TL;DR
ULYSSES is a flexible Python package designed to compute baryon asymmetry from leptogenesis via the type-I seesaw mechanism, enabling efficient parameter space exploration and supporting custom models.
Contribution
It introduces a versatile, user-friendly tool for solving Boltzmann equations in leptogenesis, with predefined options and plugin support for custom models.
Findings
Facilitates rapid evaluation of leptogenesis models
Supports multi-dimensional parameter space exploration
Provides customizable Boltzmann equation solutions
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
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