{"id":6437,"date":"2023-06-30T00:00:00","date_gmt":"2023-06-30T07:00:00","guid":{"rendered":"https:\/\/www.hmc.edu\/physics\/research\/publications\/ulysses-universal-leptogenesis-equation-solver-version-2\/"},"modified":"2025-12-19T08:27:01","modified_gmt":"2025-12-19T16:27:01","slug":"ulysses-universal-leptogenesis-equation-solver-version-2","status":"publish","type":"physics_publications","link":"https:\/\/www.hmc.edu\/physics\/research\/publications\/ulysses-universal-leptogenesis-equation-solver-version-2\/","title":{"rendered":"ULYSSES, Universal LeptogeneSiS Equation Solver: version 2"},"content":{"rendered":"<p>Alessandro Granelli et al.<\/p>\n<p><a href=\"https:\/\/www.sciencedirect.com\/science\/article\/pii\/S0010465523001790\">ULYSSES, Universal LeptogeneSiS Equation Solver: version 2<\/a><\/p>\n<p>Computer Physics Communications 291, 108834 (2023)<\/p>\n<h2>Abstract<\/h2>\n<p>ULYSSES is a Python package that calculates the baryon asymmetry produced from leptogenesis in the context of a type-I seesaw mechanism. In this release, the new features include code which solves the Boltzmann equations for low-scale leptogenesis; the complete Boltzmann equations for thermal leptogenesis applying proper quantum statistics without assuming kinetic equilibrium of the right-handed neutrinos; and, primordial black hole-induced leptogenesis. ULYSSES version 2 has the added functionality of a pre-provided script for a two-dimensional grid scan of the parameter space. As before, the emphasis of the code is on user flexibility, rapid evaluation and is publicly available at https:\/\/github.com\/earlyuniverse\/ulysses.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Alessandro Granelli et al. ULYSSES, Universal LeptogeneSiS Equation Solver: version 2 Computer Physics Communications 291, 108834 (2023) Abstract ULYSSES is [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"template":"","publication_author":[23],"class_list":["post-6437","physics_publications","type-physics_publications","status-publish","hentry","publication_author-shuve"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.hmc.edu\/physics\/wp-json\/wp\/v2\/physics_publications\/6437","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.hmc.edu\/physics\/wp-json\/wp\/v2\/physics_publications"}],"about":[{"href":"https:\/\/www.hmc.edu\/physics\/wp-json\/wp\/v2\/types\/physics_publications"}],"author":[{"embeddable":true,"href":"https:\/\/www.hmc.edu\/physics\/wp-json\/wp\/v2\/users\/1"}],"wp:attachment":[{"href":"https:\/\/www.hmc.edu\/physics\/wp-json\/wp\/v2\/media?parent=6437"}],"wp:term":[{"taxonomy":"publication_author","embeddable":true,"href":"https:\/\/www.hmc.edu\/physics\/wp-json\/wp\/v2\/publication_author?post=6437"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}