Can $J/ψ$ suppression and $p_T$ broadening signal the deconfinement transition at RHIC?

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dc.creatorChaudhuri, A. K.
dc.date2002-12-11
dc.date2005-06-24
dc.date.accessioned2026-07-07T05:39:23Z
dc.date.available2026-07-07T05:39:23Z
dc.descriptionWe have analyzed the latest NA50 data on $J/ψ$ suppression in Pb+Pb collisions at CERN SPS. It is shown that a QCD based nuclear absorption model, where $J/ψ$'s are absorbed in nuclear medium could explain the latest NA50 data on the centrality dependence of the $J/ψ$ over Drell-Yan ratio. The model also explains the NA50 data on $J/ψ$ over minimum bias ratio and the $p_T$ broadening of $J/ψ$'s. A QGP based threshold model where all the $J/ψ$'s are suppressed above a threshold density, also explains the data sets with smeared threshold density. Even at RHIC energy, centrality dependence of $J/ψ$ suppression or $p_T$ broadening could not distinguish between the two models.
dc.description8 pages, 8 figures. In the revised version, latest NA50 data (2000 run) on the centrality dependence of $J/ψ$ over Drell-Yan ratio are analysed in the QCD based nuclear absorption model and in the QGP based threshold model. In addition NA50 data on the centrality dependence of $J/ψ$ over minimum bias ratio and $p_T$ broadening of $J/ψ$'s are analysed. Prediction for RHIC Au+Au collisions are given
dc.identifierhttps://arxiv.org/abs/nucl-th/0212046
dc.identifierhttp://arxiv.org/abs/nucl-th/0212046
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/81947
dc.subjectNuclear Theory
dc.titleCan $J/ψ$ suppression and $p_T$ broadening signal the deconfinement transition at RHIC?
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