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Isospin diffusion and equilibration for Sn plus Sn collisions at E/A=35 MeV

文献类型：期刊论文

作者De Filippo, E.5; Maiolino, C.6; Lukyanov, S.13; Lu, F.4,9,10; Liu, H.12; Lanzalone, G.5,7; La Guidara, E.5,11; Hua, H.9,10; Geraci, E.5,7; Galichet, E.6
刊名PHYSICAL REVIEW C
出版日期2010-11-23
卷号82期号:5页码:4
ISSN号0556-2813
DOI10.1103/PhysRevC.82.051603
英文摘要Equilibration and equilibration rates have been measured by colliding Sn nuclei with different isospin asymmetries at beam energies of E/A = 35 MeV. Using the yields of mirror nuclei of Li-7 and Be-7, we have studied the diffusion of isospin asymmetry by combining data from asymmetric Sn-112 + Sn-124 and Sn-124 + Sn-112 collisions with those from symmetric Sn-112 + Sn-112 and Sn-124 + Sn-124 collisions. We use these measurements to probe isospin equilibration in central collisions where nucleon-nucleon collisions are strongly blocked by the Pauli exclusion principle. The results are consistent with transport theoretical calculations that predict a degree of transparency in these collisions, but inconsistent with the emission of intermediate mass fragments by a single chemically equilibrated source. Comparisons with quantum molecular dynamics calculations are consistent with results obtained at higher incident energies that provide constraints on the density dependence of the symmetry energy.
WOS关键词HEAVY-ION COLLISIONS ; IMPACT-PARAMETER ; RECENT PROGRESS ; DYNAMICS ; AR-40 ; STATE ; MASS
资助项目US National Science Foundation[INT-0218329] ; US National Science Foundation[PHY 060007] ; US National Science Foundation[0800026] ; High Performance Computing Center (HPCC) at Michigan State University ; Texas Advanced Computing Center, University of Texas ; Chinese National Science Foundation[10675172] ; Chinese National Science Foundation[10979023] ; Chinese National Science Foundation[10175093] ; Chinese National Science Foundation[10235030]
WOS研究方向Physics
语种英语
WOS记录号WOS:000286733100001
出版者AMER PHYSICAL SOC
资助机构US National Science Foundation ; High Performance Computing Center (HPCC) at Michigan State University ; Texas Advanced Computing Center, University of Texas ; Chinese National Science Foundation
公开日期2011-04-20
源URL[http://ir.imp.cas.cn/handle/113462/7845]  
专题近代物理研究所_近代物理研究所知识存储（2010之前）
通讯作者Sun, Z. Y.
作者单位1.Michigan State Univ, Natl Superconducting Cyclotron Lab, E Lansing, MI 48824 USA
2.Michigan State Univ, Dept Phys & Astron, E Lansing, MI 48824 USA
3.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China
4.Michigan State Univ, Joint Inst Nucl Astrophys, E Lansing, MI 48824 USA
5.Ist Nazl Fis Nucl, Sez Catania, Catania, Italy
6.Ist Nazl Fis Nucl, Lab Nazl Sud, I-95129 Catania, Italy
7.Univ Catania, Dipartimento Fis & Astron, I-95124 Catania, Italy
8.PNPI, Gatchina 188300, Russia
9.Peking Univ, Sch Phys, Beijing 100871, Peoples R China
10.Peking Univ, State Key Lab Nucl Phys & Technol, Beijing 100871, Peoples R China
推荐引用方式
GB/T 7714		 De Filippo, E.,Maiolino, C.,Lukyanov, S.,et al. Isospin diffusion and equilibration for Sn plus Sn collisions at E/A=35 MeV[J]. PHYSICAL REVIEW C,2010,82(5):4.
APA De Filippo, E..,Maiolino, C..,Lukyanov, S..,Lu, F..,Liu, H..,...&Piantelli, S..(2010).Isospin diffusion and equilibration for Sn plus Sn collisions at E/A=35 MeV.PHYSICAL REVIEW C,82(5),4.
MLA De Filippo, E.,et al."Isospin diffusion and equilibration for Sn plus Sn collisions at E/A=35 MeV".PHYSICAL REVIEW C 82.5(2010):4.

入库方式： OAI收割

来源：近代物理研究所

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