Spectral functions in QCD

@article{Schilcher1981SpectralFI,
  title={Spectral functions in QCD},
  author={Karl Schilcher and Minh D. Tran and Nasrallah F. Nasrallah},
  journal={Nuclear Physics},
  year={1981},
  volume={181},
  pages={91-104}
}
32 Citations
QCD sum rules I: Perturbative results for current correlators
New results are given to two-loop order and for quark masses of arbitrary flavour for the perturbative contribution to the coefficient function of the unit operator in the operator product expansion
The master two-loop diagram with masses
In every mass case needed for QCD and QED two-point functions, the most difficult two-loop scalar Feynman diagram is reduced, by a systematic dispersive method, to a single integral of logarithms,
...
...

References

SHOWING 1-7 OF 7 REFERENCES
Precise Relations between the Spectra of Vector and Axial-Vector Mesons
Two sum rules are derived, relating moments of the spectral functions of the vector and axial-vector currents. If it is assumed that the $\ensuremath{\rho}$ and $A1$ mesons dominate these moments,
Non-Lagrangian Models of Current Algebra
An alternative is proposed to specific Lagrangian models of current algebra. In this alternative there are no explicit canonical fields, and operator products at the same point [say,