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Electroweak baryogenesis with vector-like leptons and scalar singlets

Bell, Nicole F. and Dolan, Matthew J. and Friedrich, Leon S. and Ramsey-Musolf, Michael J. and Volkas, Raymond R. (2019) Electroweak baryogenesis with vector-like leptons and scalar singlets. Journal of High Energy Physics, 2019 (9). Art. No. 12. ISSN 1029-8479. doi:10.1007/jhep09(2019)012.

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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.

Item Type:Article
Related URLs:
URLURL TypeDescription Paper
Bell, Nicole F.0000-0002-5805-9828
Dolan, Matthew J.0000-0003-3420-8718
Ramsey-Musolf, Michael J.0000-0001-8110-2479
Volkas, Raymond R.0000-0002-4254-8520
Additional Information:© 2019 The Authors. This article is distributed under the terms of the Creative Commons Attribution License (CC-BY 4.0), which permits any use, distribution and reproduction in any medium, provided the original author(s) and source are credited. Article funded by SCOAP3. We thank Phillip Basler, Christopher Lee, David Morrisey, Hiren Patel and Gaham White for helpful discussions. Feynman diagrams were drawn using the TikZ-Feynman package [88]. This work was supported by the Australian Research Council. Michael J. Ramsey-Musolf was supported in part under U.S. Department of Energy Contract DE-SC0011095.
Funding AgencyGrant Number
Australian Research CouncilUNSPECIFIED
Department of Energy (DOE)DE-SC0011095
Subject Keywords:Beyond Standard Model, Cosmology of Theories beyond the SM
Issue or Number:9
Record Number:CaltechAUTHORS:20190909-093503441
Persistent URL:
Official Citation:Bell, N.F., Dolan, M.J., Friedrich, L.S. et al. J. High Energ. Phys. (2019) 2019: 12.
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:98512
Deposited By: George Porter
Deposited On:09 Sep 2019 18:01
Last Modified:16 Nov 2021 17:39

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