Nuclear dipole polarizability from mean-field modeling constrained by chiral effective field theory

Zhen Zhang, Yeunhwan Lim, Jeremy W. Holt, Che Ming Ko

Research output: Contribution to journalArticlepeer-review

22 Scopus citations

Abstract

We construct a new Skyrme interaction Skχm by fitting the equation of state and nucleon effective masses in asymmetric nuclear matter from chiral two- and three-body forces as well as the binding energies of finite nuclei. Employing this interaction to study the electric dipole polarizabilities of 48Ca, 68Ni, 120Sn, and 208Pb in the random-phase approximation, we find that the theoretical predictions are in good agreement with experimentally measured values without additional fine tuning of the Skyrme interaction, thus confirming the usefulness of the new Skyrme interaction in studying the properties of nuclei. We further use this interaction to study the neutron skin thicknesses of 48Ca and 208Pb, and they are found to be consistent with the experimental data.

Original languageEnglish
Pages (from-to)73-78
Number of pages6
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume777
DOIs
StatePublished - 10 Feb 2018

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