Naslov
Spin-Isospin Resonances and the Neutron Skin of Nuclei

Autori
Paar, Nils ; Ring, Peter ; Vretenar, Dario ; Niksic, Tamara

Izvornik
GSI Scientific Report 2003, pp 34, Ed. U. Grundinger, Gesellschaft fuer Schwerionenforschung in der Helmholtz-Gemeinschaft, ISSN: 0174-0814 and GSI Report 2004-1, Darmstadt (2004).

Vrsta, podvrsta
Ostale vrste radova, izvještaj

Godina
2004

Ključne riječi
giant resonances; spin-flip; Gamow-Teller; QRPA; mean field

Sažetak
Charge distributions in nuclei have been measured with extremely high precision since many years and they provide an essential tools for our understanding of atomic nuclei. It is much more difficult to measure the distribution of neutrons. Therefore this quantity is at present in the center of many theoretical and experimental investigations. It places important additional constraints on effective interactions used in nuclear models. Various experimental methods have been used, or suggested, for the determination of this quantity, but no existing measurement of neutron densities or radii has an established accuracy of one percent. We suggest a new method for determining the difference between the radii of the neutron and proton density distributions along an isotopic chain, based on measurement of the excitation energies of the Gamow-Teller resonances relative to the isobaric analog states.

Izvorni jezik
Engleski

Znanstvena područja
Fizika

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