Abstract
A low-momentum effective nucleon-nucleon (NN) interaction V l o w - k is derived by integrating out the high momentum modes of modern realistic NN potentials V N N . The Kuo-Lee-Ratcliff folded diagram method together withthe Andreozzi-Lee-Suzuki iteration method are employed to carry out the integration. Our V l o w - k is confined within a cut-off momentum A. The deuteron binding energy, low-energy phase shifts and half-on-shell T-matrix of V N N are all preserved by V l o w - k . For A within ∼ 2 fm - 1 , the V l o w - k derived from various NN potential models are very close to each other, although these models themselves are very different. V l o w - k is a smooth potential for A in the vicinity 2fm - 1 , and appears to be suitable for being used directly as the shell model effective interaction, without first calculating the Brueckner G-matrix. Application of V l o w - k to halo nuclei is discussed.
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