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Behavior of 6Li + 144Sm elastic and inelastic angular distributions in the region of the Coulomb barrier

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Abstract

Elastic and inelastic scattering angular distributions (ADs) for the 6Li + 144Sm system in the 21–45 MeV energy range are analyzed with a Woods-Saxon phenomenological and two microscopic optical potentials, with one derived from the São Paulo formulation and the other from cluster folding of realistic alpha and deuteron potentials. Energy-dependent real, JV, and imaginary, JW, potential volume integrals are extracted from each potential system. It is shown that their variation in the region of the Coulomb barrier displays the normal threshold anomaly of strong coupling between the real and imaginary potentials. The reduced energy dependence on the extracted reduced reaction cross sections for the 6Li + 144Sm system is presented and compared to the calculated one using Wong’s formula. The strength and energy dependence of the inelastic ADs are reasonably described using the adopted potentials within the framework of the coupled channels method.

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Data Availability

This manuscript has associated data in a data repository. [Authors’ comment: The experimental data used in the present study was published by Figueira et al. [14], Clark et al. [15], and Woodard et al. [16]].

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Acknowledgements

This research has been funded by the Science Committee of the Ministry of Science and Higher Education of the Republic of Kazakhstan (Grant No. AP19175991). A.A.Ibraheem express his appreciation to the Deanship of Scientific Research at King Khalid University, Saudi Arabia, for funding this work through research groups program under grant of number R.G.P.2/4/44. Sh. H. would like to thank Prof. K. Rusek for fruitful discussions.

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Authors and Affiliations

  1. L. N. Gumilyov, Eurasian National University, Astana, Kazakhstan

    Zh. Kurmanaliyev & B. Mauyey

  2. Institute of Nuclear Physics, Almaty, Kazakhstan

    Zh. Kurmanaliyev & B. Mauyey

  3. Physics Department, King Khalid University, Abha, Saudi Arabia

    Awad A. Ibraheem

  4. Department of Physics, Florida State University, Tallahassee, FL, 32306, USA

    K. W. Kemper

  5. Faculty of Science, Tanta University, Tanta, Egypt

    Sh. Hamada

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  1. Zh. Kurmanaliyev
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  2. B. Mauyey
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  3. Awad A. Ibraheem
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  4. K. W. Kemper
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  5. Sh. Hamada
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Correspondence to Sh. Hamada.

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Communicated by Alexis Diaz-Torres

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Kurmanaliyev, Z., Mauyey, B., Ibraheem, A.A. et al. Behavior of 6Li + 144Sm elastic and inelastic angular distributions in the region of the Coulomb barrier. Eur. Phys. J. A 59, 282 (2023). https://doi.org/10.1140/epja/s10050-023-01191-5

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