Isospin symmetry breaking in an algebraic pairing Sp(4) model

2005/11/14 by K. D. Sviratcheva, A. I. Georgieva, J. P. Draayer
Chemistry · Physics and Astronomy · #Advanced NMR Techniques and Applications #Isoscalar #Isospin #Isovector #Mixing (physics) #Nuclear physics #Nuclear physics research studies #Nucleon #Pairing #Particle physics #Physics #Quantum Chromodynamics and Particle Interactions #Quantum mechanics #Symmetry (geometry) #Symmetry breaking #Weak isospin #nucl-th

paper · pdf · doi:10.1103/physrevc.72.054302

published as Phys.Rev.C72:054302,2005 · 8 pages, 2 figures

openalex publication_date 2005/11/14 · arxiv created 2007/03/22 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

Abstract

An exactly solvable \mathfraksp(4) algebraic approach extends beyond the traditional isospin-conserving nuclear interaction to bring forward effects of isospin symmetry breaking and isospin mixing resulting from a two-body nuclear interaction that includes proton-neutron (pn) and like-particle isovector pairing correlations plus significant isoscalar pn interactions. The model yields an estimate for the extent to which isobaric analog 0⁺ states in light and medium-mass nuclei may mix with one another and reveals possible, but still extremely weak, nonanalog \ensuremathβ-decay transitions.

Citations

• The evaluation ofVud, experiment and theory
• Shell model study of the neutron-rich nuclei aroundN=28
• Isospin mixing and Fermi transitions: Self-consistent deformed mean field calculations and beyond
• Charge symmetry breaking of the nucleon-nucleon interaction: ρ-ω mixing versus nucleon mass splitting
• Mapping the proton drip line up toA=70
• CP-Violation in the Renormalizable Theory of Weak Interaction