{"paper":{"title":"Gravitational Leptogenesis and Neutrino Mass Limit","license":"","headline":"","cross_cats":["astro-ph","gr-qc","hep-th"],"primary_cat":"hep-ph","authors_text":"Hong Li, Mingzhe Li, Xinmin Zhang","submitted_at":"2004-03-29T16:14:34Z","abstract_excerpt":"Recently Davoudiasl {\\it et al} \\cite{steinhardt} have introduced a new type of interaction between the Ricci scalar $R$ and the baryon current $J^{\\mu}$, ${\\partial_\\mu R} J^{\\mu}$ and proposed a mechanism for baryogenesis, the gravitational baryogenesis. Generally, however, $\\partial_{\\mu} R$ vanishes in the radiation dominated era. In this paper we consider a generalized form of their interaction, $\\partial_{\\mu}f(R)J^{\\mu}$ and study again the possibility of gravitational baryo(lepto)genesis. Taking $f(R)\\sim \\ln R$, we will show that $\\partial_{\\mu}f(R)\\sim \\partial_{\\mu} R/R$ does not va"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-ph/0403281","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/hep-ph/0403281/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"}