https://doi.org/10.1140/epjp/s13360-024-05634-w
Regular Article
Deformation dependence of superconductivity in neodymium isotopes
Department of Physics, College of Science, Shiraz University, 71345, Shiraz, Iran
Received:
3
June
2024
Accepted:
8
September
2024
Published online:
30
September
2024
We have applied the mean gap BCS (MEGBCS) model at finite temperature including pairing fluctuation to study the dependence of thermal properties as well as nuclear level density (NLD) of 
Nd isotopes to deformation. Recently, rich experimental data have been extracted for these isotopes by the so-called Oslo method. In the MEGBCS model, the mean gap parameter is calculated and then used to compute excitation energy, entropy, heat capacity and NLD. The results show that the pairing correlation decreases with increasing temperature due to the breaking of Cooper pairs, not collapsing but saturates beyond the critical temperature as a result of weakening of blocking effect by increasing temperature. The S-shaped heat capacity is yielded in which at low deformation protons play role and at higher deformation neutrons are responsible for the S-shape. The NLD increases with deformation except for 
Nd experimentally and in MEGBCS model. The very satisfactory agreement between the experimental and the MEGBCS NLD is obtained.
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© The Author(s), under exclusive licence to Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature 2024. 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.
