2003/09/24 by B. S. Zou, H. C. Chiang, H.C. Chiang · 9 citations
Physics and Astronomy · #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ph
paper · pdf · doi:10.1103/physrevd.69.034004
published as Phys.Rev.D69:034004,2004 · 8 pages, 1 figure
arxiv created 2003/09/24 · openalex publication_date 2004/02/23 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
For the NN system, the one-pion-exchange (OPE) interaction gives the largest attractive force for NN with an isospin I=0 and spin S=0, while a near-threshold enhancement was observed for pp with I=0 and S=0 in J/\stackrel\ensuremath→\ensuremathψ\ensuremathγpp decays. With a K-matrix approach, we find that the OPE final-state interaction makes an important contribution to the near-threshold enhancement in the pp mass spectrum in J/\stackrel\ensuremath→\ensuremathψ\ensuremathγpp decays.