Importance of shell correction energy on synthesis of superheavy nuclei

被引：7

作者：

Zhang, F. S. ^{[1
]}

Feng, Z. Q.

Jin, G. M.

机构：

[1] Beijing Normal Univ, Key Lab Beam Technol & Mat Modificat, Minist Educ, Inst Low Energy Nucl Phys, Beijing 100875, Peoples R China

[2] Beijing Radiat Ctr, Beijing 100875, Peoples R China

[3] Ctr Theoret Nucl Phys, Natl Lab Heavy Ion Accelerator Lanzhou, Lanzhou 730000, Peoples R China

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

来源：

INTERNATIONAL JOURNAL OF MODERN PHYSICS E-NUCLEAR PHYSICS | 2006年 / 15卷 / 07期

关键词：

D O I：

10.1142/S0218301306005174

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：

Based on the improved isospin dependent molecular dynamics model in which the shell correction energy of the system is calculated by using deformed two-center shell model and the surface energy of the system is improved by introducing a switch function that combines the surface energies of projectile and target with the one of the compound nucleus. The importance of shell correction energy on synthesis of superheavy nuclei is studied systematically. For reaction systems induced by of O-16 and C-40,C-48 at low energies near Coulomb barrier, it is found that the calculated fusion cross sections show a strong enhancement for the neutron-rich combinations, which can regenerate the experimental data quantitatively.

引用

页码：1601 / 1611

页数：11

共 39 条

[1] A new mechanism for synthesis of superheavy elements [J].

Abe, Y ;

Aritomo, Y ;

Wada, T ;

Ohta, M .

JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS, 1997, 23 (10) :1275-1284

[2] QUANTUM MOLECULAR-DYNAMICS - A DYNAMIC MICROSCOPIC N-BODY APPROACH TO INVESTIGATE FRAGMENT FORMATION AND THE NUCLEAR-EQUATION OF STATE IN HEAVY-ION COLLISIONS [J].

AICHELIN, J .

PHYSICS REPORTS-REVIEW SECTION OF PHYSICS LETTERS, 1991, 202 (5-6) :233-360

[3] SELFCONSISTENT SEMICLASSICAL DESCRIPTION OF AVERAGE NUCLEAR PROPERTIES - A LINK BETWEEN MICROSCOPIC AND MACROSCOPIC MODELS [J].

BRACK, M ;

GUET, C ;

HAKANSSON, HB .

PHYSICS REPORTS-REVIEW SECTION OF PHYSICS LETTERS, 1985, 123 (05) :275-364

[4] Importance of entrance channel dynamics on heavy element formation [J].

Dasgupta, M ;

Hinde, DJ .

NUCLEAR PHYSICS A, 2004, 734 :148-155

[5] Formation of superheavy elements in cold fusion reactions [J].

Denisov, VY ;

Hofmann, S .

PHYSICAL REVIEW C, 2000, 61 (03) :15

[6]

DOSSO CH, 1994, PHYS REV C, V50, pR12

[7] Improved isospin dependent quantum molecular dynamics model and its application to fusion reactions near Coulomb barrier [J].

Feng, ZQ ;

Zhang, FS ;

Jin, GM ;

Huang, X .

NUCLEAR PHYSICS A, 2005, 750 (2-4) :232-244

[8]

Feng ZQ, 2005, CHINESE PHYS LETT, V22, P3040, DOI 10.1088/0256-307X/22/12/015

[9] Shell effects in cold fusion reactions -: art. no. 054314 [J].

Gherghescu, RA ;

Greiner, W ;

Münzenberg, G .

PHYSICAL REVIEW C, 2003, 68 (05) :543141-543149

[10] Deformed two-center shell model [J].

Gherghescu, RA .

PHYSICAL REVIEW C, 2003, 67 (01) :143091-1430920

← 1 2 3 4 →