English

An Approach towards a Constituent Quark Model on the Light Cone

High Energy Physics - Phenomenology 2015-04-28 v3

Abstract

We use the vacuum expectation value of a Wegner-Wilson loop representing a fast moving quark-antiquark pair to derive the light cone Hamiltonian for a qqˉq\bar q meson. We solve the corresponding Schr\"odinger equation for various trial wave functions. The result shows how confinement determines the meson mass and wave function for valence quarks on the light cone. We also parametrize the effect of the spin-dependent splitting for a light meson and charmonium. The correct chiral-symmetry breaking pattern for the pion mass is obtained due to the self-energy of the quark.

Keywords

Cite

@article{arxiv.0804.3490,
  title  = {An Approach towards a Constituent Quark Model on the Light Cone},
  author = {H. J. Pirner and B. Galow and O. Schlaudt},
  journal= {arXiv preprint arXiv:0804.3490},
  year   = {2015}
}

Comments

17 pages and 5 figures

R2 v1 2026-06-21T10:33:27.813Z