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arXiv · hep-ph/9809338

Determination of the strange-quark mass from QCD pseudoscalar sum rules

C. A. Dominguez·L. Pirovano·K. Schilcher
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Abstract

A new determination of the strange-quark mass is discussed, based on the two-point function involving the axial-vector current divergences. This Green function is known in perturbative QCD up to order O(alpha_s^3), and up to dimension-six in the non-perturbative domain. The hadronic spectral function is parametrized in terms of the kaon pole, followed by its two radial excitations, and normalized at threshold according to conventional chiral-symmetry. The result of a Laplace transform QCD sum rule analysis of this two-point function is: m_s(1 GeV^2) = 155 pm 25 MeV.

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C. A. Dominguez, L. Pirovano, K. Schilcher. 1998-09-11. Determination of the strange-quark mass from QCD pseudoscalar sum rules. https://doi.org/10.1016/s0920-5632(99)00185-1

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