Retardation effects in the rotating string model

Abstract

A new method to study the retardation effects in mesons is presented. Inspired from the covariant oscillator quark model, it is applied to the rotating string model in which a non zero value is allowed for the relative time between the quark and the antiquark. This approach leads to a retardation term which behaves as a perturbation of the meson mass operator. It is shown that this term preserves the Regge trajectories for light mesons, and that a satisfactory agreement with the experimental data can be obtained if the quark self-energy contribution is added. The consequences of the retardation on the Coulomb interaction and the wave function are also analyzed.

4 figures

References in corpus (9)

• Big Bang Nucleosynthesis (in "The Review of Particle Properties" 2004)
• Nonperturbative corrections to the quark self-energy
• Light-meson orbital excitations in the QCD string approach
• Light Meson Spectra and Instanton Induced Forces
• Auxiliary fields and hadron dynamics
• The quark-gluon Mixed Condensate calculated via Field Correlators
• Lagrange mesh, relativistic flux tube, and rotating string
• Auxiliary fields and the flux tube model
• Quark self-energy and relativistic flux tube model

Cited by in corpus (5)

• Gluons in glueballs: Spin or helicity?
• Baryonic mass formula in large $N_c$ QCD versus quark model
• Meson and glueball spectra with the relativistic flux tube model
• Covariant oscillator quark model for glueballs and baryons
• String deformations induced by retardation effects