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Open sd-shell nuclei from first principles
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DOI：10.1103/PhysRevC.94.011301.png)
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摘要
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We extend the ab initio coupled-cluster effective interaction (CCEI) method to open-shell nuclei with protons and neutrons in the valence space and compute binding energies and excited states of isotopes of neon and magnesium. We employ a nucleon-nucleon and three-nucleon interaction from chiral effective field theory evolved to a lower cutoff via a similarity renormalization group transformation. We find good agreement with experiment for binding energies and spectra, while charge radii of neon isotopes are underestimated. For the deformed nuclei Ne-20 and Mg-24, we reproduce rotational bands and electric quadrupole transitions within uncertainties estimated from an effective field theory for deformed nuclei, thereby demonstrating that collective phenomena in sd-shell nuclei emerge from complex ab initio calculations.
Keyword:
COUPLED-CLUSTER METHODS
MODEL
STATE
MATTER
RADII
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期刊
IF:
3.4
论文数:
2.9W
被引数:
5.7W
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引用论文
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