New calculation of collision integrals for cosmological phase transitions Carlo Branchina, Angela Conaci, Stefania De Curtis, Luigi Delle Rose, Andrea Guiggiani, Ángel Gil Muyor and Giuliano Panico EPJ Web Conf., 314 (2024) 00031 Published online: 10 December 2024 DOI: 10.1051/epjconf/202431400031