Electroweak baryogenesis and gravitational waves from a real scalar singlet

By V. Vaskonen. 2016

202 citations recorded by the source corpus.

We consider a real scalar singlet field which provides a strong first order electroweak phase transition via its coupling to the Higgs boson, and gives a CP violating contribution on the top quark mass via a dimension 6 operator. We study the correlation between the baryon-to-entropy ratio produced by electroweak baryogenesis, and the gravitational wave signal from the electroweak phase transition. We show that the future gravitational wave experiments can test in particular the region of the model parameter space where the observed baryon-to-entropy ratio can be obtained even if the new physics scale, which is explicit in the dimension 6 operator, is high.

Subfields: Astronomy and Astrophysics, Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/0f251380f47fb2b9cb53eb4787fbaa30514622c1

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Astronomy and Astrophysics

1. Marek Lewicki
2. John Ellis
3. J. No
4. V. Vaskonen
5. G. White
6. Kanu Sinha
7. Daniel Vagie
8. Huai-Ke Guo

In Nuclear and High Energy Physics

1. Marek Lewicki
2. John Ellis
3. J. No
4. V. Vaskonen
5. G. White
6. Kanu Sinha
7. O. Gould
8. T. Tenkanen

Citations in the corpus

• Phase transitions in an expanding universe: stochastic gravitational waves in standard and non-standard histories (2020, background): “They will come online within the next decade or so and can probe lower frequencies coming from an electroweak scale phase transition [13–28].”
• 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).”
• Gravitational wave energy budget in strongly supercooled phase transitions (2019, background): “However, more recently such scenarios have enjoyed renewed attention due to the observational prospects associated with a gravitational wave (GW) background that such a transition could produce [5–44] 1.”
• Updated predictions for gravitational waves produced in a strongly supercooled phase transition (2020, background): “However, the direct detection of gravitational waves (GWs) by the LIGO and Virgo Collaborations [5] has recently stimulated widespread interest in the potential observability of GWs [6] produced in such a transition [7–47].”