Midrapidity source of intermediate-mass fragments in highly central collisions of Au + Au at 150 A MeV

Charged particles have been observed in collisions of Au on Au at an incident energy of 150{ital A} MeV using a high-granularity detector system covering approximately the forward hemisphere in the center-of-mass system. Highly central collisions have been studied using a double selection criterion...

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Veröffentlicht in:	Physical review letters 1992-08, Vol.69 (6), p.889-892
Hauptverfasser:	Alard, J. P., Basrak, Z., Bastid, N., Belayev, I. M., Bini, M., Blaich, Th, Bock, R., Buta, A., Čaplar, R., Cerruti, C., Cindro, N., Coffin, J. P., Crouau, M., Dupieux, P., Erö, J., Fan, Z. G., Fintz, P., Fodor, Z., Freifelder, R., Fraysse, L., Frolov, S., Gobbi, A., Grigorian, Y., Guillaume, G., Herrmann, N., Hildenbrand, K. D., Hölbling, S., Houari, O., Jeong, S. C., Jorio, M., Jundt, F., Kecskemeti, J., Koncz, P., Korchagin, Y., Kotte, R., Krämer, M., Kuhn, C., Legrand, I., Lebedev, A., Maguire, C., Manko, V., Matulewicz, T., Mgebrishvili, G., Mösner, J., Moisa, D., Montarou, G., Morel, P., Neubert, W., Olmi, A., Pasquali, G., Pelte, D., Petrovici, M., Poggi, G., Rami, F., Reisdorf, W., Sadchikov, A., Schüll, D., Seres, Z., Sikora, B., Simion, V., Smolyankin, S., Sodan, U., Taccetti, N., Teh, K., Tezkratt, R., Trzaska, M., Vasiliev, M. A., Wagner, P., Wessels, J. P., Wienold, T., Wilhelmi, Z., Wohlfarth, D., Zhilin, A. V.
Format:	Artikel
Sprache:	eng
Schlagworte:	663450 - Heavy-Ion-Induced Reactions & Scattering- (1992-) 663580 - Nuclear Mass Ranges- A=190-219- (1992-) CHARGED PARTICLES CHARGED-PARTICLE REACTIONS CROSS SECTIONS DIFFERENTIAL CROSS SECTIONS ENERGY RANGE EQUATIONS EQUATIONS OF STATE GEV RANGE GEV RANGE 10-100 GOLD ISOTOPES HEAVY ION REACTIONS High Energy Physics - Experiment ISOTOPES LINEAR MOMENTUM NUCLEAR FRAGMENTATION NUCLEAR PHYSICS AND RADIATION PHYSICS NUCLEAR REACTIONS PARTICLE PROPERTIES PARTICLE RAPIDITY Physics TRANSVERSE MOMENTUM
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Beschreibung
Zusammenfassung:	Charged particles have been observed in collisions of Au on Au at an incident energy of 150{ital A} MeV using a high-granularity detector system covering approximately the forward hemisphere in the center-of-mass system. Highly central collisions have been studied using a double selection criterion which combines large charged-particle multiplicities with small transverse-momentum directivities. In this class of events about one quarter of the total nuclear charge emerges as intermediate-mass fragments with nuclear charges {ital Z}{gt}2. These fragments are centered at midrapidity and are produced with large transverse velocities.
ISSN:	0031-9007 1079-7114
DOI:	10.1103/PhysRevLett.69.889