Cross section for charmonium absorption by nucleons
Abstract
The cross section for J/ψ 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/ψ absorption by pion and ρ 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/ψ-N absorption cross section is at most 5 mb and is consistent with that extracted from J/ψ production from both photonuclear and proton-nucleus reactions.
- Publication:
-
Physical Review C
- Pub Date:
- December 2001
- DOI:
- 10.1103/PhysRevC.65.015203
- arXiv:
- arXiv:nucl-th/0107058
- Bibcode:
- 2001PhRvC..65a5203L
- Keywords:
-
- 14.20.Dh;
- 13.75.Lb;
- 14.40.Lb;
- 25.75.-q;
- Protons and neutrons;
- Meson-meson interactions;
- Charmed mesons;
- Relativistic heavy-ion collisions;
- Nuclear Theory
- E-Print:
- 7 pages, revtex, 7 figures