Transverse Momentum Spectra of $J/ψ$ and $ψ^{\prime}$ Mesons from Quark Gluon Plasma Hadronization at CERN SPS

Details Transverse Momentum Spectra of $J/ψ$ and $ψ^{\prime}$ Mesons from Quark Gluon Plasma Hadronization at CERN SPS Transverse Momentum Spectra of $J/ψ$ and $ψ^{\prime}$ Mesons from Quark Gluon Plasma Hadronization at CERN SPS

2001-12-05

arxiv.org/abs/nucl-th/0112016v2

J.Phys.G28:1981-1986,2002

Physics

Nuclear Physics

Nuclear Theory

Talk given at the Conference ``Strange Quarks in Matter 2001'', Frankfurt, September 24-29, 2001

Scientific paper

10.1088/0954-3899/28/7/357

A popular derivation of the apparent temperature of the particle transverse momentum spectra and its inconsistency are considered. An improved formula for the apparent temperature is discussed. It is shown that recent results on transverse mass spectra of $J/\psi$ and $\psi^{\prime}$ mesons support a hypothesis of statistical production of charmonia at hadronization and suggest the early thermal freeze-out of these mesons. Using the apparent temperature formula the collective transverse velocity of the hadronizing quark gluon plasma is extracted to be $ \approx 0.2$. Predictions for transverse mass spectra of hidden and open charm mesons along with bottomonium at SPS and RHIC energies are discussed.

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