Journal
PHYSICAL REVIEW C
Volume 85, Issue 6, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevC.85.061304
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Funding
- HPCI
- UNEDF SciDAC Collaboration under DOE [DE-FC02-07ER41457]
- NSF [PHY-1068648]
- Helmholtz Alliance Program of the Helmholtz Association [HA216/EMMI]
- DFG [SFB 634]
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We present a nonperturbative derivation of effective valence-shell Hamiltonians in the framework of the recently developed in-medium similarity renormalization group (IM-SRG). As a first application, we calculate the spectra of p- and sd-shell nuclei, Li-6 and O-18, based on evolved chiral nucleon-nucleon interactions. For Li-6, the spectrum is in very good agreement with ab initio results. For O-18, the IM-SRG provides a new method for the shell model to systematically go beyond effective interaction techniques based on diagrammatic expansions.
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