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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 |
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| Cite this article: |
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WANG Nan, LI Jun-Qing, ZHAO En-Guang et al 2007 Chin. Phys. Lett. 24 2219-2222 |
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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.
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25.70.Jj
24.10.-i
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Received: 14 May 2007
Published: 25 July 2007
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| PACS: |
25.70.Jj
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(Fusion and fusion-fission reactions)
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24.10.-i
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(Nuclear reaction models and methods)
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[1] Hofmann S and M\"{unzengerg G 2000 Rev. Mod. Phys. 72 733 Morita K,Morimoto K,Kaji D et al 2001 J. Phys. Soc. Jpn. 10 5
[2] Oganessian Y T, Utyonkov V K, Labanov Y V et al 2004 Phys.Rev. C 69 021601(R) Oganessian Y T, Utyonkov V K, Labanov Y V et al 2006 Phys. Rev. C 74 044602
[3] Aritomo et al 1999 Phys. Rev. C 59 796
[4] Zagrebaev et al 2001 Phys. Rev. C 65 014607
[5] Bjornholm S and Swiatecki W J 1982 Nucl. Phys. A 391 471
[6] Adamian G G, Antonenko N V and Scheid W 2000 Nucl. Phys. A 678 24
[7] Li W F, Wang N, Li J F et al 2003 Europhys. Lett. 64 750 Li W F, Wang N, Jia F et al 2006 J. Phys. G 32 1143
[8] Wong C Y 1973 Phys. Rev. Lett. 31 766
[9] Li Q F, Zuo W, Li W F et al 2005 Eur. Phys. J. A 24 223
[10] M\"{oller P and Nix R 1995 At. Data Nucl. Data Tables 59 2 M\"{oller P and Nix R 1997 At. Data Nucl. Data Tables 66 2
[11] Jia F, Xu H S, Huang T H et al 2005 Chin. Phys. Lett. 22 1374
[12] Adamian G G, Antonenko N V, Ivanova S P and Scheid W 2000 Phys. Rev. C 62 064303 |
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