Self-interacting dark matter and the Higgs boson

Bento, M. C.; Bertolami, Orfeu; Rosenfeld, R.; Teodoro, L. F. A.

doi:10.1103/physrevd.62.041302

Cited by 181 publications

(165 citation statements)

References 34 publications

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“…While the cold dark matter (CDM) models supplemented by a cosmological constant are in a good agrement with the observed structure of the Universe on large scales, the cosmic microwave background anisotropies and type Ia supernovae observations for a given set of density parameters, there exists a growing wealth of observational data which are in conflict with the CDM scenarios [6]. To remedy the difficulties of the CDM models on galactic scales, a self-interacting dark matter candidate has been proposed [7,8,9], and it has been discussed that a gauge singlet scalar coupled to the Higgs boson, leading to an invisible decaying Higgs, is a good candidate for the self-interacting dark matter [10,11,12].…”

Section: Introductionmentioning

confidence: 99%

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Low scale leptogenesis and dark matter candidates in an extended seesaw model

Cheon

Kang

Kim

2008

J. Cosmol. Astropart. Phys.

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We consider a variant of seesaw mechanism by introducing extra singlet neutrinos and singlet scalar boson, and show how low scale leptogenesis is successfully realized in this scenario. We examine if the newly introduced neutral particles, either singlet Majorana neutrino or singlet scalar boson, can be a candidate for dark matter. We also discuss the implications of the dark matter detection through the scattering off the nucleus of the detecting material on our scenarios for dark matter.In addition, we study the implications for the search of invisible Higgs decay at LHC, which may serve as a probe of our scenario for dark matter.

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Section: Introductionmentioning

confidence: 99%

“…[8], it has been proposed that a stable, strongly self-coupled scalar field can solve the problems of cold dark matter models for structure formation in the Universe, concerning galactic scales. Thus, the singlet scalar boson in our model can serve as a self-interacting scalar dark matter candidate.…”

Section: Amentioning

confidence: 99%

Low scale leptogenesis and dark matter candidates in an extended seesaw model

Cheon

Kang

Kim

2008

J. Cosmol. Astropart. Phys.

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“…Using similar methods as Refs. ( [49,50]) we obtain the following constraint on the DM mass and quartic coupling g DM…”

Section: B Astrophysical Constraintsmentioning

confidence: 99%

Complex singlet extension of the standard model

et al. 2009

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We analyze a simple extension of the Standard Model (SM) obtained by adding a complex singlet to the scalar sector (cxSM). We show that the cxSM can contain one or two viable cold dark matter candidates and analyze the conditions on the parameters of the scalar potential that yield the observed relic density. When the cxSM potential contains a global U (1) symmetry that is both softly and spontaneously broken, it contains both a viable dark matter candidate and the ingredients necessary for a strong first order electroweak phase transition as needed for electroweak baryogenesis. We also study the implications of the model for discovery of a Higgs boson at the Large Hadron Collider.

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“…In our simple model we couple the additional scalar to the Standard Model through a Higgs portal [72][73][74][75][76][77][78][79][80][81][82][83][84][85][86][87][88][89][90][91] added to the effective potential of eq. (2.6),…”

Section: Jhep04(2015)022mentioning

confidence: 99%

The Higgs mass and the scale of new physics

Eichhorn

Gies

Jaeckel

et al. 2015

J. High Energ. Phys.

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In view of the measured Higgs mass of 125 GeV, the perturbative renormalization group evolution of the Standard Model suggests that our Higgs vacuum might not be stable. We connect the usual perturbative approach and the functional renormalization group which allows for a straightforward inclusion of higher-dimensional operators in the presence of an ultraviolet cutoff. In the latter framework we study vacuum stability in the presence of higher-dimensional operators. We find that their presence can have a sizable influence on the maximum ultraviolet scale of the Standard Model and the existence of instabilities. Finally, we discuss how such operators can be generated in specific models and study the relation between the instability scale of the potential and the scale of new physics required to avoid instabilities.

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Self-interacting dark matter and the Higgs boson

Cited by 181 publications

References 34 publications

Low scale leptogenesis and dark matter candidates in an extended seesaw model

Low scale leptogenesis and dark matter candidates in an extended seesaw model

Complex singlet extension of the standard model

The Higgs mass and the scale of new physics

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