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J/Ψ Transport in QGP & Pt Distribution at RHIC

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Presentation on theme: "J/Ψ Transport in QGP & Pt Distribution at RHIC"— Presentation transcript:

1 J/Ψ Transport in QGP & Pt Distribution at RHIC
X. Zhu, P. Zhuang & N. Xu Motivation J/Ψ transport equation Gluonic dissociation process in QGP Medium evolution Pt distribution Elliptic flow Conclusions Weihai Workshop

2 Motivation J/Ψ suppression: an important signature of QGP Normal suppression: nuclear absorption Anomalous suppression: due to QGP or comovers Possible new mechanism at RHIC: coalescence V2 of J/Ψ: sensitive to initial stage Data of J/Ψsuppression: in the near future Almost all models can describe the suppression! Can Pt distribution help us to understand the production mechanism ? Weihai Workshop

3 ●J/Ψ is produced through initial NN collisions, no recombination
Idea of this work ●J/Ψ is produced through initial NN collisions, no recombination ● J/Ψ transport in QGP and is anomalously suppressed by QGP ● QGP evolution is controlled by ideal hydrodynamics ● focus on Pt distribution Weihai Workshop

4 J/Ψ transport equation
loss term: anomalous suppression gluon distribution flux factor gluonic dissociation process Initial condition: normal suppression Normal Pt broadening due to Cronin effect Weihai Workshop

5 Gluonic dissociation process in QGP
: gluon energy : binding energy of J/Ψ Weihai Workshop

6 Medium evolution Hydrodynamics: EoS: Lattice result Initial condition:
determined by Freeze-out: Weihai Workshop

7 Bjorken space-time evolution
for medium hydrodynamics and J/Ψ transport analytic solution Weihai Workshop

8 Suppression and Pt distribution at SPS
Weihai Workshop

9 Suppression and Pt distribution at RHIC
without considering normal suppression Weihai Workshop

10 Elliptic flow at SPS Weihai Workshop

11 Elliptic flow at RHIC Weihai Workshop

12 ● V2 can differentiate initial production from coalescence
Conclusions ● J/Ψ transport + medium hydrodynamics can explain both the suppression and Pt distribution ● V2 can differentiate initial production from coalescence Weihai Workshop

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