The Giant Monopole Resonance in the Sn Isotopes: Why is Tin so "Fluffy"?

Abstract

The isoscalar giant monopole resonance (GMR) has been investigated in a series of Sn isotopes (A=112--124) using inelstic scattering of 400-MeV alpha particles at extremely forward angles (including 0deg). The primary aim of the investigation has been to explore the role of the "symmetry-energy" term in the expression for nuclear incompressibility. It is found that the energies of the GMR in the Sn isotopes are significantly lower than those expected from the nuclear incompressibility previously extracted from the available data on the compressional-mode giant resonances.

Invited talk at COMEX2:Second International Conference on Collective Motion in Nuclei under Extreme Conditions, St. Goar, Germany, June 20-23, 2006. To be published, eventually, in Nuclear Phys. A. 8 pages, 4 figures

References in corpus (2)

• Neutron-Rich Nuclei in Heaven and Earth
• The long journey from the giant-monopole resonance to the nuclear-matter incompressibility

Cited by in corpus (11)

• Isotopic dependence of the giant monopole resonance in the even-A ^{112-124}Sn isotopes and the asymmetry term in nuclear incompressibility
• Higher-order effects on the incompressibility of isospin asymmetric nuclear matter
• Density dependence of the nuclear symmetry energy: a microscopic perspective
• Incompressibility of neutron-rich matter
• Why is Tin so soft?
• Validating relativistic models of nuclear structure against theoretical, experimental, and observational constraints
• The breathing-mode giant monopole resonance and the surface compressibility in the relativistic mean-field theory
• Dynamical instabilities of warm $np{e}^{-}$ matter: the $\delta$ meson effects
• A phenomenological equation of state for isospin asymmetric nuclear matter
• Role of nonlinear vector meson interactions in hyperon stars
• A nonlinear classical model for the decay widths of Isoscalar Giant Monopole Resonances