MIDRAPIDITY SOURCE OF INTERMEDIATE-MASS FRAGMENTS IN HIGHLY CENTRAL COLLISIONS OF AU + AU AT 150A MEV

被引：59

作者：

ALARD, JP

BASRAK, Z

BASTID, N

BELAYEV, IM

BINI, M

BLAICH, T

BOCK, R

BUTA, A

CAPLAR, R

CERRUTI, C

CINDRO, N

COFFIN, JP

CROUAU, M

DUPIEUX, P

ERO, J

FAN, ZG

FINTZ, P

FODOR, Z

FREIFELDER, R

FRAYSSE, L

FROLOV, S

GOBBI, A

GRIGORIAN, Y

GUILLAUME, G

HERRMANN, N

HILDENBRAND, KD

HOLBLING, S

HOUARI, O

JEONG, SC

JORIO, M

JUNDT, F

KECSKEMETI, J

KONCZ, P

KORCHAGIN, Y

KOTTE, R

KRAMER, M

KUHN, C

LEGRAND, I

LEBEDEV, A

MAGUIRE, C

MANKO, V

MATULEWICZ, T

MGEBRISHVILI, G

MOSNER, J

MOISA, D

MONTAROU, G

MOREL, P

NEUBERT, W

OLMI, A

PASQUALI, G

机构：

[1] HUNGARIAN ACAD SCI, CENT RES INST PHYS, H-1525 BUDAPEST, HUNGARY

[2] LAB PHYS CORPUSCULAIRE, CLERMONT FERRAND, FRANCE

[3] GESELL SCHWERIONENFORSCH GMBH, W-6100 DARMSTADT 11, GERMANY

[4] IST NAZL FIS NUCL, FLORENCE, ITALY

[5] UNIV FLORENCE, I-50121 FLORENCE, ITALY

[6] MOSCOW EXPTL & THEORET PHYS INST, MOSCOW, USSR

[7] UNIV HEIDELBERG, INST PHYS, W-6900 HEIDELBERG, GERMANY

[8] UNIV MAINZ, W-6500 MAINZ, GERMANY

[9] ZENT INST KERNFORSCH, ROSSENDORF, GERMANY

[10] IV KURCHATOV ATOM ENERGY INST, MOSCOW, USSR

[11] CTR RECH NUCL, F-67037 STRASBOURG, FRANCE

[12] UNIV STRASBOURG 1, F-67070 STRASBOURG, FRANCE

[13] UNIV WARSAW, INST EXPTL PHYS, PL-00325 WARSAW, POLAND

[14] RUDJER BOSKOVIC INST, YU-41001 ZAGREB, CROATIA

来源：

PHYSICAL REVIEW LETTERS | 1992年 / 69卷 / 06期

关键词：

D O I：

10.1103/PhysRevLett.69.889

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Charged particles have been observed in collisions of Au on Au at an incident energy of 150A 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 Z > 2. These fragments are centered at midrapidity and are produced with large transverse velocities.

引用

页码：889 / 892

页数：4

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