@misc{10481/96597,
year = {2024},
month = {10},
url = {https://hdl.handle.net/10481/96597},
abstract = {The dynamics of phase transitions (PT) in quantum field theories at finite
temperature is most accurately described within the framework of dimensional reduction. In
this framework, thermodynamic quantities are computed within the 3-dimensional effective
field theory (EFT) that results from integrating out the high-temperature Matsubara modes.
However, strong-enough PTs, observable in gravitational wave (GW) detectors, occur often
nearby the limit of validity of the EFT, where effective operators can no longer be neglected.
Here, we perform a quantitative analysis of the impact of these interactions on the determination
of PT parameters. We find that they allow for strong PTs in a wider region of
parameter space, and that both the peak frequency and the amplitude of the resulting GW
power spectrum can change by more than one order of magnitude when they are included.
As a byproduct of this work, we derive equations for computing the bounce solution in the
presence of higher-derivative terms, consistently with the EFT power counting.},
organization = {MICIU/AEI/10.13039/501100011033 and ERDF/EU
(grants PID2022-139466NB-C22 and PID2021-128396NB-I00)},
organization = {Junta de
Andalucía grants FQM 101 and P21-00199},
organization = {Consejería de Universidad, Investigación
e Innovación, Gobierno de España and Unión Europea — NextGenerationEU under grant
AST22_6.5},
organization = {Ramón y Cajal program under
grants RYC2019-027155-I and RYC2021-030842-I},
publisher = {SpringerLink},
keywords = {Cosmology of Theories BSM},
keywords = {Effective Field Theories},
keywords = {Phase Transitions in the Early Universe},
title = {Higher-order-operator corrections to phase-transition parameters in dimensional reduction},
doi = {10.1007/JHEP10(2024)025},
author = {Rodríguez Chala, Mikael and Criado Álamo, Juan Carlos and Gil Martín, Luis and Miras, Javier López},
}