{"paper":{"title":"Properties of the Initial Participant Matter Interaction Zone in Near Fermi-Energy Heavy Ion Collisions","license":"","headline":"","cross_cats":[],"primary_cat":"nucl-ex","authors_text":"A. Keksis, A. Martinez-Davalos, A. Menchaca-Rocha, A. Ono, A. Ruangma, D. Fabris, D. V. Shetty, E. Martin, E. M. Winchester, G. Nebbia, G. Prete, G. Souliotis, G. Viesti, J. B. Natowitz, J. Cibor, J. Wang, K. Hagel, L. Qin, M. Cinausero, M. Lunardon, M. Murray, M. Veselsky, P. Staszel, R. Alfarro, R. Wada, S. J. Yennello, S. Kowalski, S. Moretto, S. Pesente, T. Keutgen, T. Materna, V. Rizzi, W. Zipper, Y. El Masri, Y. G. Ma, Z. Chen, Z. Majka","submitted_at":"2006-03-07T22:13:25Z","abstract_excerpt":"The sizes, temperatures and free neutron to proton ratios of the initial interaction zones produced in the collisions of 40 MeV/nucleon $^{40}$Ar + $^{112}$Sn and 55 MeV/nucleon$^{27}$Al + $^{124}$Sn are derived using total detected neutron plus charged particle multiplicity as a measure of the impact parameter range and number of participant nucleons. The size of the initial interaction zone, determined from a coalescence model analysis, increases significantly with decreasing impact parameter. The temperatures and free neutron to proton ratios in the interaction zones are relatively similar "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"nucl-ex/0603009","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/nucl-ex/0603009/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"}