Off-shell ρ-ω mixing in QCD sum rules

1993/04/26 by T. Hatsuda, Tetsuo Hatsuda, Ernest M. Henley +4 · 9 citations
Physics and Astronomy · #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ph #nucl-th

paper · pdf · doi:10.1103/physrevc.49.452

published as Phys.Rev.C49:452-463,1994 · 26 pages + 11 figures (PostScript)

arxiv created 1993/04/26 · openalex publication_date 1994/01/01 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/30

Abstract

The q² dependence of the \ensuremathρ-\ensuremathω mixing amplitude is analyzed with the use of QCD sum rules and dispersion relations. Going off shell the mixing decreases, changes sign at q²\ensuremath≃0.4m_\mathrm\ensuremathρ²>0, and is negative in the spacelike region. Implications of this result for the isospin breaking part of the nuclear force are discussed.

Cited by

• Vector meson dominance and ρ-ω mixing
• Self-consistent description of finite nuclei based on a relativistic quark model
• Higher meson resonances inρ→π0π0γandω→π0π0γ
• ExtractingB(ω→π+π−)from the timelike pion form factor
• A quark-meson coupling model for nuclear and neutron matter
• The Nolen-Schiffer anomaly and isospin symmetry breaking in nuclear matter
• Constraints on the momentum dependence of rho-omega mixing
• Isospin breaking andω→π+π−decay
• ΔI = 1 axial-vector mixing and charge symmetry breaking