Transverse Momentum Spectra of $J/ψ$ and $ψ^{\prime}$ Mesons from Quark Gluon Plasma Hadronization in Nuclear Collisions

Details Transverse Momentum Spectra of $J/ψ$ and $ψ^{\prime}$ Mesons from Quark Gluon Plasma Hadronization in Nuclear Collisions Transverse Momentum Spectra of $J/ψ$ and $ψ^{\prime}$ Mesons from Quark Gluon Plasma Hadronization in Nuclear Collisions

2001-06-28

arxiv.org/abs/hep-ph/0106342v2

Phys.Lett. B523 (2001) 255-259

Physics

High Energy Physics

High Energy Physics - Phenomenology

Four pages, one figure

Scientific paper

10.1016/S0370-2693(01)01341-7

Recent results on transverse mass spectra of $J/\psi$ and $\psi^{\prime}$ mesons in central Pb+Pb collisions at 158 A$\cdot$GeV are considered. It is shown that those results support a hypothesis of statistical production of charmonia at hadronization and suggest the early thermal freeze--out of $J/\psi$ and $\psi^{\prime}$ mesons. Based on this approach the collective transverse velocity of hadronizing quark gluon plasma is estimated to be $ \approx 0.2$. Predictions for transverse mass spectra of hidden and open charm mesons at SPS and RHIC are discussed.

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