Journalartikel

Jahr der Veröffentlichung: 1984

Seiten: 34-60

Zeitschrift: Nuclear Physics A: Nuclear and Hadronic Physics

Bandnummer: 412

Heftnummer: 1

ISSN: 0375-9474

DOI Link: https://doi.org/10.1016/0375-9474(84)90384-1

Verlag: Elsevier

Abstract: 

By means of the adiabatic cranking model the properties of the current and velocity fields of nuclear quadrupole vibrations for even-even nuclei in the rare-earth region are investigated. BCS correlated wave functions based on the Nilsson single-particle hamiltonian have been used. The current fields are analyzed in terms of vector spherical harmonics. The realistic microscopic currents show a vortex structure not present in the classical irrotational flow. The microscopic origin of the vortex structure is investigated. Whereas irrotational flow is related to high-lying excitations, the vortical current is shown to represent low-lying excitations. The influence of pairing is demonstrated; high pairing gaps yield nearly irrotational flow. The effect of deformation is studied. The crankingmodel velocity fields are compared with the results of classical first and zero sound calculations and are found to agree with the latter in important aspects.

Harvard-Zitierstil: Schuh, A., Kunz, J. and Mosel, U. (1984) Flow patterns for collective quadrupole vibrations in heavy nuclei, Nuclear Physics A: Nuclear and Hadronic Physics, 412(1), pp. 34-60. https://doi.org/10.1016/0375-9474(84)90384-1

APA-Zitierstil: Schuh, A., Kunz, J., & Mosel, U. (1984). Flow patterns for collective quadrupole vibrations in heavy nuclei. Nuclear Physics A: Nuclear and Hadronic Physics. 412(1), 34-60. https://doi.org/10.1016/0375-9474(84)90384-1