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.

Paper doi abstract bibtex

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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