Electroweak baryogenesis, electric dipole moments, and Higgs diphoton decays

Chao, Wei; Ramsey-Musolf, Michael J.

doi:10.1007/JHEP10(2014)180

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

Journal Article · Thu Oct 30 00:00:00 EDT 2014 · Journal of High Energy Physics (Online)

DOI:https://doi.org/10.1007/JHEP10(2014)180· OSTI ID:1455238

Chao, Wei ^[1]; Ramsey-Musolf, Michael J. ^[2]

Univ. of Massachusetts, Amherst, MA (United States). Dept. of Chemistry, Amherst Center for Fundamental Interactions
Univ. of Massachusetts, Amherst, MA (United States). Dept. of Chemistry, Amherst Center for Fundamental Interactions; California Inst. of Technology (CalTech), Pasadena, CA (United States)

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.

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Research Organization:: Univ. of Massachusetts, Amherst, MA (United States)

Sponsoring Organization:: USDOE Office of Science (SC)

Grant/Contract Number:: SC0011095

OSTI ID:: 1455238

Journal Information:: Journal of High Energy Physics (Online), Vol. 2014, Issue 10; ISSN 1029-8479

Publisher:: Springer BerlinCopyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 15 works

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