Light meson radial Regge trajectories

2002/04/08 by А. М. Бадалян, A. M. Badalian, B. L. G. Bakker +1 · 2 citations
Mathematics · Physics and Astronomy · #Classical mechanics #Combinatorics #High-Energy Particle Collisions Research #Loop (graph theory) #Mathematics #Meson #Metastability #Particle physics #Particle physics theoretical and experimental studies #Physics #Quantum Chromodynamics and Particle Interactions #Quantum electrodynamics #Quantum mechanics #String (physics) #Tension (geology) #Theoretical physics #hep-ex #hep-ph

paper · pdf · doi:10.1103/physrevd.66.034026

published as Phys.Rev.D66:034026,2002 · 25 pages, 1 figure

arxiv created 2002/04/08 · openalex publication_date 2002/08/26 · arxiv updated 2014/11/17 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

Abstract

A new physical mechanism is suggested to explain the universal depletion of high meson excitations. It takes into account the appearance of holes inside the string world sheet due to qq pair creation when the length of the string exceeds the critical value R₁\ensuremath≃1.4 fm. It is argued that a delicate balance between large N_c loop suppression and a favorable gain in the action, produced by holes, creates a new metastable (predecay) stage with a renormalized string tension which now depends on the separation r. This results in smaller values of the slope of the radial Regge trajectories, in good agreement with the analysis of experimental data of Anisovich, Anisovich, and Sarantsev.

Citations

• Proton-antiproton annihilation and meson spectroscopy with the Crystal Barrel
• High precision study of theQQ¯potential from Wilson loops at large distances
• On Gauge Invariance and Vacuum Polarization
• First evidence of Nf-dependence in the QCD interquark potential

Cited by

• Radial Regge trajectories and leptonic widths of the isovector mesons
• Correlators of hadron currents: The model and the ALEPH data on τ-decay