Evidence for Symplectic Symmetry in Ab Initio No-Core Shell Model Results for Light Nuclei

Journal Article · Tue Apr 24 00:00:00 EDT 2007 · Submitted to Phys.Rev.Lett.

DOI:https://doi.org/10.1103/PhysRevLett.98.162503· OSTI ID:902736

Dytrych, Tomas; Sviratcheva, Kristina D; Bahri, Chairul; Draayer, Jerry P; Vary, James P

Clear evidence for symplectic symmetry in low-lying states of {sup 12}C and {sup 16}O is reported. Eigenstates of {sup 12}C and {sup 16}O, determined within the framework of the no-core shell model using the JISP16 NN realistic interaction, typically project at the 85-90% level onto a few of the most deformed symplectic basis states that span only a small fraction of the full model space. The results are nearly independent of whether the bare or renormalized effective interactions are used in the analysis. The outcome confirms Elliott's SU(3) model which underpins the symplectic scheme, and above all, points to the relevance of a symplectic no-core shell model that can reproduce experimental B(E2) values without effective charges as well as deformed spatial modes associated with clustering phenomena in nuclei.

• Research Organization: Stanford Linear Accelerator Center (SLAC)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC02-76SF00515
• OSTI ID: 902736
• Report Number(s): SLAC-PUB-12482; arXiv:0704.1108
• Journal Information: Submitted to Phys.Rev.Lett., Journal Name: Submitted to Phys.Rev.Lett.
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
EFFECTIVE CHARGE
EIGENSTATES
LIGHT NUCLEI
NUCLEI
SHELL MODELS
SYMMETRY
Theory-Nucl
HEPPH