Production cross sections of superheavy nuclei based on dinuclear system model

被引：122

作者：

Feng, Zhao-Qing ^{[1
]}

Jin, Gen-Ming

Fu, Fen

Li, Jun-Qing

机构：

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

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

[3] Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China

来源：

NUCLEAR PHYSICS A | 2006年 / 771卷

基金：

中国国家自然科学基金;

关键词：

D O I：

10.1016/j.nuclphysa.2006.03.002

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 barrier distribution function method is introduced in the dinuclear system model in the calculation of the transmission probability, which is the first stage in the synthesis of superheavy nuclei. Dynamical deformation and averaging collision orientations are considered in the calculation of the fusion probability by solving master equation numerically. Survival probability with respect to xn evaporation channel (x = 1-5) in the de-excitation process of the thermal compound nucleus is calculated, in which the level density of the Fermi-gas model is used. Production cross sections of a series of superheavy nuclei formed in the reactions taken magic and deformed nuclei as target in Ca-48 induced reactions are studied systematically. The calculated results are in good agreement with available experimental data. Isotopic dependence of the production cross sections in the reactions Ca-48 + Pu is analyzed. (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：50 / 67

页数：18

共 45 条

[21]

IGNATYUK AV, 1979, SOV J NUCL PHYS+, V29, P450

[22] Fission barriers of superheavy nuclei [J].

Itkis, MG ;

Oganessian, YT ;

Zagrebaev, VI .

PHYSICAL REVIEW C, 2002, 65 (04) :7

[23] A SCHEMATIC MODEL FOR (P, XN) CROSS SECTIONS IN HEAVY ELEMENTS [J].

JACKSON, JD .

CANADIAN JOURNAL OF PHYSICS, 1956, 34 (08) :767-779

[24] ANTI-CORRELATED ANGULAR-MOMENTUM DISTRIBUTIONS IN HEAVY-ION COLLISIONS [J].

LI, JQ ;

TANG, XT ;

WOLSCHIN, G .

PHYSICS LETTERS B, 1981, 105 (2-3) :107-110

[25] DISTRIBUTION OF THE DISSIPATED ANGULAR-MOMENTUM IN HEAVY-ION COLLISIONS [J].

LI, JQ ;

WOLSCHIN, G .

PHYSICAL REVIEW C, 1983, 27 (02) :590-601

[26] Fusion probability in heavy-ion collisions by a dinuclear-system model [J].

Li, W ;

Wang, N ;

Li, JF ;

Xu, H ;

Zuo, W ;

Zhao, E ;

Li, JQ ;

Scheid, W .

EUROPHYSICS LETTERS, 2003, 64 (06) :750-756

[27]

Li WF, 2004, CHINESE PHYS LETT, V21, P636, DOI 10.1088/0256-307X/21/4/013

[28] NUCLEAR GROUND-STATE MASSES AND DEFORMATIONS [J].

MOLLER, P ;

NIX, JR ;

MYERS, WD ;

SWIATECKI, WJ .

ATOMIC DATA AND NUCLEAR DATA TABLES, 1995, 59 (02) :185-381

[29] Experiment on the synthesis of element 113 in the reaction 209Bi(70Zn,n)278113 [J].

Morita, K ;

Morimoto, K ;

Kaji, D ;

Akiyama, T ;

Goto, S ;

Haba, H ;

Ideguchi, E ;

Kanungo, R ;

Katori, K ;

Koura, H ;

Kudo, H ;

Ohnishi, T ;

Ozawa, A ;

Suda, T ;

Sueki, K ;

Xu, HS ;

Yamaguchi, T ;

Yoneda, A ;

Yoshida, A ;

Zhao, YL .

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 2004, 73 (10) :2593-2596

[30] TRANSPORT PHENOMENA IN MULTI-NUCLEON TRANSFER-REACTIONS [J].

NORENBERG, W .

PHYSICS LETTERS B, 1974, B 52 (03) :289-292

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