Approximating the spin distributions in capture reactions between spherical nuclei

Abstract

Twenty years ago an approximation for the spin distribution of the dinuclear systems formed in capture reactions with heavy ions was proposed. This approximation is used nowadays. However, since that time the experimental errors of the measured capture cross sections were reduced drastically. We show that the accuracy of the old spin distribution approximation is certainly out of date and propose a new approximation built on the dynamical modeling of the capture process. Results suggest that this new approximation might be useful especially for performing modeling of decay of excited dinuclear systems (compound nuclei) formed during heavy-ion collisions.

Original language	English
Pages (from-to)	255-264
Number of pages	10
Journal	Nuclear Physics A
Volume	941
DOIs	https://doi.org/10.1016/j.nuclphysa.2015.06.019
Publication status	Published - 1 Sep 2015

Keywords

Heavy-ion fusion
Spin distribution
Transmission coefficient

ASJC Scopus subject areas

Nuclear and High Energy Physics

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10.1016/j.nuclphysa.2015.06.019

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Chushnyakova, M. V., & Gontchar, I. I. (2015). Approximating the spin distributions in capture reactions between spherical nuclei. Nuclear Physics A, 941, 255-264. https://doi.org/10.1016/j.nuclphysa.2015.06.019

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AB - Twenty years ago an approximation for the spin distribution of the dinuclear systems formed in capture reactions with heavy ions was proposed. This approximation is used nowadays. However, since that time the experimental errors of the measured capture cross sections were reduced drastically. We show that the accuracy of the old spin distribution approximation is certainly out of date and propose a new approximation built on the dynamical modeling of the capture process. Results suggest that this new approximation might be useful especially for performing modeling of decay of excited dinuclear systems (compound nuclei) formed during heavy-ion collisions.

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