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arXiv · hep-th/0008236

Light-Front Aspects of Chiral Symmetry

L. Martinovic·J. P. Vary
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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).

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L. Martinovic, J. P. Vary. 2000-08-30. Light-Front Aspects of Chiral Symmetry. https://doi.org/10.1016/s0920-5632(00)00873-2

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