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Author Roca-Maza, X. ♦ Colò, G. ♦ Cao, Li-Gang ♦ Sagawa, H.
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS ♦ COMPARATIVE EVALUATIONS ♦ DIPOLES ♦ ENERGY DENSITY ♦ GAMOW-TELLER RULES ♦ INTERACTIONS ♦ ISOSPIN ♦ LEAD 208 ♦ MEV RANGE 10-100 ♦ NUCLEAR MAGNETIC RESONANCE ♦ SATURATION ♦ SKYRME POTENTIAL ♦ SPIN ♦ SYMMETRY
Abstract A correct determination of the isospin and spin-isospin properties of the nuclear effective interaction should lead to an accurate description of the Gamow-Teller resonance (GT), the Spin Dipole Resonance (SDR), the Giant Dipole Resonance (GDR) or the Antianalog Giant Dipole Resonance (AGDR), among others. A new Skyrme energy density functional named SAMi is introduced with the aim of going a step forward in setting the bases for a more precise description of spin-isospin resonances [1, 2]. In addition, we will discuss some new features of our analysis on the AGDR in {sup 208}Pb [3] as compared with available experimental data on this resonance [4, 5, 6], and on the GDR [7]. Such study, guided by a simple yet physical pocket formula, has been developed by employing the so called SAMi-J family of systematically varied interactions. This set of interactions is compatible with experimental data for values of the symmetry energy at saturation J and slope parameter L falling in the ranges 31−33 MeV and 75−95 MeV, respectively.
ISSN 0094243X
Educational Use Research
Learning Resource Type Article
Publisher Date 2015-10-15
Publisher Place United States
Volume Number 1681
Issue Number 1


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