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Complete electric dipole response and the neutron skin in 208Pb.
- Source :
-
Physical review letters [Phys Rev Lett] 2011 Aug 05; Vol. 107 (6), pp. 062502. Date of Electronic Publication: 2011 Aug 03. - Publication Year :
- 2011
-
Abstract
- A benchmark experiment on (208)Pb shows that polarized proton inelastic scattering at very forward angles including 0° is a powerful tool for high-resolution studies of electric dipole (E1) and spin magnetic dipole (M1) modes in nuclei over a broad excitation energy range to test up-to-date nuclear models. The extracted E1 polarizability leads to a neutron skin thickness r(skin) = 0.156(-0.021)(+0.025) fm in (208)Pb derived within a mean-field model [Phys. Rev. C 81, 051303 (2010)], thereby constraining the symmetry energy and its density dependence relevant to the description of neutron stars.
Details
- Language :
- English
- ISSN :
- 1079-7114
- Volume :
- 107
- Issue :
- 6
- Database :
- MEDLINE
- Journal :
- Physical review letters
- Publication Type :
- Academic Journal
- Accession number :
- 21902316
- Full Text :
- https://doi.org/10.1103/PhysRevLett.107.062502