TY - INPR A1 - Scherer, Stefan A1 - Bass, Steffen A. A1 - Belkacem, Mohamed A1 - Bleicher, Marcus A1 - Brachmann, Jörg A1 - Dumitru, Adrian Bogdan A1 - Ernst, Christoph A1 - Gerland, Lars A1 - Hammon, Nils A1 - Hofmann, Markus A1 - Konopka, Jens A1 - Neise, Ludwig A1 - Reiter, Manuel A1 - Schramm, Stefan A1 - Soff, Sven A1 - Spieles, Christian A1 - Weber, Henning A1 - Zschiesche, Detlef A1 - Maruhn, Joachim A1 - Stöcker, Horst A1 - Greiner, Walter T1 - Physics opportunities at RHIC and LHC N2 - Nonequilibrium models (three-fluid hydrodynamics, UrQMD, and quark molecular dynamics) are used to discuss the uniqueness of often proposed experimental signatures for quark matter formation in relativistic heavy ion collisions from the SPS via RHIC to LHC. It is demonstrated that these models - although they do treat the most interesting early phase of the collisions quite differently (thermalizing QGP vs. coherent color fields with virtual particles) -- all yield a reasonable agreement with a large variety of the available heavy ion data. Hadron/hyperon yields, including J/Psi meson production/suppression, strange matter formation, dileptons, and directed flow (bounce-off and squeeze-out) are investigated. Observations of interesting phenomena in dense matter are reported. However, we emphasize the need for systematic future measurements to search for simultaneous irregularities in the excitation functions of several observables in order to come close to pinning the properties of hot, dense QCD matter from data. The role of future experiments with the STAR and ALICE detectors is pointed out. Y1 - 1999 UR - http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/3367 UR - https://nbn-resolving.org/urn:nbn:de:hebis:30-20319 ER -