Toward Understanding the Microscopic Origin of Nuclear Clustering

Journal Article · Tue Jan 01 00:00:00 EST 2013 · Fortschritte der Physik

DOI:https://doi.org/10.1002/prop.201200127· OSTI ID:1091682

Okolowicz, J. ^[1]; Nazarewicz, Witold ^[2]; Ploszajczak, M. ^[3]

---

1. Institute of Nuclear Physics, Polish Academy of Sciences
2. UTK/ORNL/University of Warsaw
3. Grand Accelerateur National d'Ions Lourds (GANIL)

Open Quantum System (OQS) description of a many-body system involves interaction of Shell Model (SM) states through the particle continuum. In realistic nuclear applications, this interaction may lead to collective phenomena in the ensemble of SM states. We claim that the nuclear clustering is an emergent, near-threshold phenomenon, which cannot be elucidated within the Closed Quantum System (CQS) framework. We approach this problem by investigating the near-threshold behavior of Exceptional Points (EPs) in the realistic Continuum Shell Model (CSM). The consequences for the alpha-clustering phenomenon are discussed.

• Research Organization: Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
• Sponsoring Organization: USDOE Office of Science (SC)
• DOE Contract Number: DE-AC05-00OR22725
• OSTI ID: 1091682
• Journal Information: Fortschritte der Physik, Vol. 61, Issue 2-3; ISSN 0015-8208
• Country of Publication: United States
• Language: English