{ "id": "2312.06468", "version": "v1", "published": "2023-12-11T15:56:10.000Z", "updated": "2023-12-11T15:56:10.000Z", "title": "Constraints on initial baryon stopping and equation of state from directed flow", "authors": [ "Lipei Du", "Chun Shen", "Sangyong Jeon", "Charles Gale" ], "comment": "4 pages, 1 figure. Contribution to the proceedings of Quark Matter 2023 (Houston, TX, 3-9 Sep. 2023)", "categories": [ "nucl-th", "hep-ex", "hep-ph", "nucl-ex" ], "abstract": "Our investigation focuses on the rapidity-dependent directed flow, $v_1(y)$, of identified hadrons in Au+Au collisions across a broad range of $\\sqrt{s_{\\rm NN}}$ from 7.7 to 200 GeV. Employing a (3+1)-dimensional hybrid framework, our study successfully reproduces the characteristic features of the measured $v_1(y)$ for both mesons and baryons across the considered beam energies. Notably, our analysis reveals the constraining power of baryonic $v_1(y)$ on the initial baryon stopping mechanism. Together with mesonic $v_1(y)$, the directed flow serves as a crucial tool for probing the equation of state governing dense nuclear matter at finite chemical potentials.", "revisions": [ { "version": "v1", "updated": "2023-12-11T15:56:10.000Z" } ], "analyses": { "keywords": [ "constraints", "state governing dense nuclear matter", "initial baryon stopping mechanism", "hybrid framework", "directed flow serves" ], "note": { "typesetting": "TeX", "pages": 4, "language": "en", "license": "arXiv", "status": "editable" } } }