A Λnn three-body resonance
1 Department of Physics, Faculty of Engineering, Kyushu Institute of Technology, 1-1 Sensuicho, Tobata, Kitakyushu 804-8550, Fukuoka, Japan
2 Faculty of Applied Physics, Okayama University of Science, 1-1 Ridaicho, Okayama 700-0005, Japan
3 Research Center for Nuclear Physics, Osaka University, Ibaraki 567-0047, Osaka Japan
Published online: 25 March 2016
We solved the Faddeev equations in the Λnn system Jπ = ½+, T = 1). There is no bound state but found a resonance state. Complex Energy Method helps to find the location of the resonance energy in the complex Riemann sheet. We obtained a resonance energy E = 0.25 − 0.40i MeV using the realistic NN and YN Nijmegen potential. As a preliminary result the recent Nijmegen YN potential (NSC97f) gives 0.60± 0.05 - (0.25 ± 0.05)i MeV. We discuss importance of an irreducible three-body force to make it bound.
© Owned by the authors, published by EDP Sciences, 2016
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