{"paper":{"title":"Novel mechanism for electric quadrupole moment generation in relativistic heavy-ion collisions","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["nucl-ex","nucl-th"],"primary_cat":"hep-ph","authors_text":"Guo-Liang Ma, Xin-Li Zhao, Yu-Gang Ma","submitted_at":"2019-01-14T07:00:04Z","abstract_excerpt":"We present the spatial distributions of electromagnetic fields ($\\bf E$ and $\\bf B$) and electromagnetic anomaly $ \\bf E \\cdot B$ in Au+Au collisions at the RHIC energy $\\sqrt{s}$=200 GeV based on a multi-phase transport model. A dipolar distribution of $\\bf E \\cdot B$ is observed in non-central collisions. We find that the coupling of the $\\bf E \\cdot B$ dipole and magnetic field $\\bf B$ can induce an electric quadrupole moment which can further lead to the difference in elliptic flows between positive charged particles and negative charged particles through final interactions. The centrality"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1901.04156","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"}