Mesonic Width Effects on the Momentum Dependence of the Rho-Omega Mixing Matrix Element

Abstract

It is shown, in a model independent way, that the large difference in rho and omega widths gives rise to a new source of momentum dependence for the rho-omega mixing matrix element. The q^2 dependence arising due to the meson widths leads to a significant alteration of the result obtained in the zero-width approximation usually discussed in the literature. The origin of this strong momentum dependence lies in the difference between the rho and omega meson widths.

9 pages. An additional figure illustrating the effect of a momentum dependent rho-meson width is included. This and related papers may also be obtained from http://www.phys.washington.edu/~derek/Publications.html

References in corpus (5)

• The Momentum Dependence of the $\rho -\omega$ Mixing Amplitude in a Hadronic Model
• Constraints on the momentum dependence of rho-omega mixing
• The Off Shell $\rho$-$\omega$ Mixing in the QCD Sum Rules
• Charge-Symmetry Breaking, Rho-Omega Mixing and the Quark Propagator
• Charge symmetry breaking via rho-omega mixing from model quark-gluon dynamics

Cited by in corpus (12)

• Rho-omega mixing, vector meson dominance and the pion form-factor
• QCD Sum Rules for Skeptics
• The Dipion Mass Spectrum In e+e- Annihilation and tau Decay: A Dynamical (rho0, omega, phi) Mixing Approach
• Extracting the rho-omega mixing amplitude from the pion form-factor
• Rho-Omega Mixing via QCD Sum Rules with Finite Mesonic Widths
• Finite-width effects on Delta baryons in QCD Sum Rules
• Extracting Br(omega->pi^+ pi^-) from the Time-like Pion Form-factor
• Quark-antiquark states of the lightest scalar mesons within the Nambu-Jona-Lasinio model with flavor-dependent coupling constants
• The Okamoto-Nolen-Schiffer anomaly without rho-omega mixing
• On extracting the rho-omega mixing amplitude from the pion form-factor
• Instanton Effects in QCD Sum Rules for the $0^{++}$ Hybrid
• Isospin-Breaking Vacuum-to-Pi^0,Eta Pseudoscalar Matrix Elements at Next-to-Leading Order in the Chiral Expansion