{"paper":{"title":"Cosmological decay of Higgs-like scalars into a fermion channel","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.CO","gr-qc","hep-th"],"primary_cat":"hep-ph","authors_text":"Daniel Boyanovsky, Nathan Herring","submitted_at":"2019-04-28T16:36:32Z","abstract_excerpt":"We study the decay of a Higgs-like scalar Yukawa coupled to massless fermions in post-inflationary cosmology, combining a non-perturbative method with an adiabatic expansion. The renormalized survival probability $\\mathcal{P}_\\Phi(t)$ of a (quasi) particle ``born'' at time $t_b$ and decaying at rest in the comoving frame, $\\mathcal{P}_\\Phi(t) = \\Big[\\frac{t}{t_b}\\Big]^{-\\frac{Y^2}{8\\pi^2}}~ e^{ \\frac{Y^2}{4\\pi^2}\\,\\big(t/t_b\\big)^{1/4} } \\,e^{-\\Gamma_0\\,(t-t_b)}~ \\mathcal{P}_\\Phi(t_b) $, with $\\Gamma_0$ the decay rate at rest in Minkowski space-time. For an ultrarelativistic particle we find $"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1904.12343","kind":"arxiv","version":2},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"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"}