Relativistic heavy-ion collisions will soon allow the experimental study of hadronic matter at energy densities that will probably exceed that required to create a quark-gluon plasma. A quantitative understanding of the properties of a quark-gluon plasma is essential in order to determine whether it has been created. Because QCD is asymptotically free, the running coupling constant αs becomes s...

Initial conditions for quark-gluon plasma formation at τ = 0.1 fm are considered in lowest order perturbative QCD. Chemical composition, thermalization of the formed semihard quark-gluon system and especially implications of the new HERA parton distributions with the enhancement at small x are studied. The plasma at τ = 0.1 fm is shown to be strongly gluon dominated both at RHIC and LHC, and a ...

Aspects of quark-gluon plasma signatures that can be measured by CMS are discussed. First the initial conditions of the system from minijet production are introduced, including shadowing effects. Color screening of the Upsilon family is then presented, followed by energy loss effects on charm and bottom hadrons, high pT jets and global observables. ∗) This work was supported in part by the Dire...

We calculate photon production from a quark-gluon plasma which is anisotropic in momentum space including the Compton scattering, q(q̄) g → q(q̄) γ, and annihilation, q q̄ → g γ, processes. We show that for a quark-gluon plasma which has an oblate momentum-space anisotropy, 〈p2L〉 < 〈p 2 T 〉, the photon production rate has an angular dependence which is peaked transverse to the beam line. We propos...