HNPS Advances in Nuclear Physics Banner

Shape Coexistence In The Neutron-Deficient Lead Isotopes, As Seen From Within Complimentary Models

PDF
Published: Dec 5, 2019
DOI: https://doi.org/10.12681/hnps.2249
Ruben Fossion
Department of Theoretical Physics, Aristotle University of Thessaloniki
G. A. Lalazissis
Department of Theoretical Physics, Aristotle University of Thessaloniki
Abstract

In the neutron-deficient lead isotopes, at low excitation energies, the nucleus does not have one preferred excitation mode. Instead, three different coexisting "families" of excitation states are found in the excitation spectrum. Theoretical approaches are offered within the mean-field models (both relativistic and non-relativistic) and within the Interacting Boson Model (IBM). Recently, a third approach using bosoncoherent states has shown to offer a possible bridge between the former two approaches.

Article Details
  • Section
  • Oral contributions (deprecated)
References
[I] K. Heyde et al., Phys. Rep. 102 291 (1983).
J.L. Wood et al., Phys. Rep. 215 101 (1992).
A. N. Andreyev et al., Nature 405 430 (2000).
F. Iachello and A. Arima, The Interacting Boson Model, (Cambridge University Press, 1987).
R. Fossion et al, Phys. Rev. C67 024306 (2003).
V. hellemans et al., Phys. Rev. C71 034308 (2005).
M. Bender et al., Rev. Mod. Phys. 75 121 (2003).
T. Niksic, et al, Phys. Rev. C65 054320 (2002).
G.A. Lalazissis and P. Ring, private communication.
R. Fossion, G.A. Lalazissis and P. Ring, in preparation.
[II] T. Duguet et al., Phys. Lett. B559 201 (2003); M. Bender et al., Phys Rev. C69 064303 (2004).
R.R. Rodriguez-Guzman et al., Phys. Rev. C69 054319.
G.D. Dracoulis et al. Phys. Rev. C69 054318 (2004).
A. Frank et al, Phys. Rev. C69 034323 (2004)