Computing the gauge-invariant bubble nucleation rate in finite temperature effective field theory

A bstract gauge-invariant framework for computing bubble nucleation rates at finite temperature in the presence of radiative barriers was presented and advocated model-building phenomenological studies an accompanying article [1]. Here, we detail this computation using Abelian Higgs Model as illustrative example. Subsequently, recast approach dimensionally-reduced high-temperature effective field theory nucleation. This allows including several higher order thermal resummations furthermore delineate clearly approach’s limits validity. provides robust perturbative treatments during possible first-order cosmic phase transitions, with implications electroweak baryogenesis production a stochastic gravitational wave background. Furthermore, it yields sound comparison between results non-perturbative computations.