Nonperturbative analysis of the gravitational waves from a first-order electroweak phase transition

Gould, Oliver; Kozaczuk, Jonathan; Niemi, Lauri; Ramsey-Musolf, Michael J.; Tenkanen, Tuomas V. I.; Weir, David J.

Abstract

We present the first end-to-end nonperturbative analysis of the gravitational wave power spectrum from a thermal first-order electroweak phase transition (EWPT), using the framework of dimensionally reduced effective field theory and preexisting nonperturbative simulation results. We are able to show that a first-order EWPT in any beyond the Standard Model (BSM) scenario that can be described by a Standard Model-like effective theory at long distances will produce gravitational wave signatures too weak to be observed at existing and planned detectors. This implies that colliders are likely to provide the best chance of exploring the phase structure of such theories, while transitions strong enough to be detected at gravitational wave experiments require either previously neglected higher-dimension operators or light BSM fields to be included in the dimensionally reduced effective theory and therefore necessitate dedicated nonperturbative studies. As a concrete application, we analyze the real singlet-extended Standard Model and identify regions of parameter space with single-step first-order transitions, comparing our findings to those obtained using a fully perturbative method. We discuss the prospects for exploring the electroweak phase diagram in this model at collider and gravitational wave experiments in light of our nonperturbative results.

Citation

Gould, O., Kozaczuk, J., Niemi, L., Ramsey-Musolf, M. J., Tenkanen, T. V. I., & Weir, D. J. (2019). Nonperturbative analysis of the gravitational waves from a first-order electroweak phase transition. Physical Review D, 100, Article 115024. https://doi.org/10.1103/PhysRevD.100.115024

• Journal Article Type: Article
• Acceptance Date: Oct 7, 2019
• Online Publication Date: Dec 12, 2019
• Publication Date: Dec 12, 2019
• Deposit Date: Jan 6, 2023
• Publicly Available Date: Jan 13, 2023
• Journal: Physical Review D
• Print ISSN: 2470-0010
• Electronic ISSN: 2470-0029
• Publisher: American Physical Society
• Peer Reviewed: Peer Reviewed
• Volume: 100
• Article Number: 115024
• DOI: https://doi.org/10.1103/PhysRevD.100.115024
• Public URL: https://nottingham-repository.worktribe.com/output/6187498
• Publisher URL: https://journals.aps.org/prd/abstract/10.1103/PhysRevD.100.115024