Model for $J/ψ$ absorption in hadronic matter
| dc.creator | Lin, Ziwei | |
| dc.creator | Ko, C. M. | |
| dc.date | 1999-12-20 | |
| dc.date | 2000-08-21 | |
| dc.date.accessioned | 2026-07-07T10:34:39Z | |
| dc.date.available | 2026-07-07T10:34:39Z | |
| dc.description | The cross sections for $J/ψ$ absorption by $π$ and $ρ$ mesons are studied in a meson-exchange model that includes not only pseudoscalar-pseudoscalar-vector-meson couplings but also three-vector-meson and four-point couplings. We find that they are much larger than in a previous study where only pseudoscalar-pseudoscalar-vector-meson couplings were considered. Including form factors at interaction vertices, the $J/ψ$ absorption cross sections $σ_{πψ}$ and $σ_{ρψ}$ are found to have values on the order of 7 mb and 3 mb, respectively. Their thermal averages in hadronic matter at temperature T=150 MeV are, respectively, about 1 mb and 2 mb. | |
| dc.description | Appendix B added to show detailed comparisons, and meson matrices chosen to be traceless | |
| dc.identifier | https://arxiv.org/abs/nucl-th/9912046 | |
| dc.identifier | http://arxiv.org/abs/nucl-th/9912046 | |
| dc.identifier | Phys.Rev.C62:034903,2000 | |
| dc.identifier | doi:10.1103/PhysRevC.62.034903 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/179549 | |
| dc.subject | Nuclear Theory | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | Model for $J/ψ$ absorption in hadronic matter | |
| dc.type | text |