Probing pairing correlations in Sn isotopes using Richardson-Gaudin integrability

20th International School on Nuclear Physics, Neutron Physics and Applications

De Baerdemacker, S.^1,2 ; Hellemans, V.^3 ; Van Den Berg, R.^4 ; Caux, J.-S.^4 ; Heyde, K.^2 ; Van Raemdonck, M.^1,2 ; Van Neck, D.^1,2 ; Johnson, P.A.^5

Ghent University, Center for Molecular Modeling, Technologiepark 903, Ghent

9052, Belgium^1

Ghent University, Department of Physics and Astronomy, Proeftuinstraat 86, Ghent

9000, Belgium^2

Universite Libré de Bruxelles, PNTPM, CP229, Brussels

1050, Belgium^3

Institute for Theoretical Physics, University of Amsterdam, Science Park 904, Postbus 94485, GL Amsterdam

1090, Netherlands^4

Department of Chemistry and Chemical Biology, McMaster University, Hamilton

ON, Canada^5

关键词: Integrability;    Pairing correlations;    Richardson;    Shell structure;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/533/1/012058/pdf
DOI  :  10.1088/1742-6596/533/1/012058

来源: IOP

【 摘 要 】

Pairing correlations in the even-even A 102 - 130 Sn isotopes are discussed, based on the Richardson-Gaudin variables in an exact Woods-Saxon plus reduced BCS pairing framework. The integrability of the model sheds light on the pairing correlations, in particular on the previously reported sub-shell structure.