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We study in this work a scenario that the universe undergoes a two step phase transition with the first step happened to the dark matter sector and the second step being the transition between the dark matter and the electroweak vacuums,…

High Energy Physics - Phenomenology · Physics 2017-09-13 Wei Chao , Huai-Ke Guo , Jing Shu

Thermal corrections in classically conformal models typically induce a strong first-order electroweak phase transition, thereby resulting in a stochastic gravitational wave background that could be detectable at gravitational wave…

High Energy Physics - Phenomenology · Physics 2017-08-02 Luca Marzola , Antonio Racioppi , Ville Vaskonen

We perform a nonperturbative lattice study of the electroweak phase transition in the real singlet scalar extension of the Standard Model.We consider both the heavy and light singlet-like scalar regimes at non-zero singlet-doublet mixing…

High Energy Physics - Phenomenology · Physics 2024-08-13 Lauri Niemi , Michael J. Ramsey-Musolf , Guotao Xia

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

In this paper we consider an extension of the Standard Model(SM) with additional gauge singlets which exhibits a strong first order phase transition. Due to this first order phase transition in the early universe gravitational waves are…

High Energy Physics - Phenomenology · Physics 2018-12-05 Mina Saeedhoseini , Ali Tofighi

We investigate a minimal singlet-scalar extension to the Standard Model that achieves a strong first-order electroweak phase transition. The singlet can be naturally light because of an approximate shift symmetry and no extra hierarchy…

High Energy Physics - Phenomenology · Physics 2023-06-19 Keisuke Harigaya , Isaac R. Wang

We derive an effective dimensionally reduced theory for the Standard Model augmented by a real singlet scalar. We treat the singlet as a superheavy field and integrate it out, leaving an effective theory involving only the Higgs and…

High Energy Physics - Phenomenology · Physics 2017-03-06 Tomáš Brauner , Tuomas V. I. Tenkanen , Anders Tranberg , Aleksi Vuorinen , David J. Weir

We investigate the evolution of the electroweak phase transition, using a one-Higgs effective potential that can be regarded as an approximation for the Minimal Supersymmetric Standard Model. The phase transition occurs in a small interval…

High Energy Physics - Phenomenology · Physics 2009-10-31 Ariel Megevand

A first order electroweak phase transition probes physics beyond the Standard Model on multiple frontiers and therefore is of immense interest for theoretical exploration. We conduct a model-independent study of the effects of relevant…

High Energy Physics - Phenomenology · Physics 2024-08-20 Upalaparna Banerjee , Sabyasachi Chakraborty , Suraj Prakash , Shakeel Ur Rahaman

Taking on a new perspective of the electroweak phase transition, we investigate in detail the role played by the depth of the electroweak minimum ("vacuum energy difference"). We find a strong correlation between the vacuum energy…

High Energy Physics - Phenomenology · Physics 2016-06-21 Christopher P. D. Harman , Stephan J. Huber

We study the dynamics of electroweak symmetry-breaking in an extension of the Standard Model where the Higgs sector is augmented by the addition of a real (Y = 0) isospin triplet. We show that this scenario exhibits a novel, two-step…

High Energy Physics - Phenomenology · Physics 2014-04-16 Hiren H. Patel , Michael J. Ramsey-Musolf

An addition to the Standard Model of a real, gauge-singlet scalar field, coupled via a Higgs portal interaction, can reopen the possibility of a strongly first-order electroweak phase transition (EWPT) and successful electroweak…

High Energy Physics - Phenomenology · Physics 2017-08-02 Gowri Kurup , Maxim Perelstein

We consider the Type-II seesaw model extended with another Higgs doublet, which is odd under the $Z_2$ symmetry. We look for the possibility of triggering the electroweak symmetry breaking via radiative effects. The Higgs mass parameter…

High Energy Physics - Phenomenology · Physics 2024-01-11 Shilpa Jangid , Hiroshi Okada

We present a detailed analysis of strong first-order electroweak phase transitions within the extension of the Standard Model by a complex scalar singlet (cxSM). Focusing on the impact of renormalization scale and gauge dependence, we…

High Energy Physics - Phenomenology · Physics 2025-12-01 Thomas Biekötter , Andrii Dashko , Maximilian Löschner , Georg Weiglein

The electroweak phase transition is investigated near to its endpoint in the framework of an effective three-dimensional model. We measure the very weak interface tension with the tunneling correlation length method. First results for the…

High Energy Physics - Lattice · Physics 2009-10-30 M. Gürtler , E. -M. Ilgenfritz , A. Schiller , C. Strecha

Computing the properties of the bubble wall of a cosmological first order phase transition at electroweak scale is of paramount importance for the correct prediction of the baryon asymmetry of the universe and the spectrum of gravitational…

Cosmology and Nongalactic Astrophysics · Physics 2022-02-23 Marek Lewicki , Marco Merchand , Mateusz Zych

We study the Electroweak phase transition with the Standard Model effective field theory at finite temperature and finite density. Utilizing the dimensional reduction approach, we construct the tree dimensional thermal effective field…

High Energy Physics - Phenomenology · Physics 2024-07-03 Renhui Qin , Ligong Bian

In this work we shall consider the effects of a non-trivial topology on the effective potential of the Standard Model. Specifically we shall assume that the spacetime topology is $S^1\times R^3$ and we shall calculate the Standard Model…

High Energy Physics - Phenomenology · Physics 2025-04-02 V. K. Oikonomou

Upcoming gravitational wave (GW) detectors might detect a stochastic background of GWs potentially arising from many possible sources, including bubble collisions from a strongly first-order electroweak phase transition. We investigate…

High Energy Physics - Phenomenology · Physics 2014-11-20 John Kehayias , Stefano Profumo

The electroweak phase transition (EWPT) is crucial for cosmology and particle physics, with a profound impact on electroweak baryogenesis, symmetry breaking, and gravitational wave (GW) signals. However, many studies overlook key aspects of…

High Energy Physics - Phenomenology · Physics 2025-07-14 Haibin Chen , Yun Jiang