1996/11/30 by W. S. Chung, W.S. Chung, G. Q. Li +3
Physics and Astronomy · #High-Energy Particle Collisions Research #Pulsars and Gravitational Waves Research #Quantum Chromodynamics and Particle Interactions #nucl-th
paper · pdf · doi:10.1016/s0370-2693(97)00374-2
LaTeX, including 8 postscript figures, revised version to appear in Phys. Lett. B
arxiv created 1997/03/19 · openalex publication_date 1997/05/01 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
Phi meson production in pion-baryon and baryon-baryon interactions near the production threshold is studied in a boson-exchange model. Parameters in this model are either taken from the Bonn model for the nucleon-nucleon potential or determined from the measured phi meson decay width and the experimental data for the reactions π-p\arr ϕn and pp\arr ppϕ. The isospin-averaged cross sections for the reactions πN\arr ϕN, πΔ\arr ϕN, NN\arr NNϕ, which are needed in transport models to study phi meson production in heavy-ion collisions at subthreshold energies, have been evaluated. For the reactions NΔ\arr NNϕ and ΔΔ\arr NNϕ, which become singular when the exchanged pion is on-shell, the Peierls method is used to calculate their cross sections. We find that the cross section for the reaction πN\arrϕN is much larger than the other cross sections.