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Has a Thick Neutron Skin in 208Pb Been Ruled Out?

Authors :
Fattoyev, F. J.
Piekarewicz, J.
Source :
Physical Review Letters. 10/18/2013, Vol. 111 Issue 16, p162501-1-162501-5. 5p.
Publication Year :
2013

Abstract

The Lead Radius Experiment has provided the first model-independent evidence in favor of a neutron-rich skin in 208Pb. Although the error bars are large, the reported large central value of 0.33 fm is particularly intriguing. To test whether such a thick neutron skin in 208Pb is already incompatible with laboratory experiments or astrophysical observations, we employ relativistic models with neutron-skin thickness in 208Pb ranging from 0.16 to 0.33 fm to compute ground-state properties of finite nuclei, their collective monopole and dipole response, and mass-versus-radius relations for neutron stars. No compelling reason was found to rule out models with large neutron skins in 208Pb from the set of observables considered in this Letter. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
00319007
Volume :
111
Issue :
16
Database :
Academic Search Index
Journal :
Physical Review Letters
Publication Type :
Academic Journal
Accession number :
91827064
Full Text :
https://doi.org/10.1103/PhysRevLett.111.162501