Orientation windows in the cold synthesis and decay of heavy elements |
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Authors: | Ş Mişicu |
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Institution: | 1. Institut für Theoretische Physik, J.W. Goethe Universit?t, Frankfurt am Main, Germany
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Abstract: | Due to the multipolar ground state nuclear deformations (β 2, β 3, β 4,...) the cold synthesis of heavy and superheavy elements is dependent on the mutual orientation of target and projectile. When going from lower bombarding energies to higher bombarding energies, windows for orientations are occurring and others are disappearing. The cold fission is also strongly dependent on the deformation but is more selective in respect to orientation of fragments at scission. The measured cold fission yields of 252Cf show that only one orientation window is active. I propose a qualitative receipt based on the orientation windows of the driving potential which serves as a guidance in understanding the fission and quasifission mass distributions in the synthesis of heavy and superheavy elements. |
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