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Title: Electroweak baryogenesis, electric dipole moments, and Higgs diphoton decays

Here, we study the viability of electroweak baryogenesis in a two Higgs doublet model scenario augmented by vector-like, electroweakly interacting fermions. Considering a limited, but illustrative region of the model parameter space, we obtain the observed cosmic baryon asymmetry while satisfying present constraints from the non-observation of the permanent electric dipole moment (EDM) of the electron and the combined ATLAS and CMS result for the Higgs boson diphoton decay rate. The observation of a non-zero electron EDM in a next generation experiment and/or the observation of an excess (over the Standard Model) of Higgs to diphoton events with the 14 TeV LHC run or a future e +e collider would be consistent with generation of the observed baryon asymmetry in this scenario.
Authors:
 [1] ;  [2]
  1. Univ. of Massachusetts, Amherst, MA (United States). Dept. of Chemistry, Amherst Center for Fundamental Interactions
  2. Univ. of Massachusetts, Amherst, MA (United States). Dept. of Chemistry, Amherst Center for Fundamental Interactions; California Inst. of Technology (CalTech), Pasadena, CA (United States)
Publication Date:
Grant/Contract Number:
SC0011095
Type:
Accepted Manuscript
Journal Name:
Journal of High Energy Physics (Online)
Additional Journal Information:
Journal Name: Journal of High Energy Physics (Online); Journal Volume: 2014; Journal Issue: 10; Journal ID: ISSN 1029-8479
Publisher:
Springer Berlin
Research Org:
Univ. of Massachusetts, Amherst, MA (United States)
Sponsoring Org:
USDOE Office of Science (SC)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; Higgs Physics; Beyond Standard Model; CP violation
OSTI Identifier:
1455238

Chao, Wei, and Ramsey-Musolf, Michael J. Electroweak baryogenesis, electric dipole moments, and Higgs diphoton decays. United States: N. p., Web. doi:10.1007/JHEP10(2014)180.
Chao, Wei, & Ramsey-Musolf, Michael J. Electroweak baryogenesis, electric dipole moments, and Higgs diphoton decays. United States. doi:10.1007/JHEP10(2014)180.
Chao, Wei, and Ramsey-Musolf, Michael J. 2014. "Electroweak baryogenesis, electric dipole moments, and Higgs diphoton decays". United States. doi:10.1007/JHEP10(2014)180. https://www.osti.gov/servlets/purl/1455238.
@article{osti_1455238,
title = {Electroweak baryogenesis, electric dipole moments, and Higgs diphoton decays},
author = {Chao, Wei and Ramsey-Musolf, Michael J.},
abstractNote = {Here, we study the viability of electroweak baryogenesis in a two Higgs doublet model scenario augmented by vector-like, electroweakly interacting fermions. Considering a limited, but illustrative region of the model parameter space, we obtain the observed cosmic baryon asymmetry while satisfying present constraints from the non-observation of the permanent electric dipole moment (EDM) of the electron and the combined ATLAS and CMS result for the Higgs boson diphoton decay rate. The observation of a non-zero electron EDM in a next generation experiment and/or the observation of an excess (over the Standard Model) of Higgs to diphoton events with the 14 TeV LHC run or a future e+e– collider would be consistent with generation of the observed baryon asymmetry in this scenario.},
doi = {10.1007/JHEP10(2014)180},
journal = {Journal of High Energy Physics (Online)},
number = 10,
volume = 2014,
place = {United States},
year = {2014},
month = {10}
}