Singlet-catalyzed electroweak phase transitions and precision Higgs boson studies

By S. Profumo, M. Ramsey-Musolf, Carroll L. Wainwright, Peter T. Winslow. 2014

216 citations recorded by the source corpus.

We update the phenomenology of gauge-singlet extensions of the Standard Model scalar sector and their implications for the electroweak phase transition. Considering the introduction of one real scalar singlet to the scalar potential, we analyze present constraints on the potential parameters from Higgs coupling measurements at the Large Hadron Collider (LHC) and electroweak precision observables for the kinematic regime in which no new scalar decay modes arise. We then show how future precision measurements of Higgs boson signal strengths and the Higgs self-coupling could probe the scalar potential parameter space associated with a strong first-order electroweak phase transition. We illustrate using benchmark precision for several future collider options, including the high-luminosity LHC, the International Linear Collider, Triple-Large Electron-Positron collider, the China Electron-Positron Collider, and a 100 TeV proton-proton collider, such as the Very High Energy LHC or the Super Proton-Proton Collider. For the regions of parameter space leading to a strong first-order electroweak phase transition, we find that there exists considerable potential for observable deviations from purely Standard Model Higgs properties at these prospective future colliders.

Subfields: Astronomy and Astrophysics, Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/c7c9d53d707495d93d2f12a738b77a993628b16e

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In Astronomy and Astrophysics

1. J. No
2. T. Konstandin
3. C. Caprini
4. M. Hindmarsh
5. G. White
6. Marek Lewicki
7. G. Servant
8. S. Huber

In Nuclear and High Energy Physics

1. T. Konstandin
2. J. No
3. C. Caprini
4. Igor P. Ivanov
5. S. Huber
6. M. Hindmarsh
7. G. Servant
8. G. Nardini

Citations in the corpus

• Science with the space-based interferometer eLISA. II: gravitational waves from cosmological phase transitions (2015, background): “Such models are attractive from the standpoint of dark matter [60], baryogenesis [61], and solutions to the hierarchy problem without colored top partners [62].”
• Detecting gravitational waves from cosmological phase transitions with LISA: an update (2019, background): “LHC measurements indicate that the observed 125 GeV Higgs field is quite SM-like, and currently the mixing angle is constrained to satisfy [74–76] |sin θ| .”
• Building and testing models with extended Higgs sectors (2017, background): “[474, 475, 476, 477, 478, 479, 480, 481, 359] for recent in-depth studies which combine the requirement of the strong EWPT with the collider results.”
• Theoretical uncertainties for cosmological first-order phase transitions (2020, background): “Although state of the art calculations of the Standard Model (SM) indicate a crossover transition [9–13], it is straightforward to extend it by new scalar fields [14–24] or effective operators [25–27] to catalyse a strong firstorder electroweak phase transition (EWPT).”