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Ab Initio Computation of the {sup 17}F Proton Halo State and Resonances in A=17 Nuclei

Journal Article · · Physical Review Letters
 [1];  [2];  [3]
  1. Physics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831 (United States)
  2. Department of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee 37996 (United States)
  3. Department of Physics and Center of Mathematics for Applications, University of Oslo, N-0316 Oslo (Norway)
We perform coupled-cluster calculations of the energies and lifetimes of single-particle states around the doubly magic nucleus {sup 16}O based on chiral nucleon-nucleon interactions at next-to-next-to-next-to-leading order. To incorporate effects from the scattering continuum, we employ a Gamow-Hartree-Fock basis. Our calculations for the J{sup {pi}=}1/2{sup +} proton halo state in {sup 17}F and the 1/2{sup +} state in {sup 17}O agree well with experiment, while the calculated spin-orbit splitting between 5/2{sup +} and 3/2{sup +} states is too small due to the lack of three-nucleon forces. Continuum effects yield a significant amount of additional binding energy for the 1/2{sup +} and 3/2{sup +} states in {sup 17}O and {sup 17}F.
OSTI ID:
21410672
Journal Information:
Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 18 Vol. 104; ISSN 0031-9007; ISSN PRLTAO
Country of Publication:
United States
Language:
English