{"paper":{"title":"Constraining the symmetry energy at subsaturation densities using isotope binding energy difference and neutron skin thickness","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.SR","nucl-ex"],"primary_cat":"nucl-th","authors_text":"Lie-Wen Chen, Zhen Zhang","submitted_at":"2013-02-21T16:29:57Z","abstract_excerpt":"We show that the neutron skin thickness $\\Delta r_{np}$ of heavy nuclei is uniquely fixed by the symmetry energy density slope $L({\\rho})$ at a subsaturation cross density $\\rho_c \\approx 0.11$ fm$^{-3}$ rather than at saturation density $\\rho_0$, while the binding energy difference $\\Delta E$ between a heavy isotope pair is essentially determined by the magnitude of the symmetry energy $E_{\\text{sym}}({\\rho})$ at the same $\\rho_c$. Furthermore, we find a value of $L({\\rho_c})$ leads to a negative $E_{\\text{sym}}({\\rho_{0}})$-$L({\\rho_{0}})$ correlation while a value of $E_{\\text{sym}}({\\rho_{"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1302.5327","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"}