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arXiv · hep-ph/0310095

Chiral Symmetry in Light-front QCD

Meng-Hsiu Wu·Wei-Min Zhang
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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.

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Meng-Hsiu Wu, Wei-Min Zhang. 2004-04-28. Chiral Symmetry in Light-front QCD. https://doi.org/10.1088/1126-6708%2F2004%2F04%2F045

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