Energy Physics - Phenomenology · Physics 2007-05-23 Nicholas Petropoulos

We study the electroweak phase transition dynamics with a three-dimensional standard model effective field theory under a gauge-invariant approach. We observe that, at the two-loop level, the phase transition parameters obtained with the…

High Energy Physics - Phenomenology · Physics 2024-08-20 Renhui Qin , Ligong Bian

Phase transitions induced by high temperatures and strong magnetic fields are investigated in the Standard model. The consistent effective potential including the one-loop and ring diagram contributions is calculated and investigated for…

High Energy Physics - Phenomenology · Physics 2007-05-23 V. Skalozub , M. Bordag

We analyse and compare the finite-temperature electroweak phase transition properties of classically (non)conformal extensions of the Standard Model. In the classically conformal scenarios the breaking of the electroweak symmetry is…

High Energy Physics - Phenomenology · Physics 2020-03-11 Francesco Sannino , Jussi Virkajärvi

We study weakly first order cosmological phase transitions in finite temperature field theories. Focusing on the standard electroweak theory and its minimal supersymmetric extension, we identify the regimes of Higgs masses for which the…

High Energy Physics - Phenomenology · Physics 2009-10-31 Marcelo Gleiser , Mark Trodden

Using dimensional reduction we construct an effective 3D theory of the Minimal Supersymmetric Standard Model at finite temperature. The final effective theory is obtained after three successive stages of integration out of massive…

High Energy Physics - Phenomenology · Physics 2016-09-06 Marta Losada

A quantitative discussion of nonperturbative effects for the high temperature electroweak phase transition is presented. We propose a method for the computation of the temperature dependent effective scalar potential that takes into account…

High Energy Physics - Phenomenology · Physics 2009-10-28 B. Bergerhoff , C. Wetterich

In the electroweak phase transition there arises the problem of baryon number washout by sphaleron transitions, which can be avoided if the phase transition is strongly enough first order. The minimal supersymmetric standard model has just…

High Energy Physics - Phenomenology · Physics 2009-10-28 A. T. Davies , C. D. Froggatt , R. G. Moorhouse

We study the electroweak baryogenesis in the framework of the effective field theory. Our study shows that by introducing a light singlet scalar particle and a dimension-5 operator, it can provide the strong first order phase transition and…

High Energy Physics - Phenomenology · Physics 2015-10-21 Fa Peng Huang , Chong Sheng Li

We study the electroweak phase transition in the alignment limit of the CP-conserving two-Higgs-doublet model (2HDM) of Type I and Type II. The effective potential is evaluated at one-loop, where the thermal potential includes Daisy…

High Energy Physics - Phenomenology · Physics 2018-07-04 Jérémy Bernon , Ligong Bian , Yun Jiang

In a series of two papers, we make a comparative analysis of the performance of conventional perturbation theory to analyze electroweak phase transition in the real triplet extension of Standard Model ($\Sigma$SM). In Part I (this paper),…

High Energy Physics - Phenomenology · Physics 2019-08-14 Lauri Niemi , Hiren H. Patel , Michael J. Ramsey-Musolf , Tuomas V. I. Tenkanen , David J. Weir

We obtain the effective potential at finite temperature within the left-right symmetric model. We take the Higgs sector to consist of two doublets and calculate its finite temperature effective potential up to the order of…

High Energy Physics - Phenomenology · Physics 2008-11-26 J. Choi , R. R. Volkas

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

The electroweak phase transition is investigated by means of the perturbatively calculated high temperature effective potential. An analytic result to order $g^4,\lambda^2$ is presented for the Abelian Higgs model, the SU(2)-Higgs model and…

High Energy Physics - Phenomenology · Physics 2007-05-23 A. Hebecker

The primary objective of this work is to investigate the cosmological phase transitions in the early Universe, with a focus on the electroweak phase transition in the Standard Model and its extensions. In the Standard Model, the…

High Energy Physics - Phenomenology · Physics 2024-07-02 Apostolos Giovanakis

We reexamine the strength of the first order phase transition in the electroweak theory supplemented by an extra Higgs doublet. The finite-temperature effective potential, $V_{eff}$, is computed to one-loop order, including the summation of…

High Energy Physics - Phenomenology · Physics 2009-10-28 James M. Cline , Pierre-Anthony Lemieux

The basic tool for the study of the electroweak phase transition is $V_{eff} (\phi,T)$, the one-loop finite-temperature effective potential, improved by all-loop resummations of the most important infrared contributions. In this paper we…

High Energy Physics - Phenomenology · Physics 2008-11-26 J. R. Espinosa , M. Quirós , F. Zwirner

New field content beyond that of the Standard Model of particle physics can alter the thermal history of electroweak symmetry breaking in the early universe. In particular, the symmetry breaking may have occurred through a sequence of…

High Energy Physics - Phenomenology · Physics 2021-05-12 Lauri Niemi , Michael J. Ramsey-Musolf , Tuomas V. I. Tenkanen , David J. Weir

We investigate the possibility of realizing strong first-order electroweak phase transition (SFOEWPT) in an effective field theory framework where the Standard Model is extended with a complex scalar singlet ($\phi$) charged under a local…

High Energy Physics - Phenomenology · Physics 2026-04-14 Arka Bhattacharyya , Sanjoy Biswas , Saurabh Niyogi

We compute the three-dimensional effective action for the minimal supersymmetric standard model, which describes the light modes of the theory near the finite-temperature electroweak phase transition, keeping the one-loop corrections from…

High Energy Physics - Phenomenology · Physics 2009-10-28 James M. Cline , Kimmo Kainulainen