Relativistic constituent quark model with infrared confinement
Abstract
We refine the relativistic constituent quark model developed in our previous papers to include the confinement of quarks. It is done, first, by introducing the scale integration in the space of alpha-parameters, and, second, by cutting this scale integration on the upper limit which corresponds to an infrared cutoff. In this manner one removes all possible thresholds presented in the initial quark diagram. The cutoff parameter is taken to be the same for all physical processes. We adjust other model parameters by fitting the calculated quantities of the basic physical processes to available experimental data. As an application, we calculate the electromagnetic form factors of the pion and the transition form factors of the omega and eta Dalitz decays.
Keywords
Cite
@article{arxiv.0912.3710,
title = {Relativistic constituent quark model with infrared confinement},
author = {Tanja Branz and Amand Faessler and Thomas Gutsche and Mikhail A. Ivanov and Jurgen G. Korner and Valery E. Lyubovitskij},
journal= {arXiv preprint arXiv:0912.3710},
year = {2010}
}
Comments
19 pages, 8 figures, accepted for publication in Phys. Rev. D