Work

Testing nucleation calculations for strong phase transitions

Year: 2025

Type: conference-paper

Abstract: Accurate calculations of the nucleation rate $\Gamma$ for first order phase transitions are important for determining their observable consequences in particle physics and cosmology. Perturbative calculations are often used, but they are incomplete and should be tested against fully nonperturbative lattice simulations. We simulate nucleation on the lattice in a scalar field theory with a tree-level barrier, a scenario which should be well described by perturbation theory. Our computation of the nucleation rate, however, only shows qualitative agreement with the perturbative result. This motivates further study of nucleation on the lattice and to higher orders in perturbation theory.

Source: International Symposium on Lattice Field Theory (LATTICE)

DOI: 10.22323/1.466.0365

Authors: David Weir, Oliver Gould, Anna Kormu

Institutions: University of Helsinki, University of Nottingham, Helsinki Institute of Physics

Language: English

Topic: Particle physics theoretical and experimental studies

Subfield: Nuclear and High Energy Physics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: hybrid