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Hidden from view: Neutrino masses, dark matter, and TeV-scale leptogenesis in a neutrinophilic two-Higgs-doublet model

Chao, Wei and Ramsey-Musolf, Michael J. (2014) Hidden from view: Neutrino masses, dark matter, and TeV-scale leptogenesis in a neutrinophilic two-Higgs-doublet model. Physical Review D, 89 (3). Art. No. 033007. ISSN 1550-7998. https://resolver.caltech.edu/CaltechAUTHORS:20140403-092055747

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Abstract

We consider a simple extension of the Standard Model providing dark matter and a TeV-scale seesaw mechanism that also allows for viable leptogenesis. In addition to the Standard Model degrees of freedom, the model contains a neutrinophilic Higgs doublet, a scalar singlet, and six singlet fermions (including three right-handed Majorana neutrinos) that are charged under a local U(1)′ gauge symmetry. We show how the U(1)′ charge assignments and the choice of scalar potential can lead to a TeV-scale seesaw mechanism and O(1) neutrino Yukawa couplings in a straightforward way. While this scenario has all the ingredients one would expect for significant experimental signatures, including several new TeV-scale degrees of freedom, we find that most distinctive features associated with neutrino mass generation, leptogenesis and the dark sector are likely to remain inaccessible in the absence of additional lepton flavor symmetries.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1103/PhysRevD.89.033007 DOIArticle
http://journals.aps.org/prd/abstract/10.1103/PhysRevD.89.033007PublisherArticle
ORCID:
AuthorORCID
Ramsey-Musolf, Michael J.0000-0001-8110-2479
Additional Information:© 2014 American Physical Society. Received 26 May 2013; revised manuscript received 22 December 2013; published 14 February 2014. We thank O. Seto for alerting us to the potential importance of the ΔL = 2 washout processes. This work was supported in part by DOE Contract No. DE-FG02-08ER41531 and the Wisconsin Alumni Research Foundation.
Funders:
Funding AgencyGrant Number
Department of Energy (DOE)DE-FG02-08ER41531
Wisconsin Alumni Research FoundationUNSPECIFIED
Issue or Number:3
Classification Code:PACS: 14.60.Pq, 14.60.St, 95.35.+d
Record Number:CaltechAUTHORS:20140403-092055747
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20140403-092055747
Official Citation:Chao, W., & Ramsey-Musolf, M. J. (2014). Hidden from view: Neutrino masses, dark matter, and TeV-scale leptogenesis in a neutrinophilic two-Higgs-doublet model. Physical Review D, 89(3), 033007.
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:44626
Collection:CaltechAUTHORS
Deposited By: Jason Perez
Deposited On:03 Apr 2014 16:57
Last Modified:03 Oct 2019 06:20

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