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

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

doi:10.1016/j.physletb.2017.12.012

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

Journal Article · 06 December 2017 · Physics Letters B

DOI: https://doi.org/10.1016/j.physletb.2017.12.012 · OSTI ID:1437784

Zhang, Zhen ^[1]; Lim, Yeunhwan ^[1]; Holt, Jeremy W. ^[1]; Ko, Che Ming ^[1]

Texas A & M Univ., College Station, TX (United States)

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.

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Research Organization:: Texas A & M Univ., College Station, TX (United States)

Sponsoring Organization:: USDOE

Grant/Contract Number:: SC0015266; PHY1652199

OSTI ID:: 1437784

Alternate ID(s):: OSTI ID: 1499101

Journal Information:: Physics Letters B, Vol. 777, Issue C; ISSN 0370-2693

Publisher:: ElsevierCopyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 29 works

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