https://doi.org/10.1140/epja/s10050-023-01191-5
Regular Article - Theoretical Physics
Behavior of 6Li + 144Sm elastic and inelastic angular distributions in the region of the Coulomb barrier
1
L. N. Gumilyov, Eurasian National University, Astana, Kazakhstan
2
Institute of Nuclear Physics, Almaty, Kazakhstan
3
Physics Department, King Khalid University, Abha, Saudi Arabia
4
Department of Physics, Florida State University, 32306, Tallahassee, FL, USA
5
Faculty of Science, Tanta University, Tanta, Egypt
e
sh.m.hamada@science.tanta.edu.eg
Received:
15
August
2023
Accepted:
28
October
2023
Published online:
28
November
2023
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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© The Author(s), under exclusive licence to Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature 2023. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
