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A theoretical study on quasifission and fusion–fission processes in heavy-ion collisions

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Abstract

The stochastic mean-field (SMF) technique beyond the time-dependent-Hartree-Fock approach is used to explore the primary mass yields of quasifission fragments in the \({}^{58}\text {Fe}+{}^{208}\text {Pb}\) reaction at the bombarding energy \(E_{\text {c.m.}}\) = 238.5 MeV, \({}^{50}\text {Ti}+{}^{208}\text {Pb}\) reaction at \(E_{\text {c.m.}}\) = 237 MeV, and in the \({}^{36}\text {S}+{}^{238}\text {U}\) reaction at \(E_{\text {c.m.}}\) = 151.1 MeV. A statistical de-excitation model, GEMINI++ code, is used for calculating the primary mass yields of fusion–fission fragments after the de-excitation processes of primary products in the same systems. The obtained results are compared with available experimental data. Analysis of SMF and GEMINI++ calculations exhibit a good agreement with the corresponding experimental results, signifying the reliability of our approach in describing the fragment mass yields for the specific reaction systems.

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

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Acknowledgements

S.A. gratefully acknowledges Middle East Technical University for warm hospitality extended to him during his visits. S.A. also gratefully acknowledges F. Ayik for continuous support and encouragement. This work is supported in part by US DOE Grants Nos. DE-SC0015513 and DE-SC0013847. This work is supported in part by TUBITAK Grant No. 122F150. The numerical calculations reported in this paper were partially performed at TUBITAK ULAKBIM, High Performance and Grid Computing Center (TRUBA resources).

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Authors and Affiliations

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

    A. Kayaalp, S. E. Ocal, B. Yaprakli, M. Arik & O. Yilmaz

  2. Physics Department, Tennessee Technological University, Cookeville, TN, 38505, USA

    S. Ayik

  3. Department of Physics and Astronomy, Vanderbilt University, Nashville, TN, 37235, USA

    A. S. Umar

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Correspondence to S. Ayik.

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Communicated by Cedric Simenel.

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Kayaalp, A., Ocal, S.E., Yaprakli, B. et al. A theoretical study on quasifission and fusion–fission processes in heavy-ion collisions. Eur. Phys. J. A 60, 79 (2024). https://doi.org/10.1140/epja/s10050-024-01303-9

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