Chiral Symmetry in Light-front QCD
High Energy Physics - Phenomenology
2009-11-10 v4
Abstract
The definition of chiral transformations in light-front field theory is very different from the conventional form in equal-time formalism. We study the consistency of chiral transformations and chiral symmetry in light-front QCD and derive a complete new light-front axial-vector current for QCD. The breaking of chiral symmetry in light-front QCD is only associated with helicity flip interaction between quarks and gluons. Remarkably, the new axial-vector current does not contain the pion pole part so that the associate chiral charge smoothly describes pion transitions for various hadronic processes.
Cite
@article{arxiv.hep-ph/0310095,
title = {Chiral Symmetry in Light-front QCD},
author = {Meng-Hsiu Wu and Wei-Min Zhang},
journal= {arXiv preprint arXiv:hep-ph/0310095},
year = {2009}
}
Comments
15 pages, no figure, JHEP style, added reference and corrected typos and some changed content