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Related Experiment Video

Updated: Feb 15, 2026

Quantification of Proliferative and Dead Cells in Enteroids
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Is electroweak baryogenesis dead?

James M Cline1,2

  • 1CERN, Theoretical Physics Department, Geneva, Switzerland jcline@physics.mcgill.ca.

Philosophical Transactions. Series A, Mathematical, Physical, and Engineering Sciences
|January 24, 2018
PubMed
Summary
This summary is machine-generated.

This study presents a novel model for electroweak baryogenesis, overcoming limitations of previous theories. It introduces a new source of CP violation, enabling successful baryogenesis without fine-tuning, with dark matter playing a key role.

Keywords:
dark matterelectroweak baryogenesiselectroweak phase transition

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Area of Science:

  • Particle Physics
  • Cosmology
  • High-Energy Physics

Background:

  • Traditional electroweak baryogenesis models face challenges like fine-tuning and Landau poles.
  • Existing models with singlet scalars improve phase transitions but lack UV completeness for baryogenesis.
  • No UV complete models have successfully demonstrated baryogenesis in these settings.

Purpose of the Study:

  • To propose a new model for electroweak baryogenesis that avoids fine-tuning.
  • To demonstrate a UV complete model consistent to scales above 1 TeV.
  • To introduce a novel source of CP violation within a singlet scalar coupling to the Higgs.

Main Methods:

  • Introducing a new source of particle-antiparticle (CP) violation in singlet field couplings.
  • Developing a model where dark matter is central to generating CP asymmetry.
  • Ensuring the model's consistency to scales significantly above 1 TeV.

Main Results:

  • A new model of electroweak baryogenesis is demonstrated.
  • The model requires no fine-tuning of parameters.
  • It is consistent with physics up to scales well above 1 TeV.
  • Dark matter is shown to be the primary driver of CP asymmetry, leading to baryon asymmetry.

Conclusions:

  • The proposed model offers a viable solution to challenges in electroweak baryogenesis.
  • It provides a UV complete framework for generating the baryon asymmetry.
  • Dark matter's role in CP violation offers new avenues for theoretical exploration.