{ "id": "nucl-th/0209012", "version": "v5", "published": "2002-09-04T08:55:33.000Z", "updated": "2003-04-10T06:36:56.000Z", "title": "$J/ψ$ suppression in Pb+Pb collisions and $p_T$ broadening", "authors": [ "A. K. Chaudhuri" ], "comment": "The paper was completely revised. The conclusion is also changed. 5 pages, 4 figures", "journal": "Phys.Rev. C68 (2003) 024906", "doi": "10.1103/PhysRevC.68.024906", "categories": [ "nucl-th", "hep-ph" ], "abstract": "We have analysed the NA50 data, on the centrality dependence of $p_T$ broadening of $J/\\psi$'s, in Pb+Pb collisions, at the CERN-SPS. The data were analysed in a QCD based model, where $J/\\psi$'s are suppressed in 'nuclear' medium. Without any free parameter, the model could explain the NA50 $p_T$ broadening data. The data were also analysed in a QGP based threshold model, where $J/\\psi$ suppression is 100% above a critical density. The QGP based model could not explain the NA50 $p_T$ broadening data. We have also predicted the centrality dependence of $J/\\psi$ suppression and $p_T$ broadening at RHIC energy. Both the models, the QGP based threshold model and the QCD based nuclear absorption model, predict $p_T$ broadening very close to each other.", "revisions": [ { "version": "v5", "updated": "2003-04-10T06:36:56.000Z" } ], "analyses": { "subjects": [ "25.75.Dw" ], "keywords": [ "suppression", "collisions", "centrality dependence", "threshold model", "broadening data" ], "tags": [ "journal article" ], "publication": { "publisher": "APS", "journal": "Phys. Rev. C" }, "note": { "typesetting": "TeX", "pages": 5, "language": "en", "license": "arXiv", "status": "editable", "inspire": 594344 } } }