Neck formation and fragmentation in intermediate energy heavy-ion collisions

被引：0

作者：

Chen, LW ^{[1
]}

Ge, LX ^{[1
]}

Zhang, FS ^{[1
]}

机构：

[1] Chinese Acad Sci, Inst Modern Phys, Lanzhou, Peoples R China

来源：

HIGH ENERGY PHYSICS & NUCLEAR PHYSICS-ENGLISH EDITION | 1997年 / 21卷 / 04期

关键词：

neck fragmentation; intermediate mass fragment; relative density fluctuation; shape instability; dynamical instability;

D O I：

暂无

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：

Under different impact parameters, the collision system of 30 MeV/u Ca-40 + Ca-40 is investigated in terms of the QMD model, It is shown that the number of IMFs is largest at impact parameter b = 6 fm, which is due to the formation of "neck" in the collision process. It is also found that, in the process of the formation of "neck," the growth of the relative density fluctuation of the reaction system is very slow and the saturation value is small, which imply the character of the shape instability.

引用

页码：73 / 78

页数：6

共 50 条

[1] TARGET FRAGMENTATION IN INTERMEDIATE ENERGY HEAVY-ION COLLISIONS
LOVELAND, W
ALEKLETT, K
SEABORG, GT
[J]. NUCLEAR PHYSICS A, 1986, 447 : C101 - C114
[2] ANALYSIS OF PROJECTILE FRAGMENTATION IN INTERMEDIATE-ENERGY HEAVY-ION COLLISIONS
SERES, Z
DEAK, F
KISS, A
CASKEY, G
GALONSKY, A
HEILBRONN, L
REMINGTON, B
[J]. NUCLEAR PHYSICS A, 1989, 492 (02) : 315 - 321
[3] HEAVY-ION COLLISIONS AT INTERMEDIATE ENERGY
BERTSCH, G
AMSDEN, AA
[J]. PHYSICAL REVIEW C, 1978, 18 (03): : 1293 - 1297
[4] INTERMEDIATE ENERGY HEAVY-ION COLLISIONS
BOCK, R
[J]. NUCLEAR PHYSICS A, 1983, 409 (NOV) : C321 - C326
[5] FRAGMENTATION IN MEDIUM ENERGY HEAVY-ION COLLISIONS
COLONNA, M
DITORO, M
LATORA, V
COLONNA, N
[J]. NUCLEAR PHYSICS A, 1992, 545 (1-2) : C111 - C122
[6] THE DYNAMICS OF INTERMEDIATE ENERGY HEAVY-ION COLLISIONS
AICHELIN, J
[J]. NUCLEAR PHYSICS A, 1986, 447 : C569 - C575
[7] RELAXATION PROCESSES IN INTERMEDIATE ENERGY HEAVY-ION COLLISIONS
CUBERO, M
SCHONHOFEN, M
FRIMAN, BL
NORENBERG, W
[J]. NUCLEAR PHYSICS A, 1990, 519 (1-2) : C345 - C356
[8] CRITICAL PHENOMENA IN INTERMEDIATE ENERGY HEAVY-ION COLLISIONS
SCOTT, DK
[J]. ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 1983, 186 (AUG): : 29 - NUCL
[9] TEMPERATURES FROM INTERMEDIATE ENERGY HEAVY-ION COLLISIONS
BARZ, HW
SCHULZ, H
BERTSCH, GF
[J]. PHYSICS LETTERS B, 1989, 217 (04) : 397 - 400
[10] ENERGY-STORAGE IN INTERMEDIATE-ENERGY HEAVY-ION COLLISIONS
GE, LX
ZENG, XH
ZUO, W
[J]. PHYSICAL REVIEW C, 1994, 50 (04): : 2129 - 2135

← 1 2 3 4 5 →