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Light majoron cold dark matter from topological defects and the formation of boson stars
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abstract
We show that for a relatively light majoron ($\ll 100 $ eV) non-thermal production from topological defects is an efficient production mechanism. Taking the type I seesaw as benchmark scheme, we estimate the primordial majoron abundance and determine the required parameter choices where it can account for the observed cosmological dark matter. The latter is consistent with the scale of unification. Possible direct detection of light majorons with future experiments such as PTOLEMY and the formation of boson stars from the majoron dark matter are also discussed.
Forward citations
Cited by 2 Pith papers
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About electroweak domain walls in Majoron models
Electroweak instantons alone do not produce Majoron domain walls; a tiny instanton mass from B+L breaking is cosmologically negligible and can act as a bias or dark energy.
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Electroweak Breaking and Higgs Boson Profile in the Simplest Linear Seesaw Model
In the simplest linear seesaw model, astrophysical, unitarity, and LHC constraints force a compressed scalar spectrum and permit the 125 GeV Higgs to decay invisibly into majorons with branching ratios up to about 20%.
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