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Title: Structure of Ni 78 from First-Principles Computations

Abstract

Doubly magic nuclei have a simple structure and are the cornerstones for entire regions of the nuclear chart. Theoretical insights into the supposedly doubly magic 78Ni and its neighbors are challenging because of the extreme neutron-to-proton ratio and the proximity of the continuum. In this study, we predict the Jπ = 2$$+\atop{1}$$ state in 78Ni from a correlation with the Jπ = 2$$+\atop{1}$$ state in 48Ca using chiral nucleon-nucleon and three-nucleon interactions. Our results confirm that 78Ni is doubly magic, and the predicted low-lying states of 79,80Ni open the way for shell-model studies of many more rare isotopes.

Authors:
 [1];  [2];  [1]
  1. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Univ. of Tennessee, Knoxville, TN (United States)
  2. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Publication Date:
Research Org.:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States). Oak Ridge Leadership Computing Facility (OLCF)
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
1341533
Alternate Identifier(s):
OSTI ID: 1329097
Grant/Contract Number:  
AC05-00OR22725; FG02-96ER40963; SC0008499
Resource Type:
Accepted Manuscript
Journal Name:
Physical Review Letters
Additional Journal Information:
Journal Volume: 117; Journal Issue: 17; Journal ID: ISSN 0031-9007
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; 97 MATHEMATICS AND COMPUTING

Citation Formats

Hagen, Gaute, Jansen, Gustav R., and Papenbrock, Thomas F. Structure of Ni78 from First-Principles Computations. United States: N. p., 2016. Web. doi:10.1103/PhysRevLett.117.172501.
Hagen, Gaute, Jansen, Gustav R., & Papenbrock, Thomas F. Structure of Ni78 from First-Principles Computations. United States. https://doi.org/10.1103/PhysRevLett.117.172501
Hagen, Gaute, Jansen, Gustav R., and Papenbrock, Thomas F. Mon . "Structure of Ni78 from First-Principles Computations". United States. https://doi.org/10.1103/PhysRevLett.117.172501. https://www.osti.gov/servlets/purl/1341533.
@article{osti_1341533,
title = {Structure of Ni78 from First-Principles Computations},
author = {Hagen, Gaute and Jansen, Gustav R. and Papenbrock, Thomas F.},
abstractNote = {Doubly magic nuclei have a simple structure and are the cornerstones for entire regions of the nuclear chart. Theoretical insights into the supposedly doubly magic 78Ni and its neighbors are challenging because of the extreme neutron-to-proton ratio and the proximity of the continuum. In this study, we predict the Jπ = 2$+\atop{1}$ state in 78Ni from a correlation with the Jπ = 2$+\atop{1}$ state in 48Ca using chiral nucleon-nucleon and three-nucleon interactions. Our results confirm that 78Ni is doubly magic, and the predicted low-lying states of 79,80Ni open the way for shell-model studies of many more rare isotopes.},
doi = {10.1103/PhysRevLett.117.172501},
journal = {Physical Review Letters},
number = 17,
volume = 117,
place = {United States},
year = {Mon Oct 17 00:00:00 EDT 2016},
month = {Mon Oct 17 00:00:00 EDT 2016}
}

Journal Article:

Citation Metrics:
Cited by: 84 works
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Figures / Tables:

FIG. 1 FIG. 1: Energy of the 2$+\atop{1}$ state in neutron-rich nickel isotopes for 68−76Ni from data (black horizontal lines) and for 78,80Ni from first-principles computations (red horizontal lines) based on the chiral interaction “1.8/2.0 (EM)” of Ref. [31]. The red shaded area for 78Ni shows the predicted range for the 2$+\atop{1}$more » state based on a correlation between the 2$+\atop{1}$ in 48Ca and 78Ni using a family of chiral interactions (see text and Fig. 2 for details).« less

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