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arXiv · 0804.0067

Global-Vector Representation of the Angular Motion of Few-Particle Systems II

Y. Suzuki·W. Horiuchi·M. Orabi·K. Arai
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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 3$α$ 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 $^4$He. Two-particle correlation function is calculated in the coordinate and momentum spaces to show different characteristics of the interactions employed.

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Y. Suzuki, W. Horiuchi, M. Orabi, K. Arai. 2008-04-01. Global-Vector Representation of the Angular Motion of Few-Particle Systems II. https://doi.org/10.1007/s00601-008-0200-3

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