1998/02/09 by Silas R. Beane · 1 citation
Physics and Astronomy · #Black Holes and Theoretical Physics #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ph #hep-th
paper · pdf · doi:10.1103/physrevd.59.036001
published as Phys.Rev. D59 (1999) 036001 · 22 pages TeX, 1 eps figure, uses mtexsis.tex
arxiv created 1998/02/09 · openalex publication_date 1998/12/22 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
An empirically successful mass formula derived long ago from hadronic string models is not explained by symmetries of the QCD Lagrangian. Consider that M_\ensuremathρ2\ensuremath-M_\ensuremathπ2=MK*2\ensuremath-MK2 to a few percent accuracy. We derive this and other equal spacing relations using chiral symmetry and several assumptions about the chiral transformation properties of the hadronic mass-squared matrix. We discuss the possible significance of these assumptions in the context of QCD.