VELOCITY CORRELATIONS OF INTERMEDIATE-MASS FRAGMENTS PRODUCED IN CENTRAL COLLISIONS OF AU+AU AT E=150A MEV

被引：44

作者：

KAMPFER, B

KOTTE, R

MOSNER, J

NEUBERT, W

WOHLFARTH, D

ALARD, JP

BASRAK, Z

BASTID, N

BELAYEV, IM

BLAICH, T

BUTA, A

CAPLAR, R

CERRUTI, C

CINDRO, N

COFFIN, JP

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, A

JEONG, SC

JORIO, M

JUNDT, F

KECSKEMETI, J

KONCZ, P

KORCHAGIN, Y

KRAMER, M

KUHN, C

LEGRAND, I

LEBEDEV, A

MAGUIRE, C

MANKO, V

MATULEWICZ, T

MGEBRISHVILI, G

MOISA, D

MONTARU, G

MONTBEL, I

MOREL, P

PELTE, D

PETROVICI, M

机构：

[1] LAB PHYS CORPUSCULAIRE, CLERMONT FERRAND, FRANCE

[2] MOSCOW EXPTL & THEORET PHYS INST, MOSCOW, RUSSIA

[3] IV KURCHATOV ATOM ENERGY INST, MOSCOW, RUSSIA

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

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

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

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

[8] TECH UNIV DRESDEN, INST THEORET PHYS, KAI EV, O-8027 DRESDEN, GERMANY

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

[10] INST PHYS & NUCL ENGN, BUCHAREST, ROMANIA

[11] GESELL SCHWERIONENFORSCH MBH, W-6100 DARMSTADT 11, GERMANY

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

[13] RUDJER BOSKOVIC INST, 41001 ZAGREB, CROATIA

来源：

PHYSICAL REVIEW C | 1993年 / 48卷 / 03期

关键词：

D O I：

10.1103/PhysRevC.48.R955

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

Velocity correlations of intermediate mass fragments (IMFs), produced in central collisions of Au + Au at 150 A MeV beam energy, are extracted from measurements with the FOPI (phase I) detector system at SIS in GSI Darmstadt. The IMF correlation function for semicentral events is found to be affected by the directed sideward flow. When rotating the events into a unique reaction plane an enhancement of correlations, resulting from event mixing effects, vanishes. Selecting violent collisions with a high degree of azimuthal symmetry the correlation function appears nearly independent of additional event or single particle gate conditions. The comparison of the data with a Coulomb dominated final-state interaction model points to an expanding and multifragmenting source with radius R is similar to 14 fm.

引用

页码：R955 / R959

页数：5

共 35 条

[1] QUANTUM MOLECULAR-DYNAMICS - A DYNAMIC MICROSCOPIC N-BODY APPROACH TO INVESTIGATE FRAGMENT FORMATION AND THE NUCLEAR-EQUATION OF STATE IN HEAVY-ION COLLISIONS [J].

AICHELIN, J .

PHYSICS REPORTS-REVIEW SECTION OF PHYSICS LETTERS, 1991, 202 (5-6) :233-360

[2] MIDRAPIDITY SOURCE OF INTERMEDIATE-MASS FRAGMENTS IN HIGHLY CENTRAL COLLISIONS OF AU + AU AT 150A MEV [J].

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 .

PHYSICAL REVIEW LETTERS, 1992, 69 (06) :889-892

[3]

ALARD JP, 1992, GSI921 SCI REP, P25

[4] VELOCITY CORRELATIONS IN THE MULTIFRAGMENTATION SCENARIO [J].

BARZ, HW ;

BONDORF, JP ;

SNEPPEN, K ;

SCHULZ, H .

PHYSICS LETTERS B, 1990, 244 (02) :161-164

[5] OBSERVATION OF A SATURATION IN THE TIME-SCALE FOR MULTIFRAGMENT EMISSION IN SYMMETRICAL HEAVY-ION COLLISIONS [J].

BAUGE, E ;

ELMAANI, A ;

LACEY, RA ;

LAURET, J ;

AJITANAND, NN ;

CRAIG, D ;

CRONQVIST, M ;

GUALTIERI, E ;

HANNUSCHKE, S ;

LI, T ;

LLOPE, B ;

REPOSEUR, T ;

VANDERMOLEN, A ;

WESTFALL, GD ;

WINFIELD, JS ;

YEE, J ;

YENNELLO, S ;

NADASEN, A ;

TICKLE, RS ;

NORBECK, E .

PHYSICAL REVIEW LETTERS, 1993, 70 (24) :3705-3708

[6] INTENSITY INTERFEROMETRY IN SUBATOMIC PHYSICS [J].

BOAL, DH ;

GELBKE, CK ;

JENNINGS, BK .

REVIEWS OF MODERN PHYSICS, 1990, 62 (03) :553-602

[7] MULTIFRAGMENTATION NEAR THE THRESHOLD [J].

BOHNET, A ;

AICHELIN, J ;

POCHODZALLA, J ;

TRAUTMANN, W ;

PEILERT, G ;

STOCKER, H ;

GREINER, W .

PHYSICAL REVIEW C, 1991, 44 (05) :2111-2129

[8] STATISTICAL MULTIFRAGMENTATION OF NUCLEI .2. APPLICATION OF THE MODEL TO FINITE NUCLEI DISASSEMBLY [J].

BONDORF, J ;

DONANGELO, R ;

MISHUSTIN, IN ;

SCHULZ, H .

NUCLEAR PHYSICS A, 1985, 444 (03) :460-476

[9] ENERGY THRESHOLDS FOR FRAGMENTATION AND VAPORIZATION OF THE ATOMIC NUCLEUS [J].

BONDORF, JP ;

DONANGELO, R ;

SCHULZ, H ;

SNEPPEN, K .

PHYSICS LETTERS B, 1985, 162 (1-3) :30-34

[10] SOURCES AND EMISSION TIME SCALES IN E/A = 50-MEV XE-129 PLUS (NAT)CU REACTIONS [J].

BOWMAN, DR ;

PEASLEE, GF ;

CARLIN, N ;

DESOUZA, RT ;

GELBKE, CK ;

GONG, WG ;

KIM, YD ;

LISA, MA ;

LYNCH, WG ;

PHAIR, L ;

TSANG, MB ;

WILLIAMS, C ;

COLONNA, N ;

HANOLD, K ;

MCMAHAN, MA ;

WOZNIAK, GJ ;

MORETTO, LG .

PHYSICAL REVIEW LETTERS, 1993, 70 (23) :3534-3537

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