2000/02/14 by Cheuk-Yin Wong, Wong, Cheuk-Yin, E. S. Swanson +3
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #Nuclear Theory (nucl-th) #hep-ph #nucl-th
paper · pdf · doi:10.48550/arxiv.nucl-th/0002034
Invited Talk presented at Hirsch 2000 Workshop, Austria, Hadrons in Dense Matter, 16-22 January 2000, Hirschegg, Austria
arxiv created 2000/02/14 · arxiv updated 2009/11/30
Using the quark-interchange model of Barnes and Swanson, we evaluate the dissociation cross sections for J/ψ and ψ' by π and ρ at low collision energies. In collisions with π mesons near threshold the π+ J/ψ dissociation cross section is predicted to be small, but the π+ψ' cross section is found to be quite large, in qualitative agreement with experimental data on J/ψ and ψ' production in high-energy heavy-ion collisions. The ρ+ J/ψ and ρ+ ψ' dissociation cross sections are both predicted to be large numerically and are divergent near threshold. These ρ+ J/ψ and ρ+ ψ' cross sections show considerable sensitivity to the mass of the ρ meson if it is off energy shell.