PhaseTracer2: from the effective potential to gravitational waves Peter Athron, Csaba Balázs, Andrew Fowlie, Lachlan Morris, William Searle, Yang Xiao and Yang Zhang Eur. Phys. J. C, 85 5 (2025) 559 Published online: 21 May 2025 DOI: 10.1140/epjc/s10052-025-14258-y