Spin-Isospin Giant Resonances and the Neutron Skin of Nuclei

Journal Article · Mon Nov 21 04:00:00 EST 2005 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.2140648· OSTI ID:20719712

Vretenar, Dario ^[1]; Paar, Nils ^[2]; Niksic, Tamara; Ring, Peter ^[3]

---

1. Physics Department, Faculty of Science, University of Zagreb (Croatia)
2. Institut fuer Kernphysik, Technische Universitaet Darmstadt, 64289 Darmstadt (Germany)
3. Physik-Department der Technischen Universitaet Muenchen, D-85748 Garching (Germany)

The self-consistent relativistic proton-neutron quasiparticle random phase approximation (PN-RQRPA) has been employed in the analysis of charge-exchange modes: isobaric analog states (IAS) and Gamow-Teller resonances (GTR). A particularly interesting application is the study of the relation between the neutron skin of nuclei and the difference of excitation energies of the GTR and IAS. In addition to important information on basic nuclear structure, effective isovector interactions, and neutron-rich matter for astrophysical applications, the determination of neutron density distributions is crucial for the analysis of atomic parity-violating experiments. Detailed PN-RQRPA calculations of nuclear properties of a sequence of Sn isotopes, have shown that the isotopic dependence of the energy spacings between the GTR and IAS provides a measure of the evolution of the difference between the radii of the neutron and proton density distributions.

• OSTI ID: 20719712
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 802; ISSN 0094-243X; ISSN APCPCS
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
CHARGE EXCHANGE
EXCITATION
GAMOW-TELLER RULES
GIANT RESONANCE
ISOBARIC ANALOGS
ISOSPIN
ISOVECTORS
NEUTRON DENSITY
NEUTRONS
NUCLEAR MODELS
NUCLEAR PROPERTIES
NUCLEAR STRUCTURE
NUCLEI
PARITY
PROTON DENSITY
PROTONS
RANDOM PHASE APPROXIMATION
RELATIVISTIC RANGE
SPIN
TIN ISOTOPES