WIGNER-KIRKWOOD METHOD FOR MICROSCOPIC-MACROSCOPIC CALCULATION OF BINDING ENERGIES
2010 (English)In: International Journal of Modern Physics E, ISSN 0218-3013, Vol. 19, no 4, 747-758 p.Article in journal (Refereed) Published
We propose to use the semi-classical Wigner-Kirkwood (h) over bar expansion to calculate shell corrections for spherical and deformed nuclei. The expansion is carried out up to fourth order in (h) over bar. A systematic study of Wigner-Kirkwood averaged energies is presented as a function of the deformation degrees of freedom. The shell corrections, along with the pairing energies obtained by using the Lipkin-Nogami scheme are used in the microscopic-macroscopic approach to calculate binding energies. The macroscopic part is obtained from a liquid drop formula with six adjustable parameters. Considering a set of 367 spherical nuclei, the liquid drop parameters are adjusted to reproduce the experimental binding energies, which yields a rms deviation of 630 keV.
Place, publisher, year, edition, pages
2010. Vol. 19, no 4, 747-758 p.
IdentifiersURN: urn:nbn:se:kth:diva-27857DOI: 10.1142/S0218301310015187ISI: 000277880900031ScopusID: 2-s2.0-77952588255OAI: oai:DiVA.org:kth-27857DiVA: diva2:385427
QC 201101112011-01-112011-01-032011-01-11Bibliographically approved