v 1 2 0 O ct 2 00 4 Multi - deformed Configurations and Shape Coexistence for Superheavy Elements ∗
نویسندگان
چکیده
We use the considered axial deformed relativistic mean field theory to perform system-atical calculations for Z = 112 and 104 isotopic chains with force parameters NL3, NL-SH and NL-Z2 sets. Three deformed chains (oblate, moderate prolate and super-deformed chain) are found for Z = 112 and 104 isotopic chains. It is found that there is a chain of super-deformed nuclei which can increase the stability of superheavy nuclei in the Z = 112 isotopic chain. Shape coexistence is found for Z = 112, 104 isotopic chain and the position is defined. For moderate prolate deformed chains of Z = 112 and 104, there is shell closure at N = 184 for moderate prolate deformed chain. For oblate deformed chain of Z = 112, the shell closure appears around at N = 176. For super-deformed chains of Z = 112 and 104, the position of shell closure have strong parameter dependence. There is shell anomalism for oblate or superdeformed nuclei.
منابع مشابه
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