<math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mi>Ω</mi></math>, <math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mi mathvariant="italic">J</mi><mi>/</mi><mi>ψ</mi></math>, and <math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><msup><mrow><mi>ψ</mi></mrow><mrow><mo>′</mo></mrow></msup></mrow></math> Production in Nuclear Collisions and Quark-Gluon-Plasma Hadronization

M. I. Gorenstein; K. A. Bugaev; M. Gaździcki

doi:10.1103/PhysRevLett.88.132301

$Ω$ , $J / ψ$ , and $ψ^{'}$ Production in Nuclear Collisions and Quark-Gluon-Plasma Hadronization

M. I. Gorenstein, K. A. Bugaev, and M. Gaździcki

Phys. Rev. Lett. 88, 132301 – Published 14 March 2002

Abstract

The transverse mass spectra of $Ω$ , $J / ψ$ , and $ψ^{'}$ in $Pb + Pb$ collisions at $158 A GeV$ are studied within a hydrodynamical model of the quark-gluon-plasma expansion and hadronization. The model reproduces the existing data with the common hadronization parameters: temperature ${T = T}_{H} ≅ 170 MeV$ and average collective transverse velocity ${\bar{v}}_{T} ≅ 0.2$ .