Effects of neutron richness on the behavior of nuclear systems at intermediate energies

被引：40

作者：

Cardella, G. ^{[1
]}

Giuliani, G. ^{[1
,3
]}

Lombardo, I. ^{[4
,5
]}

Papa, M. ^{[1
]}

Acosta, L. ^{[2
]}

Agodi, C. ^{[2
]}

Amorini, F. ^{[2
]}

Anzalone, A. ^{[2
]}

Auditore, L. ^{[6
,7
]}

Berceanu, I. ^{[10
]}

Cavallaro, S. ^{[2
,3
]}

Chatterjee, M. B. ^{[11
]}

De Filippo, E. ^{[1
]}

Geraci, E. ^{[1
,3
]}

Grassi, L. ^{[1
,3
]}

Han, J. ^{[2
]}

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

Loria, D. ^{[6
,7
]}

Lanzalone, G. ^{[2
,8
]}

Maiolino, C. ^{[2
]}

Minniti, T. ^{[6
,7
]}

Pagano, A. ^{[1
]}

Pirrone, S. ^{[1
]}

Politi, G. ^{[1
,3
]}

Porto, F. ^{[2
,3
]}

Rizzo, F. ^{[2
,3
]}

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

Santoro, S. ^{[6
]}

Trifiro, A. ^{[6
,7
]}

Trimarchi, M. ^{[6
,7
]}

Verde, G. ^{[1
]}

Vigilante, M. ^{[4
,5
]}

机构：

[1] Ist Nazl Fis Nucl, Sez Catania, I-95123 Catania, Italy

[2] Ist Nazl Fis Nucl, Lab Nazl Sud, Catania, Italy

[3] Univ Catania, Dip Fis & Astron, Catania, Italy

[4] Univ Naples Federico II, Dip Sci Fis, Naples, Italy

[5] Ist Nazl Fis Nucl, Sez Napoli, Naples, Italy

[6] Univ Messina, Dip Fis, Messina, Italy

[7] Ist Nazl Fis Nucl, Gr Coll, Messina, Italy

[8] Univ Kore, Fac Ingn & Architettura, Enna, Italy

[9] Ctr Siciliano Fis Nucl & Strut Mat, Catania, Italy

[10] Inst Phys & Nucl Engn, Bucharest, Romania

[11] Saha Inst Nucl Phys, Kolkata, India

来源：

PHYSICAL REVIEW C | 2012年 / 85卷 / 06期

关键词：

INCOMPLETE FUSION; PARTICLE-EMISSION; MASS; MULTIFRAGMENTATION; COLLISIONS; IDENTIFICATION; INSTABILITY; FRAGMENTS; SYMMETRY; ONSET;

D O I：

10.1103/PhysRevC.85.064609

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：

We discuss results concerning the behavior of hot nuclear sources formed in Ca-40,Ca-48 + Ca-40,Ca-48 reactions at 25 MeV/nucleon. A correlation between the neutron-to-proton ratio of the total systems and heavy residue production is found. This correlation underlines the strong role played by the neutron-to-proton ratio degree of freedom on the behavior of hot nuclei at intermediate energies. Comparisons of our data with Constrained Molecular Dynamics calculations confirm that a moderately stiff behavior of the symmetry potential must be used to reproduce experimental data. These findings open the way for future investigations with exotic beams at radioactive ion beam facilities.

引用

页数：5

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