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Difference in proton radii of mirror nuclei as a possible surrogate for the neutron skin
- Source :
- Phys. Rev. C 97, 014314 (2018)
- Publication Year :
- 2017
-
Abstract
- It has been recently suggested that differences in the charge radii of mirror nuclei are proportional to the neutron-skin thickness of neutron-rich nuclei and to the slope of the symmetry energy $L$ [B.A. Brown Phys. Rev. Lett. 119, 122502 (2017)]. The determination of the neutron skin has important implications for nuclear physics and astrophysics. Although the use of electroweak probes provides a largely model-independent determination of the neutron skin, the experimental challenges are enormous. Thus, the possibility that differences in the charge radii of mirror nuclei may be used as a surrogate for the neutron skin is a welcome alternative. To test the validity of this assumption we perform calculations based on a set of relativistic energy density functionals that span a wide region of values of $L$. Our results confirm that the difference in charge radii of various neutron-deficient nickel isotopes and their corresponding mirror nuclei is indeed strongly correlated to both the neutron-skin thickness and $L$. Moreover, given that various neutron-star properties are also sensitive to $L$, a data-to-data relation emerges between the difference in charge radii of mirror nuclei and the radius of low-mass neutron stars.<br />Comment: 5 pages, 3 figures
- Subjects :
- Nuclear Theory
Astrophysics - Solar and Stellar Astrophysics
Nuclear Experiment
Subjects
Details
- Database :
- arXiv
- Journal :
- Phys. Rev. C 97, 014314 (2018)
- Publication Type :
- Report
- Accession number :
- edsarx.1709.10182
- Document Type :
- Working Paper
- Full Text :
- https://doi.org/10.1103/PhysRevC.97.014314