Content area
Abstract
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 [eta] I exists. It may then act as a light mediator for a real singlet scalar [chi] 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 [chi] off nuclei in dark-matter direct-search experiments.
Details
Title
Pseudo-majoron as light mediator of singlet scalar dark matter
Author
Ma, Ernest 1 ; Maniatis, Markos 2
1 Department of Physics and Astronomy, University of California, Riverside, California, U.S.A.
2 Departamento de Ciencias Basicas, Universidad del Biobio, Chillan, Chile
1 Department of Physics and Astronomy, University of California, Riverside, California, U.S.A.
2 Departamento de Ciencias Basicas, Universidad del Biobio, Chillan, Chile
Pages
1-10
Publication year
2017
Publication date
Jul 2017
e-ISSN
10298479
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
1924315121
Copyright
Journal of High Energy Physics is a copyright of Springer, 2017.