new dissipative non-markovian model treatment of capture: the need for precise above-barrier cross sections
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ID: 199375
2013
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Abstract
We performed quantitative theoretical analysis of the high precision data on the fusion excitation function in the reaction 16O + 144Sm involving spherical nuclei. For this purpose the model is developed in which the collision process is described by the stochastic dynamical equations with the retarding friction and colored noise. The friction force is supposed to be proportional to the squared derivative of nucleus-nucleus interaction potential. The latter is calculated within the framework of the double folding approach with the density-dependent M3Y NN-forces. Varying the radial dissipation strength KR and the matter diffuseness of 144Sm we reach χ2 per point equal to 5.4. However the values of KR and the friction retardation time τC appear to be strongly correlated. More high precision data are needed to make more definite conclusions about the values of KR and τC.
| Reference Key |
maria2013epjnew
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| Authors | ;Chushnyakova Maria;Gontchar Igor |
| Journal | utilitas mathematica |
| Year | 2013 |
| DOI |
10.1051/epjconf/20136302008
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