{"paper":{"title":"Evidence for Thermal Equilibration in Multifragmentation Reactions probed with Bremsstrahlung Photons","license":"","headline":"","cross_cats":[],"primary_cat":"nucl-ex","authors_text":"A. Chbihi, A. Kugler, D.G. d'Enterria, D. Stracener, G. Mart\\'inez, H. Delagrange, H. L\\\"ohner, H. Wilschut, J. D\\'iaz, L. Aphecetche, M. Hoefman, M.J. Mora, M.J. van Goethem, M. Volkerts, N. Yahlali, P. Tlusty, R.H. Siemssen, R. Ortega, R. Ostendorf, R. Turrisi, S. Schadmand, V. Wagner, Y. Schutz","submitted_at":"2000-12-23T20:24:21Z","abstract_excerpt":"The production of nuclear bremsstrahlung photons (E$_{\\gamma}>$ 30 MeV) has been studied in inclusive and exclusive measurements in four heavy-ion reactions at 60{\\it A} MeV. The measured photon spectra, angular distributions and multiplicities indicate that a significant part of the hard-photons are emitted in secondary nucleon-nucleon collisions from a thermally equilibrated system. The observation of the thermal component in multi-fragment $^{36}$Ar+$^{197}$Au reactions suggests that the breakup of the thermalized source produced in this system occurs on a rather long time-scale."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"nucl-ex/0012009","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"}