Exploring manifestation and nature of a dineutron in two-neutron emission using a dynamical dineutron model

Abstract

Emission of two neutrons or two protons in reactions and decays is often discussed in terms of "dineutron" or "diproton" emission. The discussion often leans intuitively on something described by Migdal-Watson approximation. In this work we propose a way to formalize situations of dineutron emission. It is demonstrated that properly formally defined dineutron emission may reveal properties which are drastically different from those traditionally expected, and properties which are actually observed in three-body decays.

arXiv comment11 pages, 11 Figures

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Cited by in corpus (8)

• Recent Progress in Two-proton Radioactivity
• Nucleon-nucleon correlations in the extreme oxygen isotopes
• Chronology of the three-body dissociation of ${}^8$He
• Magnetic dipole excitation and its sum rule in nuclei with two valence nucleons
• Supplemental note for "Two-fermion emission from spin-singlet and triplet resonances in one dimension"
• Pauli-principle driven correlations in four-neutron nuclear decays
• Three-body vs. dineutron approach to two-neutron radiative capture in ${}^6$He
• Asymptotic normalization coefficient method for two-proton radiative capture