1996/04/18 by E. S. Ackleh, T. Barnes, Eric S. Swanson +1 · 21 citations
Physics and Astronomy · #Amplitude #Bar (unit) #Gluon #High-Energy Particle Collisions Research #Meson #Omega #Particle physics #Particle physics theoretical and experimental studies #Physics #Production (economics) #Quantum Chromodynamics and Particle Interactions #Quantum chromodynamics #Quantum mechanics #Scalar (mathematics) #hep-ph
paper · pdf · doi:10.1103/physrevd.54.6811
published as Phys.Rev.D54:6811-6829,1996 · 44 pages, 22 eps figures, RevTex, complete postscript file available at http://csep2.phy.ornl.gov/theory_group/people/barnes/pubs/abs.ps
arxiv created 1996/04/18 · openalex publication_date 1996/12/01 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
Open-flavor strong decays are mediated by qq pair production, which is known to occur dominantly with 3P0 quantum numbers. The relation of the phenomenological 3P0 model of these decays to "microscopic" QCD decay mechanisms has never been established clearly. In this paper we investigate qq meson decay amplitudes assuming pair production from the scalar confining interaction (sKS) and from one gluon exchange (OGE). sKS pair production predicts decay amplitudes of approximately the correct magnitude and (D)/(S) amplitude ratios in b1\ensuremath→\ensuremathω\ensuremathπ and a1\ensuremath→\ensuremathρ\ensuremathπ which are close to experiment. The OGE decay amplitude is found to be subdominant in most cases, a notable exception being 3P0\ensuremath→1S0+1S0. The full sKs + OGE amplitudes differ significantly from 3P0 model predictions in some channels and can be distinguished experimentally, for example, through an accurate comparison of the (D)/(S) amplitude ratios in b1\ensuremath→\ensuremathω\ensuremathπ and a1\ensuremath→\ensuremathρ\ensuremathπ.