Ab initio coupled-cluster effective interactions for the shell model: Application to neutron-rich oxygen and carbon isotopes. Jansen, G. R., Engel, J., Hagen, G., Navratil, P., & Signoracci, A. Physical Review Letters, 113(14):142502, oct, 2014.
Ab initio coupled-cluster effective interactions for the shell model: Application to neutron-rich oxygen and carbon isotopes [link]Paper  doi  abstract   bibtex   
We derive and compute effective valence-space shell-model interactions from ab initio coupled-cluster theory and apply them to open-shell and neutron-rich oxygen and carbon isotopes. Our shell-model interactions are based on nucleon-nucleon and three-nucleon forces from chiral effective-field theory. We compute the energies of ground and low-lying states, and find good agreement with experiment. In particular, our computed 2+ states are consistent with N=14,16 shell closures in O22,24, and a weaker N=14 shell closure in C20. We find good agreement between our coupled-cluster effective-interaction results with those obtained from standard single-reference coupled-cluster calculations for up to eight valence neutrons.
@article{jansen_ab_2014,
abstract = {We derive and compute effective valence-space shell-model interactions from ab initio coupled-cluster theory and apply them to open-shell and neutron-rich oxygen and carbon isotopes. Our shell-model interactions are based on nucleon-nucleon and three-nucleon forces from chiral effective-field theory. We compute the energies of ground and low-lying states, and find good agreement with experiment. In particular, our computed 2+ states are consistent with N=14,16 shell closures in O22,24, and a weaker N=14 shell closure in C20. We find good agreement between our coupled-cluster effective-interaction results with those obtained from standard single-reference coupled-cluster calculations for up to eight valence neutrons.},
annote = {From Duplicate 2 (Ab initio coupled-cluster effective interactions for the shell model: Application to neutron-rich oxygen and carbon isotopes - Jansen, G. R.; Engel, J.; Hagen, G.; Navratil, P.; Signoracci, A.)

Publisher: American Physical Society},
archivePrefix = {arXiv},
arxivId = {1402.2563},
author = {Jansen, G. R. and Engel, J. and Hagen, G. and Navratil, P. and Signoracci, A.},
doi = {10.1103/PhysRevLett.113.142502},
eprint = {1402.2563},
issn = {10797114},
journal = {Physical Review Letters},
month = {oct},
number = {14},
pages = {142502},
title = {{Ab initio coupled-cluster effective interactions for the shell model: Application to neutron-rich oxygen and carbon isotopes}},
url = {https://link.aps.org/doi/10.1103/PhysRevLett.113.142502 http://link.aps.org/doi/10.1103/PhysRevLett.113.142502},
volume = {113},
year = {2014}
}

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