dorsal/arxiv
View SchemaModel for $J/\psi$ absorption in hadronic matter
| Authors | Ziwei Lin, C. M. Ko |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/9912046 |
| URL | https://arxiv.org/abs/nucl-th/9912046 |
| DOI | 10.1103/PhysRevC.62.034903 |
| Journal | Phys.Rev.C62:034903,2000 |
Abstract
The cross sections for $J/\psi$ absorption by $\pi$ and $\rho$ 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 $J/\psi$ absorption cross sections $\sigma_{\pi \psi}$ and $\sigma_{\rho \psi}$ 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.
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"abstract": "The cross sections for $J/\\psi$ absorption by $\\pi$ and $\\rho$ mesons are\nstudied in a meson-exchange model that includes not only\npseudoscalar-pseudoscalar-vector-meson couplings but also three-vector-meson\nand four-point couplings. We find that they are much larger than in a previous\nstudy where only pseudoscalar-pseudoscalar-vector-meson couplings were\nconsidered. Including form factors at interaction vertices, the $J/\\psi$\nabsorption cross sections $\\sigma_{\\pi \\psi}$ and $\\sigma_{\\rho \\psi}$ are\nfound to have values on the order of 7 mb and 3 mb, respectively. Their thermal\naverages in hadronic matter at temperature T=150 MeV are, respectively, about 1\nmb and 2 mb.",
"arxiv_id": "nucl-th/9912046",
"authors": [
"Ziwei Lin",
"C. M. Ko"
],
"categories": [
"nucl-th",
"hep-ph"
],
"doi": "10.1103/PhysRevC.62.034903",
"journal_ref": "Phys.Rev.C62:034903,2000",
"title": "Model for $J/\\psi$ absorption in hadronic matter",
"url": "https://arxiv.org/abs/nucl-th/9912046"
},
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"type": "Model",
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