Vacuum stability, perturbativity, and scalar singlet dark matter

Gonderinger, Matthew; Li, Yingchuan; Patel, Hiren H.; Ramsey-Musolf, Michael J.

doi:10.1007/jhep01(2010)053

Cited by 222 publications

(210 citation statements)

References 41 publications

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“…[42][43][44]. Given these considerations, our results are most reliable in the purple regions, where the perturbative expansion is clearly under control.…”

Section: Jhep08(2017)096mentioning

confidence: 52%

Non-resonant collider signatures of a singlet-driven electroweak phase transition

Chen

Kozaczuk

Lewis

2017

J. High Energ. Phys.

107

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Abstract:We analyze the collider signatures of the real singlet extension of the Standard Model in regions consistent with a strong first-order electroweak phase transition and a singlet-like scalar heavier than the Standard Model-like Higgs. A definitive correlation exists between the strength of the phase transition and the trilinear coupling of the Higgs to two singlet-like scalars, and hence between the phase transition and non-resonant scalar pair production involving the singlet at colliders. We study the prospects for observing these processes at the LHC and a future 100 TeV pp collider, focusing particularly on double singlet production. We also discuss correlations between the strength of the electroweak phase transition and other observables at hadron and future lepton colliders. Searches for non-resonant singlet-like scalar pair production at 100 TeV would provide a sensitive probe of the electroweak phase transition in this model, complementing resonant di-Higgs searches and precision measurements. Our study illustrates a strategy for systematically exploring the phenomenologically viable parameter space of this model, which we hope will be useful for future work.

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“…[42][43][44]. Given these considerations, our results are most reliable in the purple regions, where the perturbative expansion is clearly under control.…”

Section: Jhep08(2017)096mentioning

confidence: 52%

Non-resonant collider signatures of a singlet-driven electroweak phase transition

Chen

Kozaczuk

Lewis

2017

J. High Energ. Phys.

107

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“…Investigations of this type have been performed in extended Higgs sectors prior to the discovery of the Higgs boson in Refs. [22][23][24][25][26][27][28]. With the discovery and identification of a SM-like Higgs boson, the question of the validity of extended Higgs sectors up to the Planck scale has become more focused.…”

Section: Introductionmentioning

confidence: 99%

Preserving the validity of the two-Higgs-doublet model up to the Planck scale

2015

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We examine the constraints on the two Higgs doublet model (2HDM) due to the stability of the scalar potential and absence of Landau poles at energy scales below the Planck scale. We employ the most general 2HDM that incorporates an approximately Standard Model (SM) Higgs boson with a flavor aligned Yukawa sector to eliminate potential tree-level Higgs-mediated flavor changing neutral currents. Using basis independent techniques, we exhibit regimes of the 2HDM parameter space with a 125 GeV SM-like Higgs boson that is stable and perturbative up to the Planck scale. Implications for the heavy scalar spectrum are exhibited.

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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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Vacuum stability, perturbativity, and scalar singlet dark matter

Cited by 222 publications

References 41 publications

Non-resonant collider signatures of a singlet-driven electroweak phase transition

Non-resonant collider signatures of a singlet-driven electroweak phase transition

Preserving the validity of the two-Higgs-doublet model up to the Planck scale

The Higgs mass and the scale of new physics

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