Shape of collective flow in highly central Au(150 A MeV)+Au collisions

Roy, C.; Kuhn, C.; Coffin, J. P.; Crochet, P.; Fintz, P.; Guillaume, G.; Jundt, F.; Maazouzi, C.; Rami, F.; Tizniti, L.; Wagner, P.; Alard, J. P.; Amouroux, V.; Basrak, Z.; Bastid, N.; Belyaev, I.; Best, D.; Biegansky, J.; Buta, A.; Caplar, R.; Cindro, N.; Dona, R.; Dupieux, P.; Dzelalija, M.; Fan, Z. G.; Fodor, Z.; Fraysse, L.; Gobbi, A.; Herrmann, N.; Hildenbrand, K. D.; Hölbling, S.; Hong, B.; Jeong, S. C.; Kecskemeti, J.; Kirejczyk, M.; Koncz, P.; Korchagin, Y.; Kotte, R.; Lebedev, A.; Legrand, I.; Leifels, Y.; Manko, V.; Mgebrishvili, G.; Moisa, D.; Mösner, J.; Neubert, W.; Pelte, D.; Petrovici, M.; Pinkenburg, C.; Pras, P.; Reisdorf, W.; Ritman, J. L.; Sadchikov, A. G.; Schüll, D.; Seres, Z.; Sikora, B.; Simion, V.; Smolyankin, V.; Sodan, U.; Trzaska, M.; Vasiliev, M.; Wang, G. S.; Wessels, J. P.; Wienold, T.; Wohlfarth, D.; Zhilin, A.; Konopka, J.; Stöcker, H.

Shape of collective flow in highly central Au(150 A MeV)+Au collisions

Roy, C.; Kuhn, C.; Coffin, J. P.; Crochet, P.; Fintz, P.; Guillaume, G.; Jundt, F.; Maazouzi, C.; Rami, F.; Tizniti, L.; Wagner, P.; Alard, J. P.; Amouroux, V.; Basrak, Z.; Bastid, N.; Belyaev, I.; Best, D.; Biegansky, J.; Buta, A.; Caplar, R.; Cindro, N.; Dona, R.; Dupieux, P.; Dzelalija, M.; Fan, Z. G.; Fodor, Z.; Fraysse, L.; Gobbi, A.; Herrmann, N.; Hildenbrand, K. D.; Hölbling, S.; Hong, B.; Jeong, S. C.; Kecskemeti, J.; Kirejczyk, M.; Koncz, P.; Korchagin, Y.; Kotte, R.; Lebedev, A.; Legrand, I.; Leifels, Y.; Manko, V.; Mgebrishvili, G.; Moisa, D.; Mösner, J.; Neubert, W.; Pelte, D.; Petrovici, M.; Pinkenburg, C.; Pras, P.; Reisdorf, W.; Ritman, J. L.; Sadchikov, A. G.; Schüll, D.; Seres, Z.; Sikora, B.; Simion, V.; Smolyankin, V.; Sodan, U.; Trzaska, M.; Vasiliev, M.; Wang, G. S.; Wessels, J. P.; Wienold, T.; Wohlfarth, D.; Zhilin, A.; Konopka, J.; Stöcker, H.

Using the FOPI facility at GSI, charged particles (1\leqZ\leq6) produced in the Au(150 A MeV)+Au reaction have been measured at laboratory angles 1.20 these central collisions, have been extracted: the intensity ratio deduced for a transverse to longitudinal emission is found to be R=1.4+0.2-0.4. Model comparisons using QMD are presented. The value of R appears to depend sensitively on the nucleon-nucleon cross section, nn. Within this model, a value of nn=25±5 mb is derived.

Keywords: PACS: 25.70.-z

Zeitschrift für Physik A Hadrons and Nuclei Table of Contents Abstract Volume 358 Issue 1 (1997) pp 73-80

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