QCD determination of the strange-quark mass

Autor: N. Paver, C. van Gend, Cesareo A. Dominguez
Rok vydání: 1991
Předmět:
Zdroj: Physics Letters B. 253:241-245
ISSN: 0370-2693
DOI: 10.1016/0370-2693(91)91391-8
Popis: The strange-quark mass is determined from finite energy and Laplace transform QCD sum rules for the two-point function involving strangeness changing vector currents and their divergences. Improved QCD input and experimental data in the I = 1 2 , S-wave Kπ amplitude are used to obtain: m s = 266 ± 29 MeV , or m s (1 GeV ) = 194 ± 4 MeV , where m s and m are the invariant and the running quark masses, respectively.
Databáze: OpenAIRE