# The limits of the nuclear landscape explored by the relativistic continuum Hartree–Bogoliubov theory

## Abstract

The ground-state properties of nuclei with 8 $$\leqslant$$ Z $$\leqslant$$ 120 from the proton drip line to the neutron drip line have been investigated using the relativistic continuum Hartree-Bogoliubov (RCHB) theory with the relativistic density functional PC-PK1. With the effects of the continuum included, there are totally 9035 nuclei predicted to be bound, which largely extends the existing nuclear landscapes predicted with other methods. The calculated binding energies, separation energies, neutron and proton Fermi surfaces, root-mean-square (rms) radii of neutron, proton, matter, and charge distributions, ground-state spins and parities are tabulated. The extension of the nuclear landscape obtained with RCHB is discussed in detail, in particular for the neutron-rich side, in comparison with the relativistic mean field calculations without pairing correlations and also other predicted landscapes. Here, it is found that the coupling between the bound states and the continuum due to the pairing correlations plays an essential role in extending the nuclear landscape. The systematics of the separation energies, radii, densities, potentials and pairing energies of the RCHB calculations are also discussed. In addition, the α-decay energies and proton emitters based on the RCHB calculations are investigated.

- Authors:

- Beihang Univ., Beijing (China). School of Physics and Nuclear Energy Engineering
- Texas A & M Univ., College Station, TX (United States). Cyclotron Inst.; Inst. for Basic Science, Daejeon (Korea). Rare Isotope Science Project
- Peking Univ., Beijing (China). School of Physics, State Key Lab. of Nuclear Physics; Argonne National Lab. (ANL), Argonne, IL (United States)
- Inst. of Physical and Chemical Research (RIKEN), Wako (Japan). Nishina Center
- Beihang Univ., Beijing (China). School of Physics and Nuclear Energy Engineering; Guizhou Minzu Univ., Guiyang (China). School of Mechatronics Engineering
- Peking Univ., Beijing (China). School of Physics, State Key Lab. of Nuclear Physics; China Academy of Engineering Physics, Sichuan (China). Inst. of materials
- Peking Univ., Beijing (China). School of Physics, State Key Lab. of Nuclear Physics
- Inst. for Basic Science, Daejeon (Korea). Rare Isotope Science Project
- Peking Univ., Beijing (China). School of Physics, State Key Lab. of Nuclear Physics; Beihang Univ., Beijing (China). School of Physics and Nuclear Energy Engineering; Univ. of Stellenbosch, Stellenbosch (South Africa). Dept. of Physics

- Publication Date:

- Research Org.:
- Argonne National Lab. (ANL), Argonne, IL (United States)

- Sponsoring Org.:
- USDOE Office of Science (SC), Nuclear Physics (NP) (SC-26); National Natural Science Foundation of China (NNSFC); National Research Foundation of Korea (NRF)

- OSTI Identifier:
- 1433000

- Grant/Contract Number:
- AC02-06CH11357; 2013CB834400; 11335002; 11375015; 11461141002, 11621131001; 11605163

- Resource Type:
- Journal Article: Accepted Manuscript

- Journal Name:
- Atomic Data and Nuclear Data Tables

- Additional Journal Information:
- Journal Volume: 121-122; Journal Issue: C; Journal ID: ISSN 0092-640X

- Publisher:
- Elsevier

- Country of Publication:
- United States

- Language:
- English

- Subject:
- 73 NUCLEAR PHYSICS AND RADIATION PHYSICS; Mass table; Relativistic continuum Hartree-Bogoliubov theory; Density functional PC-PK1; Drip line; Continuum effects; Pairing correlations

### Citation Formats

```
Xia, X. W., Lim, Y., Zhao, P. W., Liang, H. Z., Qu, X. Y., Chen, Y., Liu, H., Zhang, L. F., Zhang, S. Q., Kim, Y., and Meng, J.
```*The limits of the nuclear landscape explored by the relativistic continuum Hartree–Bogoliubov theory*. United States: N. p., 2017.
Web. doi:10.1016/j.adt.2017.09.001.

```
Xia, X. W., Lim, Y., Zhao, P. W., Liang, H. Z., Qu, X. Y., Chen, Y., Liu, H., Zhang, L. F., Zhang, S. Q., Kim, Y., & Meng, J.
```*The limits of the nuclear landscape explored by the relativistic continuum Hartree–Bogoliubov theory*. United States. doi:10.1016/j.adt.2017.09.001.

```
Xia, X. W., Lim, Y., Zhao, P. W., Liang, H. Z., Qu, X. Y., Chen, Y., Liu, H., Zhang, L. F., Zhang, S. Q., Kim, Y., and Meng, J. Wed .
"The limits of the nuclear landscape explored by the relativistic continuum Hartree–Bogoliubov theory". United States. doi:10.1016/j.adt.2017.09.001. https://www.osti.gov/servlets/purl/1433000.
```

```
@article{osti_1433000,
```

title = {The limits of the nuclear landscape explored by the relativistic continuum Hartree–Bogoliubov theory},

author = {Xia, X. W. and Lim, Y. and Zhao, P. W. and Liang, H. Z. and Qu, X. Y. and Chen, Y. and Liu, H. and Zhang, L. F. and Zhang, S. Q. and Kim, Y. and Meng, J.},

abstractNote = {The ground-state properties of nuclei with 8 $\leqslant$ Z $\leqslant$ 120 from the proton drip line to the neutron drip line have been investigated using the relativistic continuum Hartree-Bogoliubov (RCHB) theory with the relativistic density functional PC-PK1. With the effects of the continuum included, there are totally 9035 nuclei predicted to be bound, which largely extends the existing nuclear landscapes predicted with other methods. The calculated binding energies, separation energies, neutron and proton Fermi surfaces, root-mean-square (rms) radii of neutron, proton, matter, and charge distributions, ground-state spins and parities are tabulated. The extension of the nuclear landscape obtained with RCHB is discussed in detail, in particular for the neutron-rich side, in comparison with the relativistic mean field calculations without pairing correlations and also other predicted landscapes. Here, it is found that the coupling between the bound states and the continuum due to the pairing correlations plays an essential role in extending the nuclear landscape. The systematics of the separation energies, radii, densities, potentials and pairing energies of the RCHB calculations are also discussed. In addition, the α-decay energies and proton emitters based on the RCHB calculations are investigated.},

doi = {10.1016/j.adt.2017.09.001},

journal = {Atomic Data and Nuclear Data Tables},

issn = {0092-640X},

number = C,

volume = 121-122,

place = {United States},

year = {2017},

month = {11}

}