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

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

doi:10.1016/j.physletb.2017.12.012

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

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

Department of Physics

Research output: Contribution to journal › Article › peer-review

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 language	English
Pages (from-to)	73-78
Number of pages	6
Journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	777
DOIs	https://doi.org/10.1016/j.physletb.2017.12.012
Publication status	Published - 2018 Feb 10

Bibliographical note

Funding Information:
This work was supported by the U.S. Department of Energy under Contract No. DE-SC0015266 , the National Science Foundation under Grant No. PHY1652199 , and the Welch Foundation under Grant No. A-1358 .

Publisher Copyright:
© 2017 The Authors

All Science Journal Classification (ASJC) codes

Nuclear and High Energy Physics

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10.1016/j.physletb.2017.12.012

Cite this

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title = "Nuclear dipole polarizability from mean-field modeling constrained by chiral effective field theory",

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.",

author = "Zhen Zhang and Yeunhwan Lim and Holt, {Jeremy W.} and Ko, {Che Ming}",

note = "Funding Information: This work was supported by the U.S. Department of Energy under Contract No. DE-SC0015266 , the National Science Foundation under Grant No. PHY1652199 , and the Welch Foundation under Grant No. A-1358 . Publisher Copyright: {\textcopyright} 2017 The Authors",

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doi = "10.1016/j.physletb.2017.12.012",

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T1 - Nuclear dipole polarizability from mean-field modeling constrained by chiral effective field theory

AU - Zhang, Zhen

AU - Lim, Yeunhwan

AU - Holt, Jeremy W.

AU - Ko, Che Ming

N1 - Funding Information: This work was supported by the U.S. Department of Energy under Contract No. DE-SC0015266 , the National Science Foundation under Grant No. PHY1652199 , and the Welch Foundation under Grant No. A-1358 . Publisher Copyright: © 2017 The Authors

PY - 2018/2/10

Y1 - 2018/2/10

N2 - 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.

AB - 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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JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

ER -

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

Abstract

Bibliographical note

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