# Theoretical uncertainties for cosmological first-order phase transitions

@article{Croon2020TheoreticalUF, title={Theoretical uncertainties for cosmological first-order phase transitions}, author={Djuna Croon and Oliver Gould and Philipp Schicho and Tuomas Tenkanen and Graham White}, journal={arXiv: High Energy Physics - Phenomenology}, year={2020} }

We critically examine the magnitude of theoretical uncertainties in perturbative calculations of first-order phase transitions, using the Standard Model effective field theory as our guide. In the usual daisy-resummed approach, we find large uncertainties due to renormalisation scale dependence, which amount to two to three orders-of-magnitude uncertainty in the signal-to-noise ratio for gravitational wave experiments, such as LISA. Alternatively, utilising dimensional reduction in a more…

## 58 Citations

On the perturbative expansion at high temperature and implications for cosmological phase transitions

- Physics
- 2021

We revisit the perturbative expansion at high temperature and investigate its convergence by inspecting the renormalisation scale dependence of the effective potential. Although at zero temperature…

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We study the thermal phase transitions of a generic real scalar field, without a Z2-symmetry, referred to variously as an inert, sterile or singlet scalar, or ϕ3 + ϕ4 theory. Such a scalar field…

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- PhysicsThe European Physical Journal C
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- PhysicsJournal of High Energy Physics
- 2021

Abstract
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- Physics
- 2020

We explore and contrast the capabilities of future colliders to probe the nature of the electro-weak phase transition. We focus on the real singlet scalar field extension of the Standard Model,…

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- 2021

Models of particle physics that feature phase transitions typically provide predictions for stochastic gravitational wave signals at future detectors and such predictions are used to delineate…

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- Physics
- 2021

We study gravity wave production and baryogenesis at the electroweak phase transition, in a real singlet scalar extension of the Standard Model, including vector-like top partners to generate the CP…

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- Physics
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Spectra of stochastic gravitational waves (GW) generated in cosmological first-order phase transitions are computed within strongly correlated theories with a dual holographic description. The…

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