Isotope Dependence of Superheavy Nucleus Formation Cross Section

Chin. Phys. Lett.

2006, Vol. 23

Issue (6): 1437-1440 DOI:

Original Articles

Isotope Dependence of Superheavy Nucleus Formation Cross Section

LIU Zu-Hua^1,2;BAO Jing-Dong^2,3

¹China Institute of Atomic Energy, Beijing 102413 ²Key Laboratory of Beam Technology and Material Modification of Ministry of Education, Beijing Normal University, Beijing 100875 ³Department of Physics, Beijing Normal University, Beijing 100875

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LIU Zu-Hua, BAO Jing-Dong 2006 Chin. Phys. Lett. 23 1437-1440

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Abstract The dynamical process in the superheavy nucleus synthesis is studied on the basis of the two-dimensional Smoluchowski equation. Special attention is paid to the isotope dependence of the cross section for the superheavy nucleus formation by means of making a comparison among the reaction systems of ⁵⁴Fe + ²⁰⁴Pb, ⁵⁶Fe + ²⁰⁶Pb, and ⁵⁸Fe + ²⁰⁸Pb. It is found by this comparison that the formation cross section is very sensitive to the conditional saddle-point height and the neutron separation energy of the compound nucleus. Reaction systems with lower height of conditional saddle-point and smaller neutron separation energy are more favourable for the synthesis of the superheavy nucleus.

Keywords: 25.70.Jj 25.70.Gh

Published: 01 June 2006

PACS:	25.70.Jj	(Fusion and fusion-fission reactions)
	25.70.Gh	(Compound nucleus)

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https://cpl.iphy.ac.cn/ OR https://cpl.iphy.ac.cn/Y2006/V23/I6/01437

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