Benchmark calculations for 3H, 4He, 16O and 40Ca with ab-initio coupled-cluster theory

Details Benchmark calculations for 3H, 4He, 16O and 40Ca with ab-initio coupled-cluster theory Benchmark calculations for 3H, 4He, 16O and 40Ca with ab-initio coupled-cluster theory

2007-07-10

arxiv.org/abs/0707.1516v1

Phys.Rev.C76:044305,2007

Physics

Nuclear Physics

Nuclear Theory

8 pages, 13 figures

Scientific paper

10.1103/PhysRevC.76.044305

We present ab-initio calculations for 3H, 4He, 16O, and 40Ca based on two-nucleon low-momentum interactions Vlowk within coupled-cluster theory. For 3H and 4He, our results are within 70 keV and 10 keV of the corresponding Faddeev and Faddeev-Yakubovsky energies. We study in detail the convergence with respect to the size of the model space and the single-particle basis. For the heavier nuclei, we report practically converged binding energies and compare with other approaches.

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