在双核系统框架下,通过数值法解主方程计算了双核间的核子跃迁全熔合几率.两碰撞核内部激发能由相对运动能损提供,因此能够将核子转移过程与相对运动耦合起来.对一些以Pb为靶的形成超重核的冷熔合反应,计算了最佳激发能、形成双核系统的俘获截面、复合核形成几率及存活几率等,所得到的形成超重核蒸发剩余截面与已知实验值符合较好.
参考文献
| [1] | Smolanczuk R. Production Mechanism of Superheavy Nuclei in Cold Fusion Reactions [J]. Phys Rev, 1999, C59:2634. |
| [2] | Shen Caiwan, Kosenko Grigori, Abe Yasuhisa. Two-step Model of Fusion for the Synthesis of Superheavy Elements [J]. Phys Rev, 2002, 59: 061602(R). |
| [3] | Frobrich P. Fusion and Capture of Heavy Ions above the Barriers: Analysis of experimental data with the surface friction model [J]. Phys Rep, 1984, 116: 337. |
| [4] | Maten J, Frobrich P. Langevin Description of Heavy Ion Collisions with the Surface Friction Model [J]. Nucl Phys, 1992,A545: 854. |
| [5] | Adamian G G, Antonenko N V, Scheid W. Model of Competition between Fusion and Quasi-fission in Reactions with Heavy Nuclei [J]. Nucl Phys, 1997, A618:176. |
| [6] | Adamian G G, Antonenko N V, Scheid W. Isotopic Dependence of Fusion Cross-sections in Reactions with Heavy Nuclei [J]. Nucl Phys, 2000, A678:24. |
| [7] | Adamian G G, Antonenko N V, Scheid W, et al. Treatment of Competition between Complete Fusion and Quasifission in Collisions of Heavy Nuclei [J]. Nucl Phys, 1997, A627:361. |
| [8] | Adamian G G, Antonenko N V, Scheid W, et al. Fusion Cross Sections for Superheavy Nuclei in the Dinuclear System Concept [J]. Nucl Phys, 1998, A633: 409. |
| [9] | Adamian G G, Antonenko N V, Cherepanov E A, etal. Dinuclear System Model for Dynamics and Structure [C]. A Talk Given at the Exon-conference at Baikal-lake; Siberia, in July 2001. |
| [10] | Weidenmuller H A. Transport Theories of Heavy-ion Reazctions [J]. Prog Part Nucl Phys, 1980, 3:49. |
| [11] | Ayik S, Schuermann B, Noerenberg W. Microscopic Transport Theory of Heavy-ion Collisions Ⅰ . Basic Relations and Transport Coefficients for Symmetric Fragmentation [J]. Z Phys, 1976, A277: 299. |
| [12] | Ayik S, Schuermann B, Noerenberg W. Microscopic Transport Theory of Heavy-ion Collisions Ⅱ. Transport Coefficients for Asymmetric Fragmentation and Generalized Einstein Relations [J]. Z Phys, 1976, A279: 145. |
| [13] | Schuermann B, Noerenberg W, Simbel M. Microscopic Transport Theory of Heavy-ion Collisions Ⅲ. Effects of Fragment Shell Structure on Mass Transfer [J]. Z Phys, 1978, A286:263. |
| [14] | Noerenberg W. Transport Phenomena in Multi- nucleon Transfer Reactions [J]. Phys Lett, 1974, B53: 289. |
| [15] | Smolanczuk R. Production Mechanism of Superheavy Nuclei in Cold Fusion Reactions [J]. Phys Rev, 1999, C59:2634. |
| [16] | Wang Nan, Zhao Enguang, Li Jianfeng, et al.Influence of Nuclear Deformation on the Potential Energy Surface in Di-nuclear Model, Submitted to Chin Phys Lett, 2003. |
| [17] | Wang Nan, Zhao Enguang, Li Jianfeng, et al.Influence of Nuclear Deformation on the Potential Energy Surface in Di-nuclear Model, Submitted to Chin Phys Lett, 2003. |
| [18] | Li Jianfeng, Xu Hushan, Li Wenfei, et al. Particle Exchange Potential Energy in Fusion Reactions [C]. CCAST-WL Workshop Series, 2002, 145: 45. |
| [19] | Moller P, Nix R. Nuclear Mass[J]. Atomic Data and Nuclear Data Tables, 1995, 59: 2. |
| [20] | 李剑锋,徐瑚珊,李文飞等.双核系统核子转移驱动势与复合核的最佳激发能[J].原子核物理评论,2003,20(2):160. |
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