dorsal/arxiv
View SchemaCharm production in antiproton-nucleus collisions at the $J/\psi$ and the $\psi'$ thresholds
| Authors | L. Gerland, L. Frankfurt, M. Strikman |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/0501074 |
| URL | https://arxiv.org/abs/nucl-th/0501074 |
| DOI | 10.1016/j.physletb.2005.05.013 |
| Journal | Phys.Lett. B619 (2005) 95-104 |
Abstract
We discuss the production of charmonium states in antiproton-nucleus collisions at the $\psi'$ threshold. It is explained that measurements in $\bar p A$ collisions will allow to get new information about the strengths of the inelastic $J/\psi N, \psi'N$ interaction, on the production of $\Lambda_c$ and $\bar{D}$ in charmonium-nucleon interactions and for the first time about nondiagonal transitions $\psi' N\to J/\psi N$. The inelastic $J/\psi$-nucleon cross section is extracted from the comparison of hadron-nucleus collisions with hadron-nucleon collisions. We extract the total $J/\psi$ nucleon cross section from photon-nucleon collisions by accounting for the color transparency phenomenon within the frame of the GVDM (Generalized Vector meson Dominance Model). We evaluate also within the GVDM the inelastic $\psi'$-nucleon cross section as well as the cross section for the nondiagonal transitions. Predictions for the ratio of $J/\psi$ to $\psi'$ yields in antiproton-nucleus scatterings close to the threshold of $\psi'$ production for different nuclear targets are presented.
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"abstract": "We discuss the production of charmonium states in antiproton-nucleus\ncollisions at the $\\psi\u0027$ threshold. It is explained that measurements in $\\bar\np A$ collisions will allow to get new information about the strengths of the\ninelastic $J/\\psi N, \\psi\u0027N$ interaction, on the production of $\\Lambda_c$ and\n$\\bar{D}$ in charmonium-nucleon interactions and for the first time about\nnondiagonal transitions $\\psi\u0027 N\\to J/\\psi N$. The inelastic $J/\\psi$-nucleon\ncross section is extracted from the comparison of hadron-nucleus collisions\nwith hadron-nucleon collisions. We extract the total $J/\\psi$ nucleon cross\nsection from photon-nucleon collisions by accounting for the color transparency\nphenomenon within the frame of the GVDM (Generalized Vector meson Dominance\nModel). We evaluate also within the GVDM the inelastic $\\psi\u0027$-nucleon cross\nsection as well as the cross section for the nondiagonal transitions.\nPredictions for the ratio of $J/\\psi$ to $\\psi\u0027$ yields in antiproton-nucleus\nscatterings close to the threshold of $\\psi\u0027$ production for different nuclear\ntargets are presented.",
"arxiv_id": "nucl-th/0501074",
"authors": [
"L. Gerland",
"L. Frankfurt",
"M. Strikman"
],
"categories": [
"nucl-th",
"hep-ph"
],
"doi": "10.1016/j.physletb.2005.05.013",
"journal_ref": "Phys.Lett. B619 (2005) 95-104",
"title": "Charm production in antiproton-nucleus collisions at the $J/\\psi$ and the $\\psi\u0027$ thresholds",
"url": "https://arxiv.org/abs/nucl-th/0501074"
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