Cross section for charmonium absorption by nucleons
| Autor: | Che Ming Ko, Zw. Lin, Wei Liu |
|---|---|
| Rok vydání: | 2001 |
| Předmět: |
Physics
Nuclear and High Energy Physics Particle physics Meson 010308 nuclear & particles physics Scattering Nuclear Theory Hadron Absorption cross section Feynman graph 01 natural sciences Nuclear physics symbols.namesake Pion 0103 physical sciences symbols High Energy Physics::Experiment Nuclear Experiment 010306 general physics Nucleon Lagrangian |
| Zdroj: | Physical Review C. 65 |
| ISSN: | 1089-490X 0556-2813 |
| DOI: | 10.1103/physrevc.65.015203 |
| Popis: | The cross section for $J/\ensuremath{\psi}$ absorption by nucleons is studied using a gauged SU(4) hadronic Lagrangian but with empirical particle masses, which has been used previously to study the cross sections for $J/\ensuremath{\psi}$ absorption by pion and $\ensuremath{\rho}$ meson. Including both two-body and three-body final states, we find that with a cutoff parameter of 1 GeV at interaction vertices involving charm hadrons, the $J/\ensuremath{\psi}\ensuremath{-}N$ absorption cross section is at most 5 mb and is consistent with that extracted from $J/\ensuremath{\psi}$ production from both photonuclear and proton-nucleus reactions. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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