Published January 3, 1991 | Version v1
Journal article Metadata-only

QCD determination of the strange-quark mass

Creators

  • 1. Cape Town Univ. (South Africa). Inst. of Theoretical Physics and Astrophysics
  • 2. Istituto Nazionale di Fisica Nucleare, Trieste (Italy)
  • 3. Trieste Univ. (Italy). Dipt. di Fisica Teorica

Description

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: mS = 266 ± 29 MeV, or mS (1 GeV) = 194 ± 4 MeV, where mS and m are the invariant and the running quark masses, respectively. (orig.)

Additional details

Publishing Information

Journal Title
Physics Letters, (Section) B
Journal Volume
253
Journal Issue
1/2
Series
Phys. Lett., B.
Journal Page Range
241-245
ISSN
0370-2693
CODEN
PYLBA

INIS

Country of Publication
Netherlands
Country of Input or Organization
Netherlands
INIS RN
22049359
Subject category
S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
Resource subtype / Literary indicator
Numerical Data
Descriptors DEI
ENERGY DEPENDENCE; LAPLACE TRANSFORMATION; PION-KAON INTERACTIONS; QUANTUM CHROMODYNAMICS; QUARKS; REST MASS; S WAVES; SCATTERING AMPLITUDES; STRANGE PARTICLES; SUM RULES; THEORETICAL DATA; VECTOR CURRENTS
Descriptors DEC
ALGEBRAIC CURRENTS; AMPLITUDES; CURRENTS; DATA; ELEMENTARY PARTICLES; EQUATIONS; FERMIONS; FIELD THEORIES; HADRON-HADRON INTERACTIONS; INFORMATION; INTEGRAL TRANSFORMATIONS; INTERACTIONS; MASS; MESON-MESON INTERACTIONS; NUMERICAL DATA; PARTIAL WAVES; PARTICLE INTERACTIONS; POSTULATED PARTICLES; QUANTUM FIELD THEORY; TRANSFORMATIONS