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hep-th2004
Sigma Mass in the Large N Limit of QCD
Vikram Vyas
We study the leading contribution to the scalar and the pseudoscalar two-point function in the large N expansion of QCD using the worldline techniques. We find that in this limit t…
hep-th2001
Chiral Symmetry and Meson Vertex Operators in QCD Strings
Vikram Vyas
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…
hep-th2000
Introducing Quarks in Confining Strings via the Fermionic Wilson Loop
Vikram Vyas
In the world line representation of the fermionic effective action for QCD the interaction between Fermions and the gauge field is contained in the fermionic Wilson loop, namely th…