Pseudo-majoron as light mediator of singlet scalar dark matter
Abstract
In the singlet-triplet majoron model of neutrino mass, lepton number is spontaneously broken. If it is also softly broken, then a naturally light pseudoscalar particle ηI exists. It may then act as a light mediator for a real singlet scalar χ with odd dark parity. It is itself unstable, but decays dominantly to two neutrinos through its triplet scalar component, thereby not disturbing the cosmic microwave background (CMB). It also mixes with the standard-model Higgs boson only in one loop, thereby not contributing significantly to the elastic scattering of χ off nuclei in dark-matter direct-search experiments.
- Authors:
-
- Univ. of California, Riverside, CA (United States)
- Univ. del Biobio, Chilan (Chile)
- Publication Date:
- Research Org.:
- Univ. of California, Riverside, CA (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC)
- OSTI Identifier:
- 1423777
- Grant/Contract Number:
- SC0008541
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Journal of High Energy Physics (Online)
- Additional Journal Information:
- Journal Name: Journal of High Energy Physics (Online); Journal Volume: 2017; Journal Issue: 7; Journal ID: ISSN 1029-8479
- Publisher:
- Springer Berlin
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS
Citation Formats
Ma, Ernest, and Maniatis, Markos. Pseudo-majoron as light mediator of singlet scalar dark matter. United States: N. p., 2017.
Web. doi:10.1007/JHEP07(2017)140.
Ma, Ernest, & Maniatis, Markos. Pseudo-majoron as light mediator of singlet scalar dark matter. United States. https://doi.org/10.1007/JHEP07(2017)140
Ma, Ernest, and Maniatis, Markos. Fri .
"Pseudo-majoron as light mediator of singlet scalar dark matter". United States. https://doi.org/10.1007/JHEP07(2017)140. https://www.osti.gov/servlets/purl/1423777.
@article{osti_1423777,
title = {Pseudo-majoron as light mediator of singlet scalar dark matter},
author = {Ma, Ernest and Maniatis, Markos},
abstractNote = {In the singlet-triplet majoron model of neutrino mass, lepton number is spontaneously broken. If it is also softly broken, then a naturally light pseudoscalar particle ηI exists. It may then act as a light mediator for a real singlet scalar χ with odd dark parity. It is itself unstable, but decays dominantly to two neutrinos through its triplet scalar component, thereby not disturbing the cosmic microwave background (CMB). It also mixes with the standard-model Higgs boson only in one loop, thereby not contributing significantly to the elastic scattering of χ off nuclei in dark-matter direct-search experiments.},
doi = {10.1007/JHEP07(2017)140},
journal = {Journal of High Energy Physics (Online)},
number = 7,
volume = 2017,
place = {United States},
year = {Fri Jul 28 00:00:00 EDT 2017},
month = {Fri Jul 28 00:00:00 EDT 2017}
}
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