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Global-vector representation of the angular motion of few-particle systems II |
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| Authors: | Y Suzuki W Horiuchi M Orabi K Arai |
| Institution: | Department of Physics, and Graduate School of Science and Technology, Niigata University, Niigata, Japan Graduate School of Science and Technology, Niigata University, Niigata, Japan Department of Physics, Cairo University, Giza, Egypt Division of General Education, Nagaoka National College of Technology, Nagaoka, Japan |
| Abstract: | The angular motion of a few-body system is described with global vectors which depend on the positions of the particles. The previous study using a single global vector is extended to make it possible to describe both natural and unnatural parity states. Numerical examples include three- and four-nucleon systems interacting via nucleon-nucleon potentials of AV8 type and a 3α system with a nonlocal αα potential. The results using the explicitly correlated Gaussian basis with the global vectors are shown to be in good agreement with those of other methods. A unique role of the unnatural parity component, caused by the tensor force, is clarified in the 0? 1 state of 4He. The two-particle correlation function is calculated in the coordinate and momentum spaces to show different characteristics of the interactions employed. |
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