2008/11/25 by Jun Li, G. Colò, Gianluca Colo' +1 · 65 citations
Engineering · Physics and Astronomy · #Condensed matter physics #Mathematical physics #Nuclear physics research studies #Nuclear reactor physics and engineering #Pairing #Physics #Quantum Chromodynamics and Particle Interactions #Statistical physics #Superconductivity #nucl-th
paper · pdf · doi:10.1103/physrevc.78.064304
published in Physical Review C 78(6) (American Institute of Physics) · Accepted for publication in Phys. Rev. C
arxiv created 2008/11/25 · openalex publication_date 2008/12/11 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
A self-consistent quasiparticle random-phase approximation (QRPA) model that employs the canonical Hartree-Fock-Bogoliubov (HFB) basis and an energy-density functional with a Skyrme mean-field part and a density-dependent pairing is used to study the monopole collective excitations of spherical even-even nuclei. The influence of the spurious state on the strength function of the isoscalar monopole excitations is clearly assessed. We compare the effect of different kinds of pairing forces (volume pairing, surface pairing, and mixed pairing) on the monopole excitation strength function. The energy of the isoscalar giant monopole resonance (ISGMR), which is related to the nuclear incompressibility K_\ensuremath∞, is calculated for tin isotopes and the results are discussed.