{"paper":{"title":"System-size and centrality dependence of charged kaon and pion production in nucleus-nucleus collisions at 40A GeV and158A GeV beam energy","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"nucl-ex","authors_text":"1 A. Rybicki, A.D. Panagiotou, A.I. Malakhov, A. Karev, A. Laszlo, A. Sandoval, A. Wojtaszek-Szwarc, B. Baatar, B. Boimska, B. Lungwitz, C. Blume, C. H\\\"ohne, C. Roland, D. Barna, D. Kresan, D. Prindle, D. Varga, D. Vranic, E. Skrzypczak, F. P\\\"uhlhofer, F. Sikler, G.I. Veres, G.L. Melkumov, G. Palla, G. Roland, G. Stefanek, G. Vesztergombi, H. Beck, H. Bialkowska, H. Str\\\"obele, J. Bartke, J. Book, J.G. Cramer, J. Pluta, K. Grebieszkow, K. Kadija, L. Betev, M. Bogusz, M. Botje, M. Gazdzicki, M. Kliemant, M. Kowalski, M. Mackowiak, M. Makariev, M. Mateev, M. Mitrovski, M. Rybczynski, M. Slodkowski, M. Szuba, M.Utvic, M. van Leeuwen, M. Vassiliou, NA49 Collaboration: T. Anticic, N. Schmitz, O. Chvala, P. Buncic, P. Christakoglou, P. Chung, P. Dinkelaker, P. Foka, P. Seyboth, R. Lacey, R. Renfordt, R. Stock, St. Mrowczynski, T. Cetner, T. Kollegger, T. Schuster, T. Susa, V. Eckardt, V. Friese, V.I. Kolesnikov, V. Nicolic, W. Peryt, Z. Fodor, Z. Wlodarczyk","submitted_at":"2012-07-02T11:31:33Z","abstract_excerpt":"Measurements of charged pion and kaon production are presented in centrality selected Pb+Pb collisions at 40A GeV and 158A GeV beam energy as well as in semi-central C+C and Si+Si interactions at 40A GeV. Transverse mass spectra, rapidity spectra and total yields are determined as a function of centrality. The system-size and centrality dependence of relative strangeness production in nucleus-nucleus collisions at 40A GeV and 158A GeV beam energy are derived from the data presented here and published data for C+C and Si+Si collisions at 158A GeV beam energy. At both energies a steep increase w"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1207.0348","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":""},"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"}