Electroweak baryogenesis with vector-like leptons and scalar singlets

Bell, Nicole F.; Dolan, Matthew J.; Friedrich, Leon S.; Ramsey-Musolf, Michael J.; Volkas, Raymond R.

doi:10.1007/jhep09(2019)012

Electroweak baryogenesis with vector-like leptons and scalar singlets

Journal Article · Mon Sep 02 00:00:00 EDT 2019 · Journal of High Energy Physics (Online)

DOI:https://doi.org/10.1007/jhep09(2019)012· OSTI ID:1611589

Bell, Nicole F. ^[1]; Dolan, Matthew J. ^[2]; Friedrich, Leon S. ^[2]; Ramsey-Musolf, Michael J. ^[3]; Volkas, Raymond R. ^[2]

Univ. of Melbourne (Australia); DOE/OSTI
Univ. of Melbourne (Australia)
Univ. of Massachusetts, Amherst, MA (United States); California Institute of Technology (CalTech), Pasadena, CA (United States); Shanghai Jiao Tong Univ. (China)

We investigate the viability of electroweak baryogenesis in a model with a first order electroweak phase transition induced by the addition of two gauge singlet scalars. A vector-like lepton doublet is introduced in order to provide CP violating interactions with the singlets and Standard Model leptons, and the asymmetry generation dynamics are examined using the vacuum expectation value insertion approximation. We find that such a model is readily capable of generating sufficient baryon asymmetry while satisfying electron electric dipole moment and collider phenomenology constraints.

View Accepted Manuscript (DOE)

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

Sponsoring Organization:: USDOE Office of Science (SC)

Grant/Contract Number:: SC0011095

OSTI ID:: 1611589

Journal Information:: Journal of High Energy Physics (Online), Journal Name: Journal of High Energy Physics (Online) Journal Issue: 9 Vol. 2019; ISSN 1029-8479

Publisher:: Springer BerlinCopyright Statement

Country of Publication:: United States

Language:: English

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