Journal
PHYSICAL REVIEW D
Volume 104, Issue 5, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevD.104.055004
Keywords
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Funding
- U.S. Department of Energy [DE-SC0008541]
- Generalitat Valenciana [SEJI/2020/016]
- Universitat de Valencia
- AEI/FEDER, UE [FPA2017-85216-P]
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The singlet Majoron model incorporates a dark matter fermion and a dark matter boson, with the fermion obtaining its mass through a radiative process anchored by heavy right-handed neutrinos. The freeze-in mechanism for the fermion to be light dark matter of the Universe is provided by the one-loop decay of the standard model Higgs boson into fermions.
The singlet Majoron model of seesaw neutrino mass is appended by one dark Majorana fermion singlet chi with L = 2 and one dark complex scalar singlet zeta with L = 1. This simple setup allows chi to obtain a small radiative mass anchored by the same heavy right-handed neutrinos, whereas the one-loop decay of the standard model Higgs boson to chi chi + (chi) over bar(chi) over bar provides the freeze-in mechanism for chi to be the light dark matter of the Universe.
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