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Isotopic Chains Around Oxygen from Evolved Chiral Two- and Three-Nucleon Interactions

2013/03/31 by A. Cipollone, Andrea Cipollone, C. Barbieri +3 · 172 citations
Physics and Astronomy · #Astro and Planetary Science #Atomic and Molecular Physics #Atomic physics #Binding energy #Few-body systems #Formalism (music) #Many-body problem #Neutron #Nuclear physics research studies #Nucleon #Physics #Quantum mechanics #nucl-th

paper · pdf · doi:10.1103/physrevlett.111.062501

published in Physical Review Letters 111(6), 062501 (American Physical Society) · 5 pages,corrected typos,added references [3,9,12,14,39,41,42,44], minor changes in the introduction and final comments, results unchanged

arxiv created 2013/06/21 · openalex publication_date 2013/08/07 · arxiv updated 2014/03/14 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/06

Abstract

We extend the formalism of self-consistent Green's function theory to include three-body interactions and apply it to isotopic chains around oxygen for the first time. The third-order algebraic diagrammatic construction equations for two-body Hamiltonians can be exploited upon defining system-dependent one- and two-body interactions coming from the three-body force, and, correspondingly, dropping interaction-reducible diagrams. The Koltun sum rule for the total binding energy acquires a correction due to the added three-body interaction. This formalism is then applied to study chiral two- and three-nucleon forces evolved to low momentum cutoffs. The binding energies of nitrogen, oxygen, and fluorine isotopes are reproduced with good accuracy and demonstrate the predictive power of this approach. Leading order three-nucleon forces consistently bring results close to the experiment for all neutron rich isotopes considered and reproduce the correct driplines for oxygen and nitrogen. The formalism introduced also allows us to calculate form factors for nucleon transfer on doubly magic systems.

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