Omnès Matrix for Tensor Meson Decays
Published:Dec 29, 2025 18:25
•1 min read
•ArXiv
Analysis
This paper constructs a coupled-channel Omnès matrix for the D-wave isoscalar pi-pi/K-Kbar system, crucial for understanding the behavior of tensor mesons. The matrix is designed to satisfy fundamental physical principles (unitarity, analyticity) and is validated against experimental data. The application to J/psi decays demonstrates its practical utility in describing experimental spectra.
Key Takeaways
- •Develops a coupled-channel Omnès matrix for the pi-pi/K-Kbar system.
- •The matrix incorporates unitarity, analyticity, and experimental data.
- •Successfully applied to describe J/psi decays into pi-pi-gamma and K-K-gamma.
- •Provides a reliable tool for form-factor calculations and resonance studies.
Reference
“The Omnès matrix developed here provides a reliable dispersive input for form-factor calculations and resonance studies in the tensor-meson sector.”