MICROSCOPIC STUDY OF THERMAL-PROPERTIES OF THE NUCLEAR-MATTER FORMED IN HEAVY-ION COLLISIONS

被引：36
作者：
KHOA, DT
OHTSUKA, N
FAESSLER, A
MATIN, MA
HUANG, SW
LEHMANN, E
LOFTY, Y
机构：
[1] UNIV TUBINGEN,INST THEORET PHYS,MORGENSTELLE 14,W-7400 TUBINGEN 1,GERMANY
[2] ONOMICHI JUNIOR COLL,ONOMICHI 722,JAPAN
[3] NISTARINI COLL,PURULIA 723101,W BENGAL,INDIA
来源：
NUCLEAR PHYSICS A | 1992年 / 542卷 / 04期
关键词：
D O I：
10.1016/0375-9474(92)90263-J
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：
The hot Thomas-Fermi formalism, generalized for the case of two interpenetrating pieces of nuclear matter, is applied to investigate thermal properties (the local temperature and entropy) of the nonequilibrium nuclear matter formed during the time evolution of heavy-ion collisions at intermediate energies. Simulations of Ne-20 + Ne-20, Ca-40 + Ca-40 and Nb-93 + Nb-93 collisions at E(lab) = 100-400 MeV/u are performed within the framework of the quantum molecular dynamics approach. The sensitivity of thermal properties to the nuclear equation of state as well as their connection with some other dynamic observables are discussed. The anisotropic effects of the nonequilibrium phase space distribution on the thermalization process and the energy- and impact-parameter-dependence of the calculated thermal quantities during the reaction time are studied in detail.
引用
收藏
页码：671 / 698
页数：28
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共 30 条
  • [1] QUANTUM MOLECULAR-DYNAMICS APPROACH TO HEAVY-ION COLLISIONS - DESCRIPTION OF THE MODEL, COMPARISON WITH FRAGMENTATION DATA, AND THE MECHANISM OF FRAGMENT FORMATION
    AICHELIN, J
    PEILERT, G
    BOHNET, A
    ROSENHAUER, A
    STOCKER, H
    GREINER, W
    [J]. PHYSICAL REVIEW C, 1988, 37 (06): : 2451 - 2468
  • [2] IMPORTANCE OF MOMENTUM-DEPENDENT INTERACTIONS FOR THE EXTRACTION OF THE NUCLEAR-EQUATION OF STATE FROM HIGH-ENERGY HEAVY-ION COLLISIONS
    AICHELIN, J
    ROSENHAUER, A
    PEILERT, G
    STOECKER, H
    GREINER, W
    [J]. PHYSICAL REVIEW LETTERS, 1987, 58 (19) : 1926 - 1929
  • [3] QUANTUM MOLECULAR-DYNAMICS - A NOVEL-APPROACH TO N-BODY CORRELATIONS IN HEAVY-ION COLLISIONS
    AICHELIN, J
    STOCKER, H
    [J]. PHYSICS LETTERS B, 1986, 176 (1-2) : 14 - 19
  • [4] SELF-CONSISTENT DESCRIPTION OF NUCLEAR-LEVEL DENSITIES
    BARRANCO, M
    TREINER, J
    [J]. NUCLEAR PHYSICS A, 1981, 351 (02) : 269 - 284
  • [5] BERENGUER M, IN PRESS J PHYS G
  • [6] A GUIDE TO MICROSCOPIC MODELS FOR INTERMEDIATE ENERGY HEAVY-ION COLLISIONS
    BERTSCH, GF
    DASGUPTA, S
    [J]. PHYSICS REPORTS-REVIEW SECTION OF PHYSICS LETTERS, 1988, 160 (04): : 189 - 233
  • [7] QUANTUM MOLECULAR-DYNAMICS APPROACH TO HEAVY-ION COLLISIONS WITH BRUECKNER G-MATRIX CROSS-SECTIONS
    BOHNET, A
    OHTSUKA, N
    AICHELIN, J
    LINDEN, R
    FAESSLER, A
    [J]. NUCLEAR PHYSICS A, 1989, 494 (02) : 349 - 364
  • [8] RELATIVISTIC HYDRODYNAMICS AND HEAVY-ION REACTIONS
    CLARE, RB
    STROTTMAN, D
    [J]. PHYSICS REPORTS-REVIEW SECTION OF PHYSICS LETTERS, 1986, 141 (04): : 177 - 280
  • [9] FRAGMENT FLOW IN NUCLEAR COLLISIONS
    DOSS, KGR
    GUSTAFSSON, HA
    GUTBROD, H
    HARRIS, JW
    JACAK, BV
    KAMPERT, KH
    KOLB, B
    POSKANZER, AM
    RITTER, HG
    SCHMIDT, HR
    TEITELBAUM, L
    TINCKNELL, M
    WEISS, S
    WIEMAN, H
    [J]. PHYSICAL REVIEW LETTERS, 1987, 59 (24) : 2720 - 2723
  • [10] PLASTIC BALL EXPERIMENTS
    GUTBROD, HH
    POSKANZER, AM
    RITTER, HG
    [J]. REPORTS ON PROGRESS IN PHYSICS, 1989, 52 (10) : 1267 - 1328
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