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Related papers: Electroweak Baryogenesis in a Two-Higgs Doublet Mo…

200 papers

Singlet extensions of the Standard Model (SM) allow for a strongly first order electroweak phase transition, because of trilinear terms in the tree-level potential. We present a systematic procedure to study the parameter space of the…

High Energy Physics - Phenomenology · Physics 2007-05-23 S. J. Huber

We address the possibility that CP-violation in $B_s-\bar B_s$ mixing may help explain the origin of the cosmic baryon asymmetry. We propose a new baryogenesis mechanism - "Electroweak Beautygenesis" - explicitly showing that these two…

High Energy Physics - Phenomenology · Physics 2015-05-30 Tao Liu , Michael J. Ramsey-Musolf , Jing Shu

We construct an anomaly free supersymmetric U(1)' model with a secluded U(1)'-breaking sector. We study the one-loop effective potential at finite temperature, and show that there exists a strong enough first order electroweak phase…

High Energy Physics - Phenomenology · Physics 2016-09-06 Junhai Kang , Paul Langacker , Tianjun Li , Tao Liu

The generation of the observed baryon asymmetry may have taken place during the electroweak phase transition, thus involving physics testable at LHC, a scenario dubbed electroweak baryogenesis. In this paper we point out that the magnetic…

High Energy Physics - Phenomenology · Physics 2011-10-24 Andrea De Simone , Germano Nardini , Mariano Quiros , Antonio Riotto

We investigate the feasibility of electroweak baryogenesis in a two-Higgs doublet model with lepton flavor violation. By scrutinizing the heavy Higgs boson mass spectrum, regions satisfying both strong first-order electroweak phase…

High Energy Physics - Phenomenology · Physics 2016-10-05 Cheng-Wei Chiang , Kaori Fuyuto , Eibun Senaha

We study a model with an exotic new sector strongly coupled to the Higgs boson, in which supersymmetry is introduced to protect the quartic coupling from a large running and avoid potential vacuum stability problem. The fermionic components…

High Energy Physics - Phenomenology · Physics 2013-05-10 Ran Huo

With the assistance of a complex singlet, and an effective operator involving CP violations, the dark matter relic abundance and baryon asymmetry of the universe have been addressed simul- taneously. We studied the electroweak baryogenesis…

High Energy Physics - Phenomenology · Physics 2016-03-23 Minyuan Jiang , Ligong Bian , Weicong Huang , Jing Shu

We review the baryogenesis scenario in the MSSM at the perturbative level and, in particular, the impact of two-loop corrections on the strength of the phase transition and the amount of generated baryon asymmetry. We confirm the…

High Energy Physics - Phenomenology · Physics 2009-10-31 M. Quiros , M. Seco

The rich vacuum structure of multi-Higgs extensions of the Standard Model (SM) may have interesting cosmological implications for the electroweak phase transition (EWPT). As an important example of such class of models, we consider a…

High Energy Physics - Phenomenology · Physics 2018-07-18 Thibault Vieu , António P. Morais , Roman Pasechnik

Electroweak baryogenesis can occur in the ``adiabatic limit,'' in which expanding bubbles of true vacuum are assumed to have rather thick walls and be slowly moving. Here the problem of calculating the baryon asymmetry in this limit is…

High Energy Physics - Phenomenology · Physics 2009-10-28 Michael Dine , Scott Thomas

We calculate the baryon asymmetry of the Universe in the Z3-invariant Next-to-Minimal Supersymmetric Standard Model where the interactions of the singlino provide the necessary source of charge and parity violation. Using the closed time…

High Energy Physics - Phenomenology · Physics 2017-12-06 Sujeet Akula , Csaba Balázs , Liam Dunn , Graham White

We revisit a model of electroweak baryogenesis that includes a dark matter candidate, and sequesters the new CP violation required to produce the baryon asymmetry in a dark sector. The model can explain the baryon asymmetry, dark matter…

High Energy Physics - Phenomenology · Physics 2025-09-04 Jean-Samuel Roux , James M. Cline

Recently we presented the upgrade of our code BSMPT for the calculation of the electroweak phase transition (EWPT) to BSMPT v2 which now includes the computation of the baryon asymmetry of the universe (BAU) in the CP-violating…

High Energy Physics - Phenomenology · Physics 2021-08-10 Philipp Basler , Margarete Mühlleitner , Jonas Müller

We study the interactions of quarks and antiquarks with the changing Higgs field during the electroweak phase transition, including quantum mechanical and some thermal effects, with the only source of CP violation being the known CKM phase.…

High Energy Physics - Phenomenology · Physics 2010-11-01 Glennys R. Farrar , M. E. Shaposhnikov

Baryon asymmetry of the Universe is evaluated in the model originally proposed in Phys. Rev. Lett. 102 (2009) 051805, where Majorana masses of neutrinos are generated via three-loop diagrams composed of additional scalar bosons including…

High Energy Physics - Phenomenology · Physics 2023-06-19 Mayumi Aoki , Kazuki Enomoto , Shinya Kanemura

Pedagogical lectures on baryogenesis, with emphasis on the electroweak phase transition and electroweak baryogenesis. Contents: (1) Observational evidence for the BAU; (2) Sakharov's conditions for baryogenesis; (3) Example: GUT…

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

Recent progress in the theory of the electroweak phase transition is discussed. For the Higgs boson mass smaller than the masses of W and Z bosons, the phase transition is of the first order. However, its strength is approximately 2/3 times…

High Energy Physics - Phenomenology · Physics 2007-05-23 Andrei Linde

Electroweak baryogenesis (EWB) and electric dipole moment (EDM) have close relation with the new physics beyond the standard model (SM), because the SM CP-violating (CPV) interactions are not sufficient to provide the baryon asymmetry of…

High Energy Physics - Phenomenology · Physics 2020-03-23 Jin-Lei Yang , Tai-Fu Feng , Hai-Bin Zhang

SUSY models with a gauge singlet easily allow for a strong first order electroweak phase transition (EWPT) if the vevs of the singlet and Higgs fields are of comparable size. We discuss the profile of the stationary expanding bubble wall…

High Energy Physics - Phenomenology · Physics 2011-05-12 Stephan J. Huber , Michael G. Schmidt

We propose a variant of electroweak-scale baryogenesis characterized by the spontaneous breaking of the charge-parity (CP) symmetry in the early Universe driven by the vacuum expectation value of a CP-odd scalar. This CP breaking period in…

High Energy Physics - Phenomenology · Physics 2023-05-10 S. J. Huber , K. Mimasu , J. M. No