High-spin nuclear states and persistent currents in mesoscopic rings
I.N. Mikhailov1,2 - P. Quentin3,4
1 Centre de Spectrométrie Nucléaire et de Spectrométrie de
Masse (IN2P3-CNRS), Orsay, France
2 Bogoliubov Laboratory of Theoretical Physics (JINR), Dubna, Russia
3 Centre d'Etudes Nucléaires de Bordeaux-Gradignan (IN2P3-CNRS and Univ.
Bordeaux-I), Gradignan, France
4 Institute for Nuclear Theory, University of Washington, Seattle, USA
Received: 21 July 1997 / Revised version: 13 October 1997 Communicated by B. Povh
Abstract
An analogy is presented between periodic persistent currents in
mesoscopic rings and staggerings of gamma energy transitions from some nuclear
high-spin states. Various sources of damping of the expected periodic
structures in both physical systems are compared. This discussion provides, in
the nuclear case, a tentative explanation of the scarcity of such staggerings,
their appearance near 150Gd and the existence of a spin-window for their
observation.
PACS
21.10.Re Collective levels and giant resonances -
21.60.Ev Collective models -
21.60.Jz Hartree-Fock and random-phase approximations
Copyright Springer-Verlag
