On the Origin of Nuclear Clustering

作者：Jacek Okołowicz, Marek Płoszajczak, Witold Nazarewicz · 发表于：Progress of Theoretical Physics Supplement · 年份：2012 · DOI：10.1143/ptps.196.230 · 被引用次数：66 · 研究领域：Nuclear physics research studies、Quantum Mechanics and Non-Hermitian Physics、Spectral Theory in Mathematical Physics

Clustering is one of the most complex phenomena known to the structure of atomic nuclei. A comprehensive description of this ubiquitous phenomenon goes beyond standard shell model and cluster model frameworks. We argue that clustering is a consequence of an openness of the nuclear many-body system, which leads to the collectivization of Shell Model (SM) states. To illustrate this point, we study the collective mixing of J = 0+ SM states due to the coupling to a common ℓ= 0 proton decay channel in 16Ne and 24S. We show that the energy of maximal collective coupling of SM eigenstates depends mainly on the Coulomb barrier; hence, the discussion also pertains to situations involving complex clusters.