### Abstract

We solve for properties of ^{6}Li in the ab initio no-core full configuration (NCFC) approach and we separately solve for its ground state and resonance with the Gamow shell model (GSM) in the Berggren basis. We employ both the JISP16 and chiral realistic nucleon-nucleon interactions and investigate the ground state energy, excitation energies, point proton root mean square (rms) radius and a suite of electroweak observables. We also extend and test methods to extrapolate the ground state energy, point proton rms radius, and electric quadrupole moment. We attain improved estimates of these observables in the NCFC approach by using basis spaces up through that enable more definitive comparisons with experiment. Using the density matrix renormalization group approach with the JISP16 interaction, we find that we can significantly improve the convergence of the GSM treatment of the ^{6}Li ground state and resonance by adopting a natural orbital single-particle basis.

Language | English (US) |
---|---|

Article number | 075103 |

Journal | Journal of Physics G: Nuclear and Particle Physics |

Volume | 44 |

Issue number | 7 |

DOIs | |

State | Published - May 31 2017 |

### Profile

### Keywords

- extrapolation
- Gamow shell model
- No-core full configuration

### ASJC Scopus subject areas

- Nuclear and High Energy Physics

### Cite this

^{6}Li.

*Journal of Physics G: Nuclear and Particle Physics*,

*44*(7), [075103]. DOI: 10.1088/1361-6471/aa6cb7

**Ab initio no-core solutions for ^{6}Li.** / Shin, Ik Jae; Kim, Youngman; Maris, Pieter; Vary, James P.; Forssén, Christian; Rotureau, Jimmy; Michel, Nicolas.

Research output: Research - peer-review › Article

^{6}Li'

*Journal of Physics G: Nuclear and Particle Physics*, vol 44, no. 7, 075103. DOI: 10.1088/1361-6471/aa6cb7

^{6}Li. Journal of Physics G: Nuclear and Particle Physics. 2017 May 31;44(7). 075103. Available from, DOI: 10.1088/1361-6471/aa6cb7

}

TY - JOUR

T1 - Ab initio no-core solutions for 6Li

AU - Shin,Ik Jae

AU - Kim,Youngman

AU - Maris,Pieter

AU - Vary,James P.

AU - Forssén,Christian

AU - Rotureau,Jimmy

AU - Michel,Nicolas

PY - 2017/5/31

Y1 - 2017/5/31

N2 - We solve for properties of 6Li in the ab initio no-core full configuration (NCFC) approach and we separately solve for its ground state and resonance with the Gamow shell model (GSM) in the Berggren basis. We employ both the JISP16 and chiral realistic nucleon-nucleon interactions and investigate the ground state energy, excitation energies, point proton root mean square (rms) radius and a suite of electroweak observables. We also extend and test methods to extrapolate the ground state energy, point proton rms radius, and electric quadrupole moment. We attain improved estimates of these observables in the NCFC approach by using basis spaces up through that enable more definitive comparisons with experiment. Using the density matrix renormalization group approach with the JISP16 interaction, we find that we can significantly improve the convergence of the GSM treatment of the 6Li ground state and resonance by adopting a natural orbital single-particle basis.

AB - We solve for properties of 6Li in the ab initio no-core full configuration (NCFC) approach and we separately solve for its ground state and resonance with the Gamow shell model (GSM) in the Berggren basis. We employ both the JISP16 and chiral realistic nucleon-nucleon interactions and investigate the ground state energy, excitation energies, point proton root mean square (rms) radius and a suite of electroweak observables. We also extend and test methods to extrapolate the ground state energy, point proton rms radius, and electric quadrupole moment. We attain improved estimates of these observables in the NCFC approach by using basis spaces up through that enable more definitive comparisons with experiment. Using the density matrix renormalization group approach with the JISP16 interaction, we find that we can significantly improve the convergence of the GSM treatment of the 6Li ground state and resonance by adopting a natural orbital single-particle basis.

KW - extrapolation

KW - Gamow shell model

KW - No-core full configuration

UR - http://www.scopus.com/inward/record.url?scp=85021304340&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85021304340&partnerID=8YFLogxK

U2 - 10.1088/1361-6471/aa6cb7

DO - 10.1088/1361-6471/aa6cb7

M3 - Article

VL - 44

JO - Journal of Physics G: Nuclear and Particle Physics

T2 - Journal of Physics G: Nuclear and Particle Physics

JF - Journal of Physics G: Nuclear and Particle Physics

SN - 0954-3899

IS - 7

M1 - 075103

ER -