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The Deformations Energy and Barrier Height of Super Heavy Nuclei
Author(s) -
Osman Ahmed,
AbdelAziz S. S.
Publication year - 1991
Publication title -
annalen der physik
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.009
H-Index - 68
eISSN - 1521-3889
pISSN - 0003-3804
DOI - 10.1002/andp.19915030403
Subject(s) - isobar , saddle point , coulomb barrier , saddle , fission , physics , atomic physics , work (physics) , heavy ion , semi empirical mass formula , liquid drop , drop (telecommunication) , coulomb , ion , nuclear physics , materials science , thermodynamics , nucleon , mechanics , geometry , neutron , quantum mechanics , mathematical optimization , telecommunications , mathematics , computer science , electron
The liquid drop energy and barrier height are calculated for the super heavy nuclei 250 X and 251 X, resulting from heavy ion reactions, at finite temperatures. Our calculations are compared with both the idealized nuclei 250 Es and 251 Es (being isobars of 250 X and 251 X) and that obtained by previous work. The main reason of the descrepancies between the present calculated values of the barrier height and the fissility parameters and those obtained by others are found to be mainly due to the important role of Coulomb energy over the surface energy for heavy nuclei. It has been found that the temperature has the effect lowering the fission barrier and shifting the saddle point to lower values.