2002/02/19 by Hans-Christian Pauli, Pauli, Hans-Christian
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #hep-ph
paper · pdf · doi:10.48550/arxiv.hep-ph/0202187
LaTeX, 8 pages, 1 figure, 6 tables, 8 references. Submitted to Nuclear Physics B (2002)
arxiv created 2002/02/19 · arxiv updated 2009/11/30
The \uparrow\downarrow-model has produced the physical masses of all flavor-asymmetric mesons like the π^± or the ρ^±. Can the same model also account for the flavor-symmetric mesons like the π0 or the ρ0? -- By adjusting one parameter in a 5×5-matrix, the π-η degeneracy is lifted and the η-η' splitting falls into the right ball park. The isospin triplets for pions and rhos are caused the mass-degeneracy of the up and down quark.