Probing the Electroweak Phase Transition with Higgs Factories and Gravitational Waves

By Peisi Huang, A. J. Long, Lian-tao Wang. 2016

137 citations recorded by the source corpus.

After the discovery of the Higgs boson, understanding the nature of electroweak symmetry breaking and the associated electroweak phase transition has become the most pressing question in particle physics. Answering this question is a priority for experimental studies. Data from the LHC and future lepton collider-based Higgs factories may uncover new physics coupled to the Higgs boson, which can induce the electroweak phase transition to become first order. Such a phase transition generates a stochastic background of gravitational waves, which could potentially be detected by a space-based gravitational wave interferometer. In this paper, we survey a few classes of models in which the electroweak phase transition is strongly first order. We identify the observables that would provide evidence of these models at the LHC and next-generation lepton colliders, and we assess whether the corresponding gravitational wave signal could be detected by eLISA. We find that most of the models with first-order electroweak phase transition can be covered by the precise measurements of Higgs couplings at the proposed Higgs factories. We also map out the model space that can be probed with gravitational wave detection by eLISA.

Subfields: Artificial Intelligence, Astronomy and Astrophysics, Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/dbfb4a021b880cd53595dae4b441229424be9fa1

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5. T. You
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In Astronomy and Astrophysics

1. John Ellis
2. T. Konstandin
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8. Christophe Grojean

In Nuclear and High Energy Physics

1. Cms Collaboration
2. Atlas Collaboration
3. Gudrun Heinrich
4. Fabio Maltoni
5. Valentin Hirschi
6. R. Frederix
7. M. Zaro
8. Ansgar Denner

Citations in the corpus

• On the maximal strength of a first-order electroweak phase transition and its gravitational wave signal (2018, methodology): “the SM prediction induced by the coupling λhs [20, 112]”
• Model-independent energy budget of cosmological first-order phase transitions—A sound argument to go beyond the bag model (2020, background): “The main collider signatures in such scenarios are direct production of the new particle, and deviations from the SM triple Higgs and Z-Higgs interactions, but testing this scenario requires a 100 TeV hadron collider or a next-generation lepton collider [9–11].”
• Detecting gravitational waves from cosmological phase transitions with LISA: an update (2019, unknown): “[84]).”
• Higgs Physics at the HL-LHC and HE-LHC (2019, background): “Perhaps, the simplest illustration of this potential is the extension of the SM scalar sector with a single real singlet scalar [395, 396, 397, 398, 399, 400, 401, 402, 403, 404, 405, 333, 406], the “xSM” [407] (for analogous studies with a complex singlet, see [408, 409]).”
• 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.”