TY - JOUR
T1 - Many-body correlations and the truncation of the shell-model Hilbert space
AU - Monti, Francesca
AU - Bonsignori, G.
AU - Savoia, M.
AU - Gambhir, Y. K.
PY - 1990
Y1 - 1990
N2 - Three- and four-body correlations arising because of the truncation of the configuration space are calculated. These are found to be rather small. Interestingly, three-body and four-body parts of the correlations in general have opposite signs and cancel each other. Only rarely these add and become significant. This, therefore, lends support to the usage of the effective two-body interactions in the nuclear structure calculations in relatively small model spaces. It is also explicitly demonstrated through the results of the approximate shell-model calculations using broken-pair formalism.
AB - Three- and four-body correlations arising because of the truncation of the configuration space are calculated. These are found to be rather small. Interestingly, three-body and four-body parts of the correlations in general have opposite signs and cancel each other. Only rarely these add and become significant. This, therefore, lends support to the usage of the effective two-body interactions in the nuclear structure calculations in relatively small model spaces. It is also explicitly demonstrated through the results of the approximate shell-model calculations using broken-pair formalism.
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U2 - 10.1103/PhysRevC.41.1311
DO - 10.1103/PhysRevC.41.1311
M3 - Article
AN - SCOPUS:35949011354
SN - 0556-2813
VL - 41
SP - 1311
EP - 1314
JO - Physical Review C - Nuclear Physics
JF - Physical Review C - Nuclear Physics
IS - 3
ER -