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We present arguments that the CKM CP-violation in the standard model may be sufficient for the generation of the baryon asymmetry, if the electroweak transition in the early universe was of the cold, tachyonic, type after electroweak-scale…

High Energy Physics - Phenomenology · Physics 2017-08-23 Jan Smit

Using large scale real-time lattice simulations, we calculate the baryon asymmetry generated at a fast, cold electroweak symmetry breaking transition. CP-violation is provided by the leading effective bosonic term resulting from integrating…

High Energy Physics - Phenomenology · Physics 2013-05-29 Anders Tranberg

The physics of electroweak baryogenesis is described with the aim of making the essentials clear to non-experts. Several models for the source of the necessary CP violation are discussed: CKM phases as in the minimal standard model, general…

High Energy Physics - Phenomenology · Physics 2010-11-01 Glennys Farrar

We compute the baryon asymmetry created in a tachyonic electroweak symmetry breaking transition, focusing on the dependence on the source of effective CP-violation. Earlier simulations of Cold Electroweak Baryogenesis have almost…

High Energy Physics - Phenomenology · Physics 2018-07-04 Zong-Gang Mou , Paul M. Saffin , Anders Tranberg

Electroweak baryogenesis is addressed within the context of the standard model of particle physics. Although the minimal standard model has the means of fulfilling the three Sakharov's conditions, it falls short to explaining the making of…

High Energy Physics - Phenomenology · Physics 2008-02-03 Patrick Huet

Simply on CP arguments, we argue against a Standard Model explanation of baryogenesis via the charge transport mechanism. A CP-asymmetry is found in the reflection coefficients of quarks hitting the electroweak phase boundary created during…

High Energy Physics - Phenomenology · Physics 2008-02-03 M. B. Gavela , P. Hernández , J. Orloff , O. Pène

We analyze the mechanism of electroweak baryogenesis proposed by Farrar and Shaposhnikov in which the phase of the CKM mixing matrix is the only source of $CP$ violation. This mechanism is based on a phase separation of baryons via the…

High Energy Physics - Phenomenology · Physics 2010-11-01 Patrick Huet , Eric Sather

Is the Standard Model Charge-Parity (CP) violation ever enough to generate the observed baryon asymmetry? Yes! We introduce a mechanism of baryogenesis (and dark matter production) that can generate the entire observed baryon asymmetry of…

High Energy Physics - Phenomenology · Physics 2024-08-26 Gilly Elor , Rachel Houtz , Seyda Ipek , Martha Ulloa

The origin of the baryon asymmetry of the universe (BAU) is a longstanding problem in the high energy physics. The electroweak baryogenesis mechanism, which generates the BAU during the first order electroweak phase transition, provides a…

High Energy Physics - Phenomenology · Physics 2019-10-22 Wei Chao , Yandong Liu

We consider the scattering of quasi-particles off the boundary created during a first order electroweak phase transition. Spatial coherence is lost due to the quasi-quark damping rate, and we show that reflection on the boundary is…

High Energy Physics - Phenomenology · Physics 2010-11-01 M. B. Gavela , P. Hernandez , J. Orloff , O. Pène , C. Quimbay

We present real-time lattice simulations of Cold Electroweak Baryogenesis, in which the baryon asymmetry of the Universe is generated during tachyonic electroweak symmetry breaking at the end of inflation. In the minimal realisation of the…

High Energy Physics - Phenomenology · Physics 2008-11-26 Anders Tranberg , Jan Smit , Mark Hindmarsh

Contrary to popular beliefs, it is possible to explain Baryonic asymmetry of the Universe inside the Standard Model, provided inflation ended into a broken phase below the electroweak transition. Two important ingredients of the solution…

High Energy Physics - Phenomenology · Physics 2011-12-13 E. Shuryak

Simply based on CP arguments, we argue against a Standard Model explanation of the baryon asymmetry of the universe in the presence of a first order phase transition. A CP-asymmetry is found in the reflection coefficients of quarks hitting…

High Energy Physics - Phenomenology · Physics 2008-11-26 M. B. Gavela , P. Hernández , J. Orloff , O. Pène

There are many reasons to believe that there might be new sources of CP-violation beyond the phases of the KM matrix. One of these is the possibility of electroweak baryogenesis. We describe some recent developments in this subject and make…

High Energy Physics - Phenomenology · Physics 2015-06-25 Michael Dine

In this lecture first I present a brief genesis of the ideas on the electroweak baryogenesis and then I focus on a mechanism in which the source of $CP$ violation is a $CP$-violating field condensate which could occur, for example, in…

High Energy Physics - Phenomenology · Physics 2007-05-23 Tomislav Prokopec

We present a novel mechanism of electroweak baryogenesis where \textit{CP} violation occurs in a dark sector, comprised of standard model gauge singlets, thereby evading the strong electric dipole moment constraints. In this framework, the…

High Energy Physics - Phenomenology · Physics 2019-05-29 Marcela Carena , Mariano Quirós , Yue Zhang

We report a recent attempt to relate $CP$ violation in the electroweak theory with two Higgs doublets to the baryon asymmetry generated at the electroweak phase transition, after surveying the scenario of the electroweak baryogenesis.

High Energy Physics - Phenomenology · Physics 2009-10-28 Koichi Funakubo

The new source of $CP$-violation in the frames of "charge transport" mechanism of electroweak baryogenesis is investigated. The consideration is based on the assumption that $C$ and $CP$ need not be violated at the same place, and on the…

High Energy Physics - Phenomenology · Physics 2016-09-01 Andro BARNAVELI , Merab GOGBERASHVILI

We give a description of why the existence of a fourth generation is likely to provide enough CP violation for baryogenesis, and trace how this observation came about. We survey the current experimental and theoretical pursuits and outline…

High Energy Physics - Phenomenology · Physics 2011-08-05 George W. S. Hou

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
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