| Thème(s) : |
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Physique/Physique Nucléaire Expérimentale
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| Titre : |
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Subthreshold production of $\Sigma$(1385) baryons in Al+Al collisions at 1.9 A GeV |
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| Auteur : |
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X. Lopez, N. Herrmann, P. Crochet1, A. Andronic, V. Barret1, Z. Basrak, N. Bastid1, M. L. Benabderrahmane, P. Buehler, M. Cargnelli, R. Caplar, E. Cordier, P. Dupieux1, M. Dˇzelalija, L. Fabbietti, Z. Fodor, I. Gaspari'c, Y. Grishkin, O. N. Hartmann, K. D. Hildenbrand, B. Hong, T. I. Kang, J. Kecskemeti, M. Kirejczyk, Y. J. Kim, M. Kis, P. Koczon, M. Korolija, R. Kotte, A. A. Lebedev, Y. Leifels, V. Manko, J. Marton, T. Matulewicz, M. Merschmeyer, W. Neubert, D. Pelte, M. Petrovici, K. Piasecki, F. Rami2, W. Reisdorf, M. S. Ryu, P. Schmidt, A. Schüttauf, Z. Seres, B. Sikora, K. S. Sim, V. Simion, K. Siwek-Wilczynska, V. Smolyankin, G. Stoicea, K. Suzuki, Z. Tyminski, P. Wagner2, E. Widmann, K. Wisniewski, D. Wohlfarth, Z. G. Xiao, I. Yushmanov, X. Y. Zhang, A. Zhilin, J. Zmeskal |
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| Laboratoire : |
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| Résumé : |
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First measurement of subthreshold Sigma(1385) production is presented. Experimental data are presented for Al+Al reactions at 1.9A GeV measured with the FOPI detector at SIS/GSI. The Sigma ( 1385) / Lambda ratio is found to be in good agreement with the transport and statistical model predictions. The results allow for a better understanding of subthreshold strangeness production and strangeness exchange reaction which is the dominant process for K- production below and close-to threshold. |
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| Collaboration/Projet : |
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FOPI |
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| Type de publication : |
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Articles dans des revues avec comité de lecture |
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Date de publication ou d'écriture : |
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2007 |
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| Nom du périodique : |
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| Physical Review C (Phys. Rev. C) |
| Publisher |
American Physical Society |
| ISSN |
0556-2813 (eISSN : 1089-490X) |
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| Volume : |
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76 |
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| Page/Article : |
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052203 |
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| Copyright : |
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©2007 The American Physical Society |
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| Classification PACS : |
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25.75.Dw |
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