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18 April 2024 |
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Low-momentum nucleon-nucleon interaction and its application to the few-nucleon systems | S. Fujii
; E. Epelbaum
; H. Kamada
; R. Okamoto
; K. Suzuki
; W. Gloeckle
; | Date: |
19 Apr 2004 | Journal: | Phys.Rev. C70 (2004) 024003 | Subject: | nucl-th | Affiliation: | Univ. of Tokyo), E. Epelbaum (Jefferson Laboratory), H. Kamada (Kyushu Ins. of Tech.), R. Okamoto (Kyushu Ins. of Tech.), K. Suzuki (Kyushu Ins. of Tech.), W. Gloeckle (Ruhr-U. Bochum | Abstract: | Low-momentum nucleon-nucleon interactions are derived within the framework of a unitary-transformation theory, starting with realistic nucleon-nucleon interactions. A cutoff momentum Lambda is introduced to specify a border between the low- and high-momentum spaces. By the Faddeev-Yakubovsky calculations the low-momentum interactions are investigated with respect to the dependence of ground-state energies of ^3H and ^4He on the parameter Lambda. It is found that we need the momentum cutoff parameter Lambda >= 5 fm^-1 in order to reproduce satisfactorily the exact values of the binding energies for ^3H and ^4He. The calculation with Lambda =2 fm^-1 recommended by Bogner et al. leads to considerable overbinding at least for the few-nucleon systems. | Source: | arXiv, nucl-th/0404049 | Services: | Forum | Review | PDF | Favorites |
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