English

ULYSSES: Universal LeptogeneSiS Equation Solver

High Energy Physics - Phenomenology 2023-07-10 v1

Abstract

ULYSSES is a python package that calculates the baryon asymmetry produced from leptogenesis in the context of a type-I seesaw mechanism. The code solves the semi-classical Boltzmann equations for points in the model parameter space as specified by the user. We provide a selection of predefined Boltzmann equations as well as a plugin mechanism for externally provided models of leptogenesis. Furthermore, the ULYSSES code provides tools for multi-dimensional parameter space exploration. The emphasis of the code is on user flexibility and rapid evaluation. It is publicly available at https://github.com/earlyuniverse/ulysses

Keywords

Cite

@article{arxiv.2007.09150,
  title  = {ULYSSES: Universal LeptogeneSiS Equation Solver},
  author = {Alessandro Granelli and Kristian Moffat and Yuber Perez-Gonzalez and Holger Schulz and Jessica Turner},
  journal= {arXiv preprint arXiv:2007.09150},
  year   = {2023}
}

Comments

20 pages, 2 figures, 4 tables

R2 v1 2026-06-23T17:12:16.247Z