{"schema":"hottub-news/list/v1","item_schema":"hottub-news/item/v1","count":2,"sponsored":0,"items":[{"id":"n_wwgpe356t4okoc2q52fa","seq":608218,"kind":"research","title":"Singlet-doublet dark matter induced radiative neutrino mass and TeV scale leptogenesis","url":"https://arxiv.org/abs/2605.04824","summary":"arXiv:2605.04824v2 Announce Type: replace-cross Abstract: The singlet-doublet dark matter (SDDM) model is a well-motivated WIMP framework that accommodates viable DM over a broad range of parameter space. In this work, we explore the possibility of TeV-scale leptogenesis within two realizations of the SDDM setup: Majorana SDDM scenario and Dirac SDDM scenario. The light neutrino mass, in either case, arises radiatively at one loop level. The particles running in the loop are…","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","hep-ex","hep-th"],"authors":["Partha Kumar Paul, Narendra Sahu, Shashwat Sharma"],"entities":[{"id":"Q79925","name":"dark matter","type":"other"},{"id":"Q2126","name":"neutrino","type":"other"},{"id":"Q843946","name":"Book of Jubilees","type":"event"}],"story":"st_wwgpe356t4okoc2q52fa","category":"science-technology","category_p":0.48,"sentiment":"neutral","tone":-0.03,"political":0.19},{"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":0.88,"sentiment":"neutral","tone":-0.01,"political":0.02}]}