Continuum and three-nucleon force effects on energy levels
- Technical Univ. of Darmstadt (Germany). Inst. of Nuclear Physics
- TRIUMF, Vancouver, BC (Canada)
- Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
- Technical Univ. of Darmstadt (Germany). Inst. of Nuclear Physics; TRIUMF, Vancouver, BC (Canada)
In this paper, we extend the recently proposed ab initio no-core shell model with continuum to include three-nucleon (3N) interactions beyond the few-body domain. The extended approach allows for the assessment of effects of continuum degrees of freedom as well as of the 3N force in ab initio calculations of structure and reaction observables of p- and lower-sd-shell nuclei. As a first application we concentrate on energy levels of the 9Be system for which all excited states lie above the n-8Be threshold. For all energy levels, the inclusion of the continuum significantly improves the agreement with experiment, which was an issue in standard no-core shell model calculations. Furthermore, we find the proper treatment of the continuum indispensable for reliable statements about the quality of the adopted 3N interaction from chiral effective field theory. Finally, in particular, we find the 1/2+ resonance energy, which is of astrophysical interest, in good agreement with experiment.
- 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); Technical Univ. of Darmstadt (Germany); TRIUMF, Vancouver, BC (Canada)
- Sponsoring Organization:
- USDOE Office of Science (SC), Nuclear Physics (NP); German Research Foundation (DFG); German Federal Ministry of Education and Research (BMBF); Natural Sciences and Engineering Research Council of Canada (NSERC)
- Grant/Contract Number:
- AC52-07NA27344; AC02-05CH11231; SFB 634; 06DA7047I; 401945-2011
- OSTI ID:
- 1255175
- Alternate ID(s):
- OSTI ID: 1180145
- Report Number(s):
- LLNL-JRNL-663595
- Journal Information:
- Physical Review C, Nuclear Physics, Vol. 91, Issue 2; ISSN 0556-2813
- Publisher:
- American Physical Society (APS)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
Web of Science
Ab initio predictions for polarized deuterium-tritium thermonuclear fusion
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journal | January 2019 |
Emergent properties of nuclei from ab initio coupled-cluster calculations
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journal | May 2016 |
Emergent properties of nuclei from ab initio coupled-cluster calculations | text | January 2016 |
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