Particle production in high energy heavy-ion collisions

The formation of top quarks and Z"0 bosons in ultrarelativistic heavy-ion collisions is investigated. We considered U-U and Pb-Pb collisions at energies of 3.5 TeV/u and 8 TeV/u. Several different elementary production mechanisms incorporating quarks, gluons, and photons are considered and implemented into the employed parton model. Relevant quantities of toponium are calculated within a nonrelativistic potential model. We also evaluated the formation cross section for free t anti t pairs. The nuclei are treated as clusters of noninteracting nucleons. (orig.)Available from TIB Hannover: RO 801(93-22) / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekSIGLEDEGerman