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HK: Fachverband Physik der Hadronen und Kerne

HK 6: Theorie

HK 6.4: Vortrag

Montag, 12. März 2007, 18:45–19:00, C

ZZ-production by graviton mediation within the ADD model — •Martin Kober and Marcus Bleicher — Institut für Theoretische Physik, J.W.G-Universität, Frankfurt am Main

This talk deals with the consideration of ZZ-production mediated by gravitons within the ADD-model. The ADD-model comprises the assumption that space-time consists of additional dimensions compactified with a certain radius. Only gravity can propagate in this new dimensions wheareas usual matter is constrained to live on the world volume of a 3+1-dimensional hypersurface. This model could give an explanation why gravity is so weak compared to the other fundamental forces. In case of a low number of additional dimensions and a quite large compactification radius there could arise a deviation from particle- production-rates predicted by merely incorporating the usual standard model contribution measurable at energies available at the LHC. This possibility is considered for the special case of ZZ-production.