# Chiral Symmetry and Meson Vertex Operators in QCD Strings

@article{Vyas2001ChiralSA, title={Chiral Symmetry and Meson Vertex Operators in QCD Strings}, author={Vikram M. Vyas}, journal={arXiv: High Energy Physics - Theory}, year={2001} }

The worldline representation of the one loop fermionic effective action is used to obtain the vertex operator for the pion and the sigma in QCD strings. The vertex operator of the scalar sigma is distinguished from that of the pseudo-scalar pion by the presence of an additional operator m V_{0} where m is the current quark mass and V_{0} is a vertex operator that would describe a tachyon in the open bosonic string theory. This leads to a relation between the sigma propagator and the pion…

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