We have measured deconfined hadronic volumes, $4.4 < V < 13.0$ fm$^{ 3}$, produced by a one dimensional (1D) expansion. These volumes are directly proportional to the charged particle pseudorapidity densities $6.75 < dN_{ c}/d\eta < 20.2$. The hadronization temperature is $T = 179.5 \pm 5$ (syst) MeV. Using Bjorken's 1D model,the hadronization energy density is $\epsilon_{ F} = 1.10 \pm 0.26$ (stat) GeV/fm$^{ 3}$ corresponding to an excitation of $24.8 \pm 6.2$ (stat) quark-gluon degrees of freedom.
Categories: hep-ex