Dark Matter in Classically Scale-Invariant Two Singlets Standard Model

Koji Ishiwata

Dark Matter in Classically Scale-Invariant Two Singlets Standard Model

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arxiv 1112.2696 v2 pith:OHWMA6DH submitted 2011-12-12 hep-ph

Koji Ishiwata This is my paper · ORCID

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keywords modeldarkhiggsmatterscalarsscalestandardinvariance

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We consider a model where two new scalars are introduced in the standard model, assuming classical scale invariance. In this model the scale invariance is broken by quantum corrections and one of the new scalars acquires non-zero vacuum expectation value (VEV), which induces the electroweak symmetry breaking in the standard model, and the other scalar becomes dark matter. It is shown that TeV scale dark matter is realized, independent of the value of the other scalar's VEV. The impact of the new scalars on the Higgs potential is also discussed. The Higgs potential is stabilized when the Higgs mass is over ~120 GeV.

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A minimal SO(5) custodial naturalness model with two scalar singlets dynamically generates the electroweak scale and supplies a freeze-in dark matter candidate.

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