$J/ψ$ Gluonic Dissociation Revisited : II. Hydrodynamic Expansion Effects

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dc.creatorPatra, B. K.
dc.creatorMenon, V. J.
dc.date2005-03-11
dc.date.accessioned2026-07-07T12:25:35Z
dc.date.available2026-07-07T12:25:35Z
dc.descriptionWe explicitly take into account the effect of hydrodynamic expansion profile on the gluonic breakup of $J/ψ$'s produced in an equilibrating parton plasma. Attention is paid to the space-time inhomogeneities as well as Lorentz frames while deriving new expressions for the gluon number density $n_g$, average dissociation rate $<\tildeΓ>$, and $ψ$ survival probability $S$. A novel type of partial wave {\em interference} mechanism is found to operate in the formula of $<\tildeΓ>$. Nonrelativistic longitudinal expansion fro small length of the initial cylinder is found to push the $S(p_T)$ graph above the no flow case considered by us earlier \cite{rev1}. However, relativistic flow corresponding to large length of the initial cylinder pushes the curve of $S(p_T)$ downwards at LHC but upwards at RHIC. This mutually different effect on $S(p_T)$ may be attributed to the different initial temperatures generated at LHC and RHIC.
dc.description25 pages, 10 figures
dc.identifierhttps://arxiv.org/abs/nucl-th/0503034
dc.identifierhttp://arxiv.org/abs/nucl-th/0503034
dc.identifierEur.Phys.J.C44:567-576,2005
dc.identifierdoi:10.1140/epjc/s2005-02273-2
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/214653
dc.subjectNuclear Theory
dc.title$J/ψ$ Gluonic Dissociation Revisited : II. Hydrodynamic Expansion Effects
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