Charge Radius of the Short-Lived Ni68 and Correlation with the Dipole Polarizability

Autor:	S. Kaufmann, Mirko Miorelli, W. Gins, L. V. Rodríguez, Bradley Cheal, R. F. Garcia Ruiz, S. Malbrunot-Ettenauer, Deyan Yordanov, Klaus Blaum, L. Xie, J. Billowes, Gerda Neyens, C. Wraith, Wilfried Nörtershäuser, L. Wehner, H. Heylen, A. Kanellakopoulos, R. Sánchez, Sonia Bacca, S. Sailer, J. Simonis, Tim Ratajczyk, Ziye Xu, C. Gorges, Mark Bissell, Xiaofei Yang, Achim Schwenk, Rainer Neugart, Gaute Hagen
Rok vydání:	2020
Předmět:	Physics Isotope Nuclear Theory Nuclear structure General Physics and Astronomy Radius 01 natural sciences Effective nuclear charge Dipole Polarizability Charge radius 0103 physical sciences Neutron Physics::Atomic Physics Atomic physics Nuclear Experiment 010306 general physics
Zdroj:	Physical Review Letters. 124
ISSN:	1079-7114 0031-9007
Popis:	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.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::7965c93618d85eefbe026f6d346bf2e6 https://doi.org/10.1103/physrevlett.124.132502 Zobrazit plný text záznamu