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Quasi-fission and fusion-fission reactions in \(^{48}\hbox {Ca}+^{208}\hbox {Pb}\) collisions at \(\hbox {E}_{\mathrm{c.m.}}=190\ \hbox {MeV}\)

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Abstract

The yields of quasifission fragments in the \(^{48}\hbox {Ca}+^{208}\hbox {Pb}\) reaction at \(\hbox {E}_{\mathrm{c.m.}}=190\ \hbox {MeV}\) are investigated in the framework of the stochastic mean field (SMF) approach based on the Skyrme-TDHF calculations. A method which combines the microscopic time-dependent Hartree–Fock (TDHF) theory with a statistical de-excitation model, GEMINI++, is used for calculating the yields of fusion-fission fragments after de-excitation processes of primary reaction products which is assumed to be dominated by neutron emission in the present system. Results are compared with available experimental data. It is shown that including secondary de-excitation process by particle emission gives a good agreement with the experimental data.

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Data Availability Statement

This manuscript has no associated data or the data will not be deposited. [Authors’ comment: This is a theoretical investigation.]

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Acknowledgements

The authors are grateful to S. Ayik for a careful reading of the manuscript and for useful discussions. We also thank A. S. Umar for his helpful advices. This work is supported by TUBITAK Grant No. 117F109.

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Authors and Affiliations

  1. Physics Department, Middle East Technical University, 06800, Ankara, Turkey

    O. Yilmaz & G. Turan

  2. Physics Department, Faculty of Sciences, Ankara University, 06100, Ankara, Turkey

    B. Yilmaz

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  1. O. Yilmaz
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  2. G. Turan
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  3. B. Yilmaz
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Correspondence to O. Yilmaz.

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Communicated by C. Simenel.

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Yilmaz, O., Turan, G. & Yilmaz, B. Quasi-fission and fusion-fission reactions in \(^{48}\hbox {Ca}+^{208}\hbox {Pb}\) collisions at \(\hbox {E}_{\mathrm{c.m.}}=190\ \hbox {MeV}\). Eur. Phys. J. A 56, 37 (2020). https://doi.org/10.1140/epja/s10050-020-00053-8

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