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Article overview
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Model for $J/psi$ absorption in hadronic matter | Ziwei Lin
; C. M. Ko
; | Date: |
20 Dec 1999 | Journal: | Phys.Rev. C62 (2000) 034903 | Subject: | nucl-th hep-ph | Abstract: | The cross sections for $J/psi$ absorption by $pi$ and $
ho$ 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 $sigma_{
ho psi}$ 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. | Source: | arXiv, nucl-th/9912046 | Services: | Forum | Review | PDF | Favorites |
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