2003/09/30 by Sandip Pakvasa, Mahiko Suzuki · 7 citations
Physics and Astronomy · #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ex #hep-ph
paper · pdf · doi:10.1016/j.physletb.2003.11.005
published as Phys.Lett.B579:67-73,2004 · 10 pages, 1 eps figure, and 1 Table in Revtex. A comment with two references is added on mixing between a charmonium and a molecule
arxiv created 2003/09/30 · openalex publication_date 2003/12/02 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/02
We discuss some puzzling aspects of the narrow hidden charm resonance that was recently discovered by the Belle Collaboration at mass 3872 MeV. In order to determine its quantum numbers, a crucial piece of information is the spin of the dipion in the decay final state π+π−J/ψ. We give the angular distributions and correlations of the final particles in the decay which will provide this information about the nature of this resonance.