Journal article

Publication year: 1979

Pages: 271-284

Journal: Nuclear Physics A: Nuclear and Hadronic Physics

Volume number: 323

Issue number: 2-3

ISSN: 0375-9474

DOI Link: https://doi.org/10.1016/0375-9474(79)90110-6

Publisher: Elsevier

Abstract: 

Current and velocity fields for collective rotations are calculated from cranked BCS correlated wave functions for even-even rare earth nuclei. The single-particle Hamiltonian used is that of the Nilsson model. The velocity fields obtained do not yield a spherical inert core, in contrast to the two-fluid model. It is shown that the flow pattern can be represented quite accurately by a superposition of irrotational and rigid flow. The strength of the former can reach up to 60 % — depending on the specific nucleus — in the case without pairing and is usually about 80 % with pairing. Finally several forms for the collective rotational energy are compared. It is found that the classical expression grossly underestimates the correct energies.

Harvard Citation style: Kunz, J. and Mosel, U. (1979) Flow patterns for collective rotations in heavy nuclei, Nuclear Physics A: Nuclear and Hadronic Physics, 323(2-3), pp. 271-284. https://doi.org/10.1016/0375-9474(79)90110-6

APA Citation style: Kunz, J., & Mosel, U. (1979). Flow patterns for collective rotations in heavy nuclei. Nuclear Physics A: Nuclear and Hadronic Physics. 323(2-3), 271-284. https://doi.org/10.1016/0375-9474(79)90110-6