Nuclear Potential and Fusion Cross Sections for Synthesizing Super-Heavy Elements in Di-nuclear Systems
WANG Nan1, LI Jun-Qing2,4, ZHAO En-Guang3,4,5, FENG Zhao-Qing2.4
1College of Physics, Shenzhen University, Shenzhen 5180602Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou7300003Institute of Theoretical Physics, Chinese Academy of Sciences, Beijing 1000804Center of Theoretical Nuclear Physics, National Laboratory of Heavy Ion Accelerator, Lanzhou 7300005School of Physics, Peking University, Beijing 100871
Nuclear Potential and Fusion Cross Sections for Synthesizing Super-Heavy Elements in Di-nuclear Systems
WANG Nan1;LI Jun-Qing2,4;ZHAO En-Guang3,4,5;FENG Zhao-Qing2.4
1College of Physics, Shenzhen University, Shenzhen 5180602Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou7300003Institute of Theoretical Physics, Chinese Academy of Sciences, Beijing 1000804Center of Theoretical Nuclear Physics, National Laboratory of Heavy Ion Accelerator, Lanzhou 7300005School of Physics, Peking University, Beijing 100871
摘要A double folding method with simplified Skyrme-type nucleon--nucleon interaction is used to calculate the nuclear interaction potential between two nuclei. The calculation is performed in tip-to-tip orientation of the two nuclei if they are deformed. Based on this method, the potential energy surfaces, the fusion probabilities and the evaporation residue cross sections for some cold fusion reactions leading to super-heavy elements within di-nuclear system model are evaluated. It is indicated that after the improvement, the exponential decreasing systematics of the fusion probability with increasing charge number of projectile on the Pb based target become better and the evaporation residue cross sections are in better agreement with the experimental data.
Abstract：A double folding method with simplified Skyrme-type nucleon--nucleon interaction is used to calculate the nuclear interaction potential between two nuclei. The calculation is performed in tip-to-tip orientation of the two nuclei if they are deformed. Based on this method, the potential energy surfaces, the fusion probabilities and the evaporation residue cross sections for some cold fusion reactions leading to super-heavy elements within di-nuclear system model are evaluated. It is indicated that after the improvement, the exponential decreasing systematics of the fusion probability with increasing charge number of projectile on the Pb based target become better and the evaporation residue cross sections are in better agreement with the experimental data.
WANG Nan;LI Jun-Qing;ZHAO En-Guang;;FENG Zhao-Qing.. Nuclear Potential and Fusion Cross Sections for Synthesizing Super-Heavy Elements in Di-nuclear Systems[J]. 中国物理快报, 2007, 24(8): 2219-2222.
WANG Nan, LI Jun-Qing, ZHAO En-Guang, , FENG Zhao-Qing.. Nuclear Potential and Fusion Cross Sections for Synthesizing Super-Heavy Elements in Di-nuclear Systems. Chin. Phys. Lett., 2007, 24(8): 2219-2222.
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