Abstract

We study the deuteron-like correlation of the valence proton and neutron with the T = 0 channel in 18 F using an efficient calculational formalism; the cluster-orbital shell model approach. In this study, we show a particular configuration [j 1 ⊗ j 2 ]T J = [d 5/2 ⊗ d 3/2 ]0 1 is the key ingredient for the T = 0 pair formation. Also, the continuum contributions plays an important role of the spatial correlation of the proton and neutron.

Highlights

  • IntroductionIn the case for the proton and neutron in a nucleus, the spinorbit interaction from the core nucleus separates the single-particle orbits of j≷, and the coupling scheme is changed from the free deuteron

  • It has been pointed out that the [ j1 ⊗ j2]TJ = [ j> ⊗ j

  • By using the 16O+N potential which reproduces the bound and unbound states of 17O and 17F [5], we show how the [ j> ⊗ j

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Summary

Introduction

In the case for the proton and neutron in a nucleus, the spinorbit interaction from the core nucleus separates the single-particle orbits of j≷, and the coupling scheme is changed from the free deuteron. We examine how the valence proton and neutron in 18F are spatially localized with the presence of the [ j> ⊗ j ⊗ j

Model and formalism
Physical quantities of 18F
Configuration dependence and deuteron-like correlation
Summary and discussion

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