IMPACT PARAMETER DEPENDENCE OF HARD PHOTON PRODUCTION IN INTERMEDIATE-ENERGY HEAVY-ION COLLISIONS

被引：25
|
作者：
MARTINEZ, G
DIAZ, J
FRANKE, M
HLAVAC, S
HOLZMANN, R
LAUTRIDOU, P
LEFEVRE, F
LOHNER, H
MARIN, A
MARQUES, M
MATULEWICZ, T
MITTIG, W
OSTENDORF, RW
VANPOL, JHG
QUEBERT, J
ROUSSELCHOMAZ, P
SCHUTZ, Y
SCHUBERT, A
SIEMSSEN, RH
SIMON, RS
SUJKOWSKI, Z
WAGNER, V
WILSCHUT, HW
机构：
[1] DEPT FIS ATOM MOLEC & NUCL, E-46100 BURJASSOT, SPAIN
[2] GESELL SCHWERIONENFORSCH MBH, D-64291 DARMSTADT, GERMANY
[3] GRAND ACCELERATEUR NATL IONS LOURDS, F-14021 CAEN, FRANCE
[4] KERNFYSISCH VERSNELLER INST, 9747 AA GRONINGEN, NETHERLANDS
[5] CEN BORDEAUX GRADIGNAN, F-33175 GRADIGNAN, FRANCE
[6] SOLTAN INST NUCL STUDIES, PL-05400 OTWOCK, POLAND
[7] NUCL PHYS INST, CS-25068 PRAGUE, CZECH REPUBLIC
[8] UNIV GIESSEN, INST PHYS 2, D-35392 GIESSEN, GERMANY
来源：
PHYSICS LETTERS B | 1994年 / 334卷 / 1-2期
关键词：
D O I：
10.1016/0370-2693(94)90586-X
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
Hard photon production was investigated in the system Kr-86 + (nat)Ni at 60 A MeV for a wide range of impact parameters. The parameters characteristic of hard photon emission such as source velocities, angular distributions and energy spectra were studied from peripheral to central collisions. The energy spectrum is seen to be strongly dependent on the centrality of the collision reflecting both a static and dynamic momentum distribution of the nucleons inside the collision zone.
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页码：23 / 28
页数：6
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