# 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 ^{48}Ca, ^{68}Ni, ^{120}Sn, and ^{208}Pb 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 ^{48}Ca and ^{208}Pb, and they are found to be consistent with the experimental data.

- Authors:

- Publication Date:

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

- Sponsoring Org.:
- USDOE

- OSTI Identifier:
- 1437784

- Alternate Identifier(s):
- OSTI ID: 1499101

- Grant/Contract Number:
- SC0015266; PHY1652199

- Resource Type:
- Published Article

- Journal Name:
- Physics Letters B

- Additional Journal Information:
- Journal Name: Physics Letters B Journal Volume: 777 Journal Issue: C; Journal ID: ISSN 0370-2693

- Publisher:
- Elsevier

- Country of Publication:
- Netherlands

- Language:
- English

- Subject:
- 73 NUCLEAR PHYSICS AND RADIATION PHYSICS; 79 ASTRONOMY AND ASTROPHYSICS

### Citation Formats

```
Zhang, Zhen, Lim, Yeunhwan, Holt, Jeremy W., and Ko, Che Ming. Nuclear dipole polarizability from mean-field modeling constrained by chiral effective field theory. Netherlands: N. p., 2018.
Web. doi:10.1016/j.physletb.2017.12.012.
```

```
Zhang, Zhen, Lim, Yeunhwan, Holt, Jeremy W., & Ko, Che Ming. Nuclear dipole polarizability from mean-field modeling constrained by chiral effective field theory. Netherlands. doi:10.1016/j.physletb.2017.12.012.
```

```
Zhang, Zhen, Lim, Yeunhwan, Holt, Jeremy W., and Ko, Che Ming. Thu .
"Nuclear dipole polarizability from mean-field modeling constrained by chiral effective field theory". Netherlands. doi:10.1016/j.physletb.2017.12.012.
```

```
@article{osti_1437784,
```

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

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

abstractNote = {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.},

doi = {10.1016/j.physletb.2017.12.012},

journal = {Physics Letters B},

number = C,

volume = 777,

place = {Netherlands},

year = {2018},

month = {2}

}

DOI: 10.1016/j.physletb.2017.12.012

*Citation information provided by*

Web of Science

Web of Science

#### Figures / Tables:

^{∗}. For comparison, predictions from the chiral effective field theory are also shown.

Figures / Tables found in this record:

*Figures/Tables have been extracted from DOE-funded journal article accepted manuscripts.*