Investigation of transverse collective flow of intermediate mass fragments

被引：51
|
作者：
Kohley, Z. [1 ,2 ]
May, L. W. [1 ,2 ]
Wuenschel, S. [1 ,2 ]
Bonasera, A. [2 ,3 ]
Hagel, K. [2 ]
Tripathi, R. [2 ]
Wada, R. [2 ]
Souliotis, G. A. [2 ,4 ]
Shetty, D. V. [2 ,6 ]
Galanopoulos, S. [2 ]
Mehlman, M. [2 ,5 ]
Smith, W. B. [2 ]
Soisson, S. N. [1 ,2 ]
Stein, B. C. [1 ,2 ]
Yennello, S. J. [1 ,2 ]
机构：
[1] Texas A&M Univ, Dept Chem, College Stn, TX 77843 USA
[2] Texas A&M Univ, Inst Cyclotron, College Stn, TX 77843 USA
[3] Ist Nazl Fis Nucl, Lab Naz Sud, I-95123 Catania, Italy
[4] Natl & Kapodistrian Univ Athens, Phys Chem Lab, Dept Chem, GR-15771 Athens, Greece
[5] Texas A&M Univ, Dept Phys & Astron, College Stn, TX 77843 USA
[6] Western Michigan Univ, Dept Phys, Kalamazoo, MI 49008 USA
来源：
PHYSICAL REVIEW C | 2010年 / 82卷 / 06期
关键词：
HEAVY-ION COLLISIONS; ISOSPIN DEPENDENCE; MOLECULAR-DYNAMICS; DISAPPEARANCE; SYSTEMATICS; PHYSICS; MOTION;
D O I：
10.1103/PhysRevC.82.064601
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 transverse flow of intermediate mass fragments (IMFs) has been investigated for the 35 MeV/u Zn-70 + Zn-70, Zn-64 + Zn-64, and Ni-64 + Ni-64 systems. A transition from the IMF transverse flow strongly depending on the mass of the system, in the most violent collisions, to a dependence on the charge of the system, for the peripheral reactions, is shown. This transition was shown to be sensitive to the density dependence of the symmetry energy using the antisymmetrized molecular-dynamics model. The results present an observable, the IMF transverse flow, that can be used to probe the nuclear equation of state. Comparison with the simulation demonstrated a preference for a stiff density dependence of the symmetry energy.
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页数：5
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