Strange quark mass from finite energy QCD sum rules to five loops

  title={Strange quark mass from finite energy QCD sum rules to five loops},
  author={Cesareo A. Dominguez and Nasrallah F. Nasrallah and Raoul Rontsch and Karl Schilcher},
  journal={Journal of High Energy Physics},
The strange quark mass is determined from a new QCD Finite Energy Sum Rule (FESR) optimized to reduce considerably the systematic uncertainties arising from the hadronic resonance sector. As a result, the main uncertainty in this determination is due to the value of ΛQCD. The correlator of axial-vector divergences is used in perturbative QCD to five-loop order, including quark and gluon condensate contributions, in the framework of both Fixed Order (FOPT), and Contour Improved Perturbation… 

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