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The electroweak phase transition in a constant hypermagnetic field=A0 is studied in the Standard Model. The symmetry behaviour is investigated within the consistent effective potential of the scalar and magnetic fields at finite…

High Energy Physics - Phenomenology · Physics 2007-05-23 Vladimir Skalozub , Vadim Demchik

We study electroweak baryogenesis driven by the top quark in two Higgs doublet model that allows flavor-changing neutral Higgs couplings. Taking Higgs sector couplings and the additional top Yukawa coupling $\rho_{tt}$ to be…

High Energy Physics - Phenomenology · Physics 2017-09-06 George W. -S. Hou

We analyze electroweak baryogenesis in supersymmetric theories with flavor-dependent CP-violating phases. We generalize the standard approach to include the flavor dependence of the CP-violating sources and obtain an analytical approximate…

High Energy Physics - Phenomenology · Physics 2009-11-07 D. Delepine , R. Gonzalez Felipe , S. Khalil , A. M. Teixeira

In electroweak baryogenesis the baryon asymmetry of the universe is created during the electroweak phase transition. The quantum transport equations governing the dynamics of the plasma particles can be derived in the vev-insertion…

High Energy Physics - Phenomenology · Physics 2020-03-18 Marieke Postma , Jorinde van de Vis

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

We demonstrate that the electroweak baryogenesis can be realized in the extended Standard Model with sequential fourth generation fermions (SM4). The solution to the coupled Dyson-Schwinger equations for the fermion and Higgs masses…

High Energy Physics - Phenomenology · Physics 2025-09-04 Hsiang-nan Li

We present a comprehensive study of the electroweak phase transition in composite Higgs models, where the Higgs arises from a new, strongly-coupled sector which confines near the TeV scale. This work extends our study in Ref. [1]. We…

High Energy Physics - Phenomenology · Physics 2018-12-11 Sebastian Bruggisser , Benedict von Harling , Oleksii Matsedonskyi , Geraldine Servant

We study stochastic gravitational wave production and baryon number generation at electroweak phase transition with the two Higgs doublet models. The produced stochastic gravitational wave during the strongly first-order phase transition…

High Energy Physics - Phenomenology · Physics 2022-04-19 Ruiyu Zhou , Ligong Bian

We note that the maximum temperature during reheating can be much greater than the reheating temperature $T_r$ at which the Universe becomes radiation dominated. We show that the Standard Model anomalous $(B+L)$-violating processes can…

High Energy Physics - Phenomenology · Physics 2009-10-31 Sacha Davidson , Marta Losada , Antonio Riotto

The electroweak sphaleron process breaks the baryon number conservation within the realms of the Standard Model of particle physics (SM). Recently, it is pointed out that its decoupling may provide the out-of-equilibrium condition required…

High Energy Physics - Phenomenology · Physics 2024-06-18 Muzi Hong , Kohei Kamada , Jun'ichi Yokoyama

We discuss electroweak baryogenesis in aligned two Higgs doublet models. It is known that in this model the severe constraint from the experimental results for the electron electric dipole moment can be avoided by destructive interference…

High Energy Physics - Phenomenology · Physics 2022-09-21 Kazuki Enomoto , Shinya Kanemura , Yushi Mura

We present a first-principles numerical computation of the baryon asymmetry in electroweak-scale baryogenesis. For the scenario of Cold Baryogenesis, we consider a one fermion-family reduced CP-violating two Higgs-doublet model, including a…

High Energy Physics - Phenomenology · Physics 2015-05-28 Zong-Gang Mou , Paul M. Saffin , Anders Tranberg

We investigate the impact of the tau and bottom Yukawa couplings on the transport dynamics for electroweak baryogenesis in supersymmetric extensions of the Standard Model. Although it has generally been assumed in the literature that all…

High Energy Physics - Phenomenology · Physics 2010-04-06 Daniel J. H. Chung , Bjorn Garbrecht , Michael J. Ramsey-Musolf , Sean Tulin

We study electric dipole moment bounds on CP-violating phases in the MSSM with special emphasis on the cancelation scenario. We find that in the range favored by electroweak baryogenesis ({\it i.e.,} $|\mu|\simeq M_1$ or $|\mu|\simeq M_2$),…

High Energy Physics - Phenomenology · Physics 2008-11-26 Seyed Yaser Ayazi

In many strongly-interacting models of electroweak symmetry breaking the lowest-lying observable particle is a pseudo-Goldstone boson of approximate scale symmetry, the pseudo-dilaton. Its interactions with Standard Model particles can be…

High Energy Physics - Phenomenology · Physics 2015-06-03 Bruce A. Campbell , John Ellis , Keith A. Olive

We describe a new effect which produces baryons at a first order electroweak phase transition. It operates when there is a CP-violating field present on propagating bubble walls. The novel aspect is that it involves a purely classical…

High Energy Physics - Phenomenology · Physics 2010-11-01 Michael Joyce , Tomislav Prokopec , Neil Turok

I review the status of the strength of the electroweak phase transition, and electroweak baryogenesis in the Minimal Supersymmetric Standard Model (work done with K. Kainulainen and M. Joyce). The emphasis is on new brane-inspired ideas…

High Energy Physics - Phenomenology · Physics 2007-05-23 James M. Cline

Non-perturbative lattice simulations have shown that there is no electroweak phase transition in the Standard Model for the allowed Higgs masses, m_H \gsim 75 GeV. In the Minimal Supersymmetric Standard Model, in contrast, it has been…

High Energy Physics - Phenomenology · Physics 2011-05-05 M. Laine , K. Rummukainen

I summarize recent results (work done in collaboration with Kimmo Kainulainen and Axel Vischer) in which we make quantitative predictions for the baryon asymmetry of the universe in the charge transport mechanism of electroweak…

High Energy Physics - Phenomenology · Physics 2007-05-23 James M. Cline

We study electroweak baryogenesis in the $SO(6)/SO(5)$ composite Higgs model with the third generation quarks being embedded in the $\textbf{20}'$ representation of $SO(6)$. The scalar sector contains one Higgs doublet and one real singlet,…

High Energy Physics - Phenomenology · Physics 2020-12-30 Ke-Pan Xie , Ligong Bian , Yongcheng Wu
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