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

TL;DR

This paper introduces a formal framework for understanding dineutron emission in nuclear reactions, revealing properties that differ from traditional expectations and aligning with observed three-body decay phenomena.

Contribution

It proposes a formalized approach to characterize dineutron emission, challenging traditional intuitive models and providing new insights into three-body decay behaviors.

Findings

Dineutron emission properties can significantly differ from traditional expectations.

Proper formalization reveals new characteristics of dineutron emission.

Results align with observed behaviors in three-body nuclear decays.

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.