Light-Front Aspects of Chiral Symmetry

Details Light-Front Aspects of Chiral Symmetry Light-Front Aspects of Chiral Symmetry

2000-08-30

arxiv.org/abs/hep-th/0008236v1

Nucl.Phys.Proc.Suppl. 90 (2000) 57-60

Physics

High Energy Physics

High Energy Physics - Theory

5 pages, Latex2e, uses elsart.cls, to apper in the proceedings of the X. International Light-Cone Meeting, Heidelberg, June 20

Scientific paper

10.1016/S0920-5632(00)00873-2

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).

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