Isospin effects on the light particles in intermediate energy heavy ion collisions

被引：3
|
作者：
Zhang, HY
Ma, YG
Su, QM
Shen, WQ
Cai, XZ
Fang, DQ
Hu, PY
Han, DD
机构：
[1] Acad Sinica, Shanghai Inst Nucl Res, Shanghai 201800, Peoples R China
[2] Ningbo Univ, Dept Phys, Ningbo 315321, Peoples R China
[3] E China Normal Univ, Dept Elect Engn, Shanghai 200062, Peoples R China
来源：
ACTA PHYSICA SINICA | 2001年 / 50卷 / 02期
关键词：
isospin-dependent quantum molecular dynamics; isospin effects; ratio of the yields of light particles;
D O I：
10.7498/aps.50.193
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Within the framework of an isospin-dependent quantum molecular dynamics (IQMD) model,the emission features of light particles in Sn-112 + Sn-112 and Sn-124 + Sn-124 are investigated at different beam energy,different impact parameter,different EOS and different nucleon-nucleon cross section. Calculations show that the ratios of light particles are consistent with the systematics of entrance channel isospin and the midrapidity region can emit more neutron-rich particles than projectiles-like rapidity. In addition,it is found that the light particle ratio is sensitive to the nuclear EOS,but not to the nucleon-nucleon cross section,which makes it possible to extract the isospin-dependent EOS.
引用
收藏
页码：193 / 197
页数：5
相关论文
共 17 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
    AICHELIN, J
    [J]. PHYSICS REPORTS-REVIEW SECTION OF PHYSICS LETTERS, 1991, 202 (5-6): : 233 - 360
  • [2] Chen B, 2000, HIGH ENERG PHYS NUC, V24, P244
  • [3] VEGAS - A MONTE CARLO SIMULATION OF INTRANUCLEAR CASCADES
    CHEN, K
    FRAENKEL, Z
    FRIEDLANDER, G
    GROVER, JR
    MILLER, JM
    SHIMAMOTO, Y
    [J]. PHYSICAL REVIEW, 1968, 166 (04): : 949 - +
  • [4] Chen Liewen, 1996, High Energy Physics and Nuclear Physics, V20, P1091
  • [5] CHOMATZ PH, 1990, PHYS LETT B, V447, P211
  • [6] Isospin dependence of intermediate mass fragment production in heavy-ion collisions at E/A=55 MeV
    Dempsey, JF
    Charity, RJ
    Sobotka, LG
    Kunde, GJ
    Gaff, S
    Gelbke, CK
    Glasmacher, T
    Huang, MJ
    Lemmon, RC
    Lynch, WG
    Manduci, L
    Martin, L
    Tsang, MB
    Agnihotri, DK
    Djerroud, B
    Schroder, WU
    Skulski, W
    Toke, J
    Friedman, WA
    [J]. PHYSICAL REVIEW C, 1996, 54 (04): : 1710 - 1719
  • [7] THE GSI PROJECTILE FRAGMENT SEPARATOR (FRS) - A VERSATILE MAGNETIC SYSTEM FOR RELATIVISTIC HEAVY-IONS
    GEISSEL, H
    ARMBRUSTER, P
    BEHR, KH
    BRUNLE, A
    BURKARD, K
    CHEN, M
    FOLGER, H
    FRANCZAK, B
    KELLER, H
    KLEPPER, O
    LANGENBECK, B
    NICKEL, F
    PFENG, E
    PFUTZNER, M
    ROECKL, E
    RYKACZEWSKI, K
    SCHALL, I
    SCHARDT, D
    SCHEIDENBERGER, C
    SCHMIDT, KH
    SCHROTER, A
    SCHWAB, T
    SUMMERER, K
    WEBER, M
    MUNZENBERG, G
    BROHM, T
    CLERC, HG
    FAUERBACH, M
    GAIMARD, JJ
    GREWE, A
    HANELT, E
    KNODLER, B
    STEINER, M
    VOSS, B
    WECKENMANN, J
    ZIEGLER, C
    MAGEL, A
    WOLLNIK, H
    DUFOUR, JP
    FUJITA, Y
    VIEIRA, DJ
    SHERRILL, B
    [J]. NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS, 1992, 70 (1-4): : 286 - 297
  • [8] THE RIKEN RADIOACTIVE BEAM FACILITY
    KUBO, T
    ISHIHARA, M
    INABE, N
    KUMAGAI, H
    TANIHATA, I
    YOSHIDA, K
    NAKAMURA, T
    OKUNO, H
    SHIMOURA, S
    ASAHI, K
    [J]. NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS, 1992, 70 (1-4): : 309 - 319
  • [9] Isospin physics in heavy-ion collisions at intermediate energies
    Li, BA
    Ko, CM
    Bauer, W
    [J]. INTERNATIONAL JOURNAL OF MODERN PHYSICS E, 1998, 7 (02): : 147 - 229
  • [10] Isospin influences on particle emission and critical phenomena in nuclear dissociation
    Ma, YG
    Su, QM
    Shen, WQ
    Han, DD
    Wang, JS
    Cai, XZ
    Fang, DQ
    Zhang, HY
    [J]. PHYSICAL REVIEW C, 1999, 60 (02): : 10
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