Unexpected isotopic trends in synthesis of superheavy nuclei

被引：63
作者：
Adamian, GG [1 ]
Antonenko, NV
Scheid, W
机构：
[1] Joint Inst Nucl Res, Dubna 141980, Russia
[2] Uzbek Acad Sci, Inst Nucl Phys, Tashkent 702132, Uzbekistan
[3] Univ Giessen, Inst Theoret Phys, D-35392 Giessen, Germany
来源：
PHYSICAL REVIEW C | 2004年 / 69卷 / 01期
关键词：
D O I：
10.1103/PhysRevC.69.014607
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 production cross section for the heaviest nuclei in the Ca-48 induced hot fusion-evaporation reactions is shown to depend on the isotopic composition of actinide target. It is analyzed within the dinuclear system model for compound nucleus formation. In the actinide-based reactions most neutron-rich targets available for the experiment lead to smaller cross sections. New optimal reactions for the synthesis of superheavy nuclei are suggested.
引用
收藏
页码：146071 / 146076
页数：6
相关论文
共 45 条
[1]   Effect of structural forbiddenness in fusion of heavy nuclei [J].
Adamian, GG ;
Antonenko, NV ;
Tchuvil'sky, YM .
PHYSICS LETTERS B, 1999, 451 (3-4) :289-295
[2]   Problems in description of fusion of heavy nuclei in the two-center shell model approach [J].
Adamian, GG ;
Antonenko, NV ;
Ivanova, SP ;
Scheid, W .
NUCLEAR PHYSICS A, 1999, 646 (01) :29-52
[3]   Fusion cross sections for superheavy nuclei in the dinuclear system concept [J].
Adamian, GG ;
Antonenko, NV ;
Scheid, W ;
Volkov, VV .
NUCLEAR PHYSICS A, 1998, 633 (03) :409-420
[4]   Characteristics of quasifission products within the dinuclear system model [J].
Adamian, GG ;
Antonenko, NV ;
Scheid, W .
PHYSICAL REVIEW C, 2003, 68 (03) :346011-3460118
[5]   Isotopic trends in the production of superheavy nuclei in cold fusion reactions [J].
Adamian, GG ;
Antonenko, NV ;
Scheid, W .
PHYSICAL REVIEW C, 2004, 69 (01) :116011-116015
[6]   Analysis of survival probability of superheavy nuclei [J].
Adamian, GG ;
Antonenko, NV ;
Ivanova, SP ;
Scheid, W .
PHYSICAL REVIEW C, 2000, 62 (06) :6
[7]   Dynamical restriction for a growing neck due to mass parameters in a dinuclear system [J].
Adamian, GG ;
Antonenko, NV ;
Diaz-Torres, A ;
Scheid, W .
NUCLEAR PHYSICS A, 2000, 671 (1-4) :233-254
[8]   Treatment of competition between complete fusion and quasifission in collisions of heavy nuclei [J].
Adamian, GG ;
Antonenko, NV ;
Scheid, W ;
Volkov, VV .
NUCLEAR PHYSICS A, 1997, 627 (02) :361-378
[9]   Model of competition between fusion and quasifission in reactions with heavy nuclei [J].
Adamian, GG ;
Antonenko, NV ;
Scheid, W .
NUCLEAR PHYSICS A, 1997, 618 (1-2) :176-198
[10]   Isotopic dependence of fusion cross sections in reactions with heavy nuclei [J].
Adamian, GG ;
Antonenko, NV ;
Scheid, W .
NUCLEAR PHYSICS A, 2000, 678 (1-2) :24-38
12345