Inflationary imprints on dark matter
We show that dark matter abundance and the inflationary scale H could be intimately related. Standard Model extensions with Higgs mediated couplings to new physics typically contain extra scalars displaced from vacuum during inflation. If their coupling to Standard Model is weak, they will not therm...
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| Veröffentlicht in: | Journal of cosmology and astroparticle physics 2015-11, Vol.2015 (11), p.1-1 |
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| container_title | Journal of cosmology and astroparticle physics |
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| creator | Nurmi, Sami Tenkanen, Tommi Tuominen, Kimmo |
| description | We show that dark matter abundance and the inflationary scale H could be intimately related. Standard Model extensions with Higgs mediated couplings to new physics typically contain extra scalars displaced from vacuum during inflation. If their coupling to Standard Model is weak, they will not thermalize and may easily constitute too much dark matter reminiscent to the moduli problem. As an example we consider Standard Model extended by a Z{sub 2} symmetric singlet s coupled to the Standard Model Higgs Φ via λ Φ{sup †}Φ s{sup 2}. Dark matter relic density is generated non-thermally for λ ∼ 10{sup −9} and m{sub s}∼ |
| doi_str_mv | 10.1088/1475-7516/2015/11/001 |
| format | Article |
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Standard Model extensions with Higgs mediated couplings to new physics typically contain extra scalars displaced from vacuum during inflation. If their coupling to Standard Model is weak, they will not thermalize and may easily constitute too much dark matter reminiscent to the moduli problem. As an example we consider Standard Model extended by a Z{sub 2} symmetric singlet s coupled to the Standard Model Higgs Φ via λ Φ{sup †}Φ s{sup 2}. Dark matter relic density is generated non-thermally for λ ∼< 10{sup −7}. We show that the dark matter yield crucially depends on the inflationary scale. For H∼ 10{sup 10} GeV we find that the singlet self-coupling and mass should lie in the regime λ{sub s}∼> 10{sup −9} and m{sub s}∼< 50 GeV to avoid dark matter overproduction.</description><identifier>ISSN: 1475-7516</identifier><identifier>EISSN: 1475-7516</identifier><identifier>DOI: 10.1088/1475-7516/2015/11/001</identifier><language>eng</language><publisher>United States</publisher><subject>ASTROPHYSICS, COSMOLOGY AND ASTRONOMY ; COSMOLOGICAL INFLATION ; DENSITY ; GEV RANGE ; HIGGS BOSONS ; HIGGS MODEL ; INFLATIONARY UNIVERSE ; MASS ; NONLUMINOUS MATTER ; SCALARS ; STANDARD MODEL ; SYMMETRY</subject><ispartof>Journal of cosmology and astroparticle physics, 2015-11, Vol.2015 (11), p.1-1</ispartof><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c328t-7a489e77b8358e3fe9f6760490414ee17a6694652c525d2fac7fbc68523c46ba3</citedby><cites>FETCH-LOGICAL-c328t-7a489e77b8358e3fe9f6760490414ee17a6694652c525d2fac7fbc68523c46ba3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>230,314,780,784,885,27923,27924</link.rule.ids><backlink>$$Uhttps://www.osti.gov/biblio/22525201$$D View this record in Osti.gov$$Hfree_for_read</backlink></links><search><creatorcontrib>Nurmi, Sami</creatorcontrib><creatorcontrib>Tenkanen, Tommi</creatorcontrib><creatorcontrib>Tuominen, Kimmo</creatorcontrib><title>Inflationary imprints on dark matter</title><title>Journal of cosmology and astroparticle physics</title><description>We show that dark matter abundance and the inflationary scale H could be intimately related. Standard Model extensions with Higgs mediated couplings to new physics typically contain extra scalars displaced from vacuum during inflation. If their coupling to Standard Model is weak, they will not thermalize and may easily constitute too much dark matter reminiscent to the moduli problem. As an example we consider Standard Model extended by a Z{sub 2} symmetric singlet s coupled to the Standard Model Higgs Φ via λ Φ{sup †}Φ s{sup 2}. Dark matter relic density is generated non-thermally for λ ∼< 10{sup −7}. We show that the dark matter yield crucially depends on the inflationary scale. 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| ispartof | Journal of cosmology and astroparticle physics, 2015-11, Vol.2015 (11), p.1-1 |
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| language | eng |
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| source | IOP Publishing Journals; Institute of Physics (IOP) Journals - HEAL-Link |
| subjects | ASTROPHYSICS, COSMOLOGY AND ASTRONOMY COSMOLOGICAL INFLATION DENSITY GEV RANGE HIGGS BOSONS HIGGS MODEL INFLATIONARY UNIVERSE MASS NONLUMINOUS MATTER SCALARS STANDARD MODEL SYMMETRY |
| title | Inflationary imprints on dark matter |
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