{"schema":"hottub-news/story/v1","story":"st_o4ysuxzosycfbflkilrq","title":"Neutrino Direct Simulation Monte Carlo: Accurate modeling of out-of-equilibrium decaying cosmological relics","title_en":null,"outlets":1,"brief":null,"page":"https://hottub.news/stories/neutrino-direct-simulation-monte-carlo-accurate-modeling-of-out-of-o4ysuxzosy","count":1,"items":[{"id":"n_o4ysuxzosycfbflkilrq","seq":608141,"kind":"research","title":"Neutrino Direct Simulation Monte Carlo: Accurate modeling of out-of-equilibrium decaying cosmological relics","url":"https://arxiv.org/abs/2609.31833","summary":"arXiv:2609.31833v1 Announce Type: cross Abstract: We consider nonstandard cosmologies in which decaying relics inject energy at MeV temperatures, driving neutrinos out of equilibrium. The subsequent neutrino evolution shapes predictions for the cosmic radiation density and primordial light element abundances. Earlier work introduced Neutrino Direct Simulation Monte Carlo ($\\nu$DSMC), which describes neutrino transport through Monte Carlo sampling of particle interactions.…","published":"2026-09-29T04:00:00Z","seen":"2026-09-29T07:46:41Z","lang":"en","source":{"id":"arxiv-astro-ph","name":"arXiv astro-ph (astrophysics)","domain":"arxiv.org","outlet":{"wikidata":"Q118398","name":"arXiv","type":"website","country":"US","designations":["bibliographic database","disciplinary repository","online database","open science tool","preprint server","website"]}},"via":"arxiv-astro-ph","topics":["space","astrophysics","hep-ph","astro-ph.co"],"authors":["Kensuke Akita, Miguel Escudero, Oleksii Ihnatenko, Maksym Ovchynnikov"],"entities":[{"id":"Q2126","name":"neutrino","type":"other"}],"story":"st_o4ysuxzosycfbflkilrq","category":"science-technology","category_p":0.8799999952316284,"sentiment":"neutral","tone":-0.009999999776482582,"political":0.019999999552965164}]}