{"paper":{"title":"Constraining nucleon effective masses with flow and stopping observables from the S$\\pi$RIT experiment","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["nucl-th"],"primary_cat":"nucl-ex","authors_text":"A.B. McIntosh, A. Horvat, A. Snoch, A. Sochocka, B. Hong, C. Santamaria, C.Y. Tsang, D. Rossi, D.S. Ahn, D. Suzuki, G. Cerizza, G. Jhang, H. Baba, H. Otsu, H. Sakurai, H. Sato, H. Scheit, H. Simon, H. Suzuki, H. Takeda, H. T\\\"ornqvist, I. Gasparic, J. Barney, J. Brzychczyk, J. Estee, J. Manfredi, J.W. Lee, K. Boretzky, K. Pelczar, L. Atar, M.B. Tsang, M. Kaneko, M. Kurata-Nishimura, N. Chiga, N. Fukuda, N. Nakatsuka, P. Morfouace, P. Pawlowski, R. Shane, R. Wang, S$\\pi$RIT collaboration, S.J. Yennello, S. Nishimura, S. Tangwancharoen, T. Aumann, T. Isobe, T. Murakami, T. Nakamura, T. Sumikama, W.G. Lynch, Y. Shimizu, Y. Togano, Y.X. Zhang, Y. Zhang, Z.G. Xiao","submitted_at":"2023-12-08T23:59:29Z","abstract_excerpt":"Properties of the nuclear equation of state (EoS) can be probed by measuring the dynamical properties of nucleus-nucleus collisions. In this study, we present the directed flow ($v_1$), elliptic flow ($v_2$) and stopping (VarXZ) measured in fixed target Sn + Sn collisions at 270 AMeV with the S$\\pi$RIT Time Projection Chamber. We perform Bayesian analyses in which EoS parameters are varied simultaneously within the Improved Quantum Molecular Dynamics-Skyrme (ImQMD-Sky) transport code to obtain a multivariate correlated constraint. The varied parameters include symmetry energy, $S_0$, and slope"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2312.06678","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/2312.06678/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"}