Kaufmann, S, Simonis, J, Bacca, S, Billowes, J, Bissell, ML, Blaum, K, Cheal, B, Ruiz, RF Garcia, Gins, W, Gorges, C et al (show 19 more authors)
(2020)
Charge Radius of the Short-Lived Ni-68 and Correlation with the Dipole Polarizability.
PHYSICAL REVIEW LETTERS, 124 (13).
132502-.
Abstract
We present the first laser spectroscopic measurement of the neutron-rich nucleus ^{68}Ni at the N=40 subshell closure and extract its nuclear charge radius. Since this is the only short-lived isotope for which the dipole polarizability α_{D} has been measured, the combination of these observables provides a benchmark for nuclear structure theory. We compare them to novel coupled-cluster calculations based on different chiral two- and three-nucleon interactions, for which a strong correlation between the charge radius and dipole polarizability is observed, similar to the stable nucleus ^{48}Ca. Three-particle-three-hole correlations in coupled-cluster theory substantially improve the description of the experimental data, which allows to constrain the neutron radius and neutron skin of ^{68}Ni.
| Item Type: | Article |
|---|---|
| Additional Information: | 6 pages, 3 figures |
| Uncontrolled Keywords: | nucl-ex, nucl-ex, nucl-th |
| Depositing User: | Symplectic Admin |
| Date Deposited: | 03 Apr 2020 10:47 |
| Last Modified: | 18 Jan 2023 23:56 |
| DOI: | 10.1103/PhysRevLett.124.132502 |
| Open Access URL: | https://journals.aps.org/prl/abstract/10.1103/Phys... |
| Related URLs: | |
| URI: | https://livrepository.liverpool.ac.uk/id/eprint/3081696 |
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