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arXiv · 1203.2515

In-Medium Similarity Renormalization Group for Open-Shell Nuclei

K. Tsukiyama·S. K. Bogner·A. Schwenk
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Abstract

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, $^6$Li and $^{18}$O, based on evolved chiral nucleon-nucleon interactions. For $^6$Li, the spectrum is in very good agreement with ab-initio results. For $^{18}$O, 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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K. Tsukiyama, S. K. Bogner, A. Schwenk. 2012-03-12. In-Medium Similarity Renormalization Group for Open-Shell Nuclei. https://doi.org/10.1103/physrevc.85.061304

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