1999/08/24 by Mirian E. Bracco, M. E. Bracco, F. S. Navarra +1
Engineering · Mathematics · Physics and Astronomy · #Black Holes and Theoretical Physics #Coupling (piping) #Coupling constant #Engineering #Geometry #Hyperon #Mathematics #Nucleon #Particle physics #Particle physics theoretical and experimental studies #Physics #QCD sum rules #Quantum Chromodynamics and Particle Interactions #Quantum chromodynamics #Sum rule in quantum mechanics #Symmetry (geometry) #hep-ph
paper · pdf · doi:10.1016/s0920-5632(00)00597-1
published in Nuclear Physics B - Proceedings Supplements 86(1-3), 417-420 (Elsevier BV) · 4 pages, 2 figures, espcrc2.sty included. Talk presented at QCD99, Montpellier, France (to appear in Nucl.Phys.B Proc.Suppl.)
arxiv created 1999/08/24 · openalex publication_date 2000/06/01 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
The NKY coupling constant for Y = Λ and Σ is evaluated in a QCD sum rule calculation. We discuss and extend the result of a previous analysis in the \rlap/qiγ5 structure and compare it with the result obtained with the use of the γ5 σμν structure. We find a huge violation of the SU(3) symmetry in the γ5 σμν structure.