Fission properties of Po isotopes in different macroscopic–microscopic models

Abstract : Fission-barrier heights of nuclei in the Po isotopic chain are investigated in several macroscopic– microscopic models. Using the Yukawa-folded single-particle potential, the Lublin–Strasbourg drop (LSD) model, the Strutinsky shell-correction method to yield the shell corrections and the BCS theory for the pairing contributions, fission-barrier heights are calculated and found in quite good agreement with the experimental data. This turns out, however, to be only the case when the underlying macroscopic, liquid-drop (LD) type, theory is well chosen. Together with the LSD approach, different LD parametrizations proposed by Moretto et al are tested. Four deformation parameters describing respectively elongation, neck-formation, reflectionalasymmetric, and non-axiality of the nuclear shape thus defining the so called modified Funny Hills shape parametrization are used in the calculation. The present study clearly demonstrates that nuclear fission-barrier heights constitute a challenging and selective tool to discern between such different macroscopic approaches.
Type de document :
Article dans une revue
Physica Scripta, IOP Publishing, 2015, 90 (11), pp.114004. 〈10.1088/0031-8949/90/11/114004〉
Liste complète des métadonnées

http://hal.in2p3.fr/in2p3-01259295
Contributeur : Michel Lion <>
Soumis le : mercredi 20 janvier 2016 - 11:40:00
Dernière modification le : jeudi 15 mars 2018 - 01:35:03

Identifiants

Collections

Citation

J. Bartel, K. Pomorski, B. Nerlo-Pomorska, C. Schmitt. Fission properties of Po isotopes in different macroscopic–microscopic models. Physica Scripta, IOP Publishing, 2015, 90 (11), pp.114004. 〈10.1088/0031-8949/90/11/114004〉. 〈in2p3-01259295〉

Partager

Métriques

Consultations de la notice

69