$J/ψ$ suppression in Au+Au collisions at RHIC : colour screening scenario in the bag model at variable participant numbers

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dc.creatorMishra, M.
dc.creatorSingh, C. P.
dc.creatorMenon, V. J.
dc.creatorDubey, Ritesh Kumar
dc.date2007-07-18
dc.date2007-09-18
dc.date.accessioned2026-07-07T10:56:47Z
dc.date.available2026-07-07T10:56:47Z
dc.descriptionWe have modified the colour screening theory of Chu and Matsui by properly incorporating bag model equation of state for quark gluon plasma (QGP). We have also chosen the pressure parametrization rather than parametrizing energy density in the transverse plane. We assume that the QGP dense medium is expanding in the longitudinal direction obeying Bjorken boost invariant scaling law. Sequential melting of $χ_c$, $ψ^{'}$ and $J/ψ$ is also considered in this scenario. We have applied above formulation to the recent PHENIX experimental data of $J/ψ$ suppression in Au + Au collisions at RHIC. We find that the model gives a good description of data at mid-rapidity in terms of survival probability versus number of participants without any necessity of implementing (3+1)-dimensional expansion of the deconfined medium.
dc.description13 pages, 2 figures
dc.identifierhttps://arxiv.org/abs/0707.2641
dc.identifierhttp://arxiv.org/abs/0707.2641
dc.identifierPhys.Lett.B656:45-50,2007
dc.identifierdoi:10.1016/j.physletb.2007.09.043
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/186530
dc.subjectHigh Energy Physics - Phenomenology
dc.title$J/ψ$ suppression in Au+Au collisions at RHIC : colour screening scenario in the bag model at variable participant numbers
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