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Title: Three-cluster dynamics within an ab initio framework

Journal Article · · Physical Review C, Nuclear Physics
 [1];  [2];  [2]
  1. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
  2. TRIUMF, Vancouver, BC (Canada)

In this study, we introduce a fully antisymmetrized treatment of three-cluster dynamics within the ab initio framework of the no-core shell model/resonating-group method. Energy-independent nonlocal interactions among the three nuclear fragments are obtained from realistic nucleon-nucleon interactions and consistent ab initio many-body wave functions of the clusters. The three-cluster Schrödinger equation is solved with bound-state boundary conditions by means of the hyperspherical-harmonic method on a Lagrange mesh. We discuss the formalism in detail and give algebraic expressions for systems of two single nucleons plus a nucleus. Using a soft similarity-renormalization-group evolved chiral nucleon-nucleon potential, we apply the method to a 4He+n+n description of 6He and compare the results to experiment and to a six-body diagonalization of the Hamiltonian performed within the harmonic-oscillator expansions of the no-core shell model. Differences between the two calculations provide a measure of core (4He) polarization effects.

Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States). Oak Ridge Leadership Computing Facility (OLCF); Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC)
Grant/Contract Number:
AC52-07NA27344
OSTI ID:
1248289
Report Number(s):
LLNL-JRNL-641181; PRVCAN
Journal Information:
Physical Review C, Nuclear Physics, Vol. 88, Issue 3; ISSN 0556-2813
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 28 works
Citation information provided by
Web of Science

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Cited By (7)

Nonlocalized clustering and evolution of cluster structure in nuclei journal August 2019
Effective field theory description of halo nuclei journal September 2017
He 6 nucleus in halo effective field theory journal October 2014
Experimental Evidence of a Variant Neutron Spectrum from the T ( t , 2 n ) α Reaction at Center-of-Mass Energies in the Range of 16–50 keV journal July 2018
Effective field theory description of halo nuclei text January 2017
Microscopic Clustering in Light Nuclei text January 2017
Nonlocalized Clustering and Evolution of Cluster Structure in Nuclei text January 2019