Light-Front Aspects of Chiral Symmetry
High Energy Physics - Theory
2009-10-31 v1
Abstract
Spontaneous chiral symmetry breaking and axial anomaly are studied in the light-front formulation. The existence of multiple vacua and a Nambu-Goldstone boson, both related to dynamical fermion zero modes, are demonstrated within a simple sigma model with fermions. The Weyl gauge formulation and a consistent gauge invariant point-splitting regularization, which includes the light front time, are crucial for obtaining the anomaly in the massive Schwinger model and QED(3+1).
Keywords
Cite
@article{arxiv.hep-th/0008236,
title = {Light-Front Aspects of Chiral Symmetry},
author = {L. Martinovic and J. P. Vary},
journal= {arXiv preprint arXiv:hep-th/0008236},
year = {2009}
}
Comments
5 pages, Latex2e, uses elsart.cls, to apper in the proceedings of the X. International Light-Cone Meeting, Heidelberg, June 2000