ULYSSES, universal LeptogeneSiS equation solver: Version 2

• DOI: 10.1016/j.cpc.2023.108834
• Publication Date: 2023-06-27T00:34:45Z
• Authors: A. Granelli; C. Leslie; Y.F. Perez-Gonzalez; H. Schulz; B. Shuve; J. Turner; R. Walker
• Keywords: Leptogenesis; Solver

ULYSSES is a Python package that calculates the baryon asymmetry produced from leptogenesis in context of type-I seesaw mechanism. In this release, new features include code which solves Boltzmann equations for low-scale leptogenesis; complete thermal applying proper quantum statistics without assuming kinetic equilibrium right-handed neutrinos; and, primordial black hole-induced leptogenesis. version 2 has added functionality pre-provided script two-dimensional grid scan parameter space. As before, emphasis on user flexibility, rapid evaluation and publicly available at https://github.com/earlyuniverse/ulysses.