@misc{10481/107177, year = {2025}, month = {7}, url = {https://hdl.handle.net/10481/107177}, abstract = {We perform the first computation of phase-transition parameters to cubic order in λ ~ m2 / T2 , where m is the scalar mass and T is the temperature, in a simple model resembling the Higgs sector of the SMEFT. We use dimensional reduction, including 1-loop matching corrections for terms of dimension 6 (in 4-dimensional units), 2- loop contributions for dimension-4 ones and 3-loops for the squared mass. We precisely quantify the size of the different corrections, including renormalization-group running as well as quantum effects from light fields in the effective theory provided by the Coleman-Weinberg potential, and discuss briefly the implications for gravitational waves. Our results suggest that, for strong phase transitions, 1-loop corrections from dimension-6 operators can compete with 2-loop ones from quartic couplings and largely surpass those from 3-loop thermal masses.}, organization = {MCIN/AEI (10.13039/501100011033) y ERDF (PID2021-128396NB-I00, PID2022-139466NB-C22)}, organization = {Junta de Andalucía (FQM 101, P21-00199)}, organization = {Consejería de Universidad, Investigación e Innovación / Gobierno de España / Unión Europea (AST22 6.5, CNS2022-136024)}, organization = {RyC (RYC2019-027155-I)}, publisher = {IOP Publishing}, keywords = {phase transitions}, keywords = {effective field theory}, keywords = {renormalization}, title = {Phase transitions in dimensional reduction up to three loops}, doi = {10.1088/1674-1137/adf322}, author = {Rodríguez Chala, Mikael and Gil, Luis and Ren, Zhe}, }