Retardation effects in the rotating string model

Details Retardation effects in the rotating string model Retardation effects in the rotating string model

2005-05-19

arxiv.org/abs/hep-ph/0505168v2

Phys.Rev.D72:114004,2005

Physics

High Energy Physics

High Energy Physics - Phenomenology

4 figures

Scientific paper

10.1103/PhysRevD.72.114004

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.

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