Constraints on the momentum dependence of rho-omega mixing

1994/05/31 by H.B. O’Connell, H. B. O'Connell, B. C. Pearce +3 · 2 citations
Chemistry · Physics and Astronomy · #Advanced NMR Techniques and Applications #Nuclear physics research studies #Quantum Chromodynamics and Particle Interactions #hep-ph #nucl-th

paper · pdf · doi:10.1016/0370-2693(94)00991-0

published as Phys.Lett.B336:1-5,1994 · 8 pages. Publication details added to title page

openalex publication_date 1994/09/01 · arxiv created 1998/05/28 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

Within a broad class of models we show that the amplitude for rho⁰-omega mixing must vanish at the transition from timelike to spacelike four momentum. Hence in such models the mixing is either zero everywhere or is necessarily momentum-dependent. This lends support to the conclusions of other studies of rho-omega mixing and calls into question standard assumptions about the role of rho-omega mixing in the theoretical understanding of charge-symmetry breaking in nuclear systems.

Citations

• The Nolen-Schiffer anomaly and isospin symmetry breaking in nuclear matter
• Off-shell ρ-ω mixing in QCD sum rules
• Momentum dependence of the ρ-ω mixing amplitude in a hadronic model

Cited by

• Isospin breaking andω→π+π−decay
• ΔI = 1 axial-vector mixing and charge symmetry breaking