Probing the equation of state of asymmetric nuclear matter with isospin diffusion and stopping in heavy-ion collisions

被引：0

作者：

Verde, G. ^{[1
]}

Sun, Z. Y. ^{[2
,3
,4
]}

Tsang, M. B. ^{[2
,3
]}

Lynch, W. G. ^{[2
,3
]}

Amorini, F. ^{[5
,6
]}

Andronenko, L. ^{[2
,3
,7
]}

Andronenko, M. ^{[2
,3
,7
]}

Cardella, G. ^{[1
]}

Chatterje, M. ^{[5
]}

Danielewicz, P. ^{[2
,3
]}

De Filippo, E. ^{[1
]}

Dinh, P. ^{[2
,3
]}

Galichet, E. ^{[5
]}

Geraci, E. ^{[6
]}

Hua, H. ^{[8
]}

La Guidara, E. ^{[1
,9
]}

Lanzalone, G. ^{[1
,6
]}

Liu, H. ^{[10
]}

Lu, F. ^{[11
]}

Maiolino, C. ^{[5
]}

Pagano, A. ^{[1
]}

Piantelli, S. ^{[12
]}

Papa, M. ^{[1
]}

Pirrone, S. ^{[1
]}

Politi, G. ^{[5
,6
]}

Porto, F. ^{[5
,6
]}

Rizzo, F. ^{[5
,6
]}

Russotto, P. ^{[5
,6
]}

Santonocito, D. ^{[5
]}

Zhang, Y. X. ^{[13
]}

机构：

[1] Ist Nazl Fis Nucl, Sez Catania, 64 Via Santa Sofia, I-95123 Catania, Italy

[2] Natl Superconducting Cyclotron Lab, E Lansing, MI 48824 USA

[3] Dept Phys & Astron, E Lansing, MI 48824 USA

[4] Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China

[5] INFN, Lab Nazl Sud, I-95123 Catania, Italy

[6] Univ Catania, Dipartimento Fis & Astron, I-95123 Catania, Italy

[7] PNPI, Gatchina, Leningrad Dist, Russia

[8] Peking Univ, Beijing, Peoples R China

[9] Ctr Siciliano Fis Nucl & Struttura Mat, I-95123 Catania, Italy

[10] Univ Texas Austin, Austin, TX 78705 USA

[11] Michigan State Univ, Joint Inst Nucl Astrophys, E Lansing, MI 48824 USA

[12] Ist Nazl Fis Nucl, Sez Firenze, I-50019 Sesto Fiorentino, FI, Italy

[13] China Inst Atom Energy, Beijing, Peoples R China

来源：

INTERNATIONAL NUCLEAR PHYSICS CONFERENCE 2010 (INPC2010): NUCLEAR REACTIONS | 2011年 / 312卷

关键词：

NEUTRON; PHYSICS;

D O I：

10.1088/1742-6596/312/8/082044

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：

Results from the study of isospin asymmetric Sn+Sn collisions at E/A=35 MeV and 50 MeV, collected with the LASSA and the Chimera detectors at the NSCL of MSU, respectively, are shown. The diffusion of neutrons and protons between projectiles and targets with different N/Z-asymmetries is studied by means of imbalance ratios measurements. The obtained results and their comparison to transport model simulations provide constraints on the density dependence of the symmetry energy. The systematic study of these phenomena at different impact parameters also allows us to explore isospin transparency and stopping phenomena in more central collisions, with important implications about the attainment of chemical equilibrium in central collisions at 35 MeV/nucleon.

引用

页数：7

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