Chiral Symmetry in Light-Cone Field Theory

Details Chiral Symmetry in Light-Cone Field Theory Chiral Symmetry in Light-Cone Field Theory

2004-03-18

arxiv.org/abs/hep-th/0403186v2

Phys.Rev. D70 (2004) 025015

Physics

High Energy Physics

High Energy Physics - Theory

13 pages, revtex; v2: minor corrections, 3 references added, to appear in PRD

Scientific paper

10.1103/PhysRevD.70.025015

An analysis of spontaneously broken chiral symmetry in light-cone field theory is presented. The non-locality inherent to light-cone field theory requires revision of the standard procedure in the derivation of Ward-Takahashi identities. We derive the general structure of chiral Ward-Takahashi identities and construct them explicitly for various model field theories. Gell-Mann-Oakes-Renner relations and relations between fermion propagators and the structure functions of Nambu-Goldstone bosons are discussed and the necessary modifications of the Ward-Takahashi identities due to the axial anomaly are indicated.

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