Contributions of chiral two- and three-nucleon interactions to closed shell nuclei
1 Institute of Physics, Academia Sinica, Taipei, 11529, Taiwan, ROC
2 Dept. of Electro-Optical Engineering, National Taipei University of Technology, Taipei, 10608, Taiwan, ROC
3 Department of Physics, State University New York at Stony Brook, Stony Brook, New York 11794, USA
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Published online: 25 March 2016
Using two-nucleon force alone is usually inadequate to interpret nuclear systems’ experimental data. We adopt a chiral N3LO two-nucleon potential V2N with the inclusion of an in-medium three-nucleon (NNN) force V̄3N to calculate binding energies of closed-shell nuclei. The matrix elements of low momentum nucleon-nucleon potential Vlow−k obtained from integrating the high momentum part of a realistic potentials is inputted in the particle-particle hole-hole ring diagram calculation to study nuclear properties. Nuclear binding energies are accurately reproduced. Without this three-nucleon force, the nuclear binding energy is too weak, as already known. The correction from ring diagrams of order higher than 1 can not be ignored.
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