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Experimentelle Konsequenzen einer Minimalen Länge
(2007)
- Es wird ein effektives Modell zur Berücksichtigung einer Minimalen Länge in der Quantenfeldtheorie vorgestellt. Im Falle der Existenz Großer Extradimensionen kann dies zu überprüfbaren Modifikationen verschiedener Experimente führen. Es werden verschiedene Phänomene wie z.B. der Casimir-Effekt, Neutrino-Nukleon-Reaktionen oder Neutrinooszillationen diskutiert.
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Mini black holes at the LHC : discovery through di-jet suppression, mono-jet emission and a supersonic boom in the quark-gluon plasma in ALICE, ATLAS and CMS
(2006)
- We examine experimental signatures of TeV-mass black hole formation in heavy ion collisions at the LHC. We find that the black hole production results in a complete disappearance of all very high p_T (> 500 GeV) back-to-back correlated di-jets of total mass M > M_f ~ 1 TeV. We show that the subsequent Hawking-decay produces multiple hard mono-jets and discuss their detection. We study the possibility of cold black hole remnant (BHR) formation of mass ~ M_f and the experimental distinguishability of scenarios with BHRs and those with complete black hole decay. Finally we point out that a Heckler-Kapusta-Hawking plasma may form from the emitted mono-jets. In this context we present new simulation data of Mach shocks and of the evolution of initial conditions until the freeze-out.
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No black holes at IceCube
(2006)
- We discuss modifications of the neutrino-nucleon cross section due to a minimal length scale. It is shown that the enhancement of the nu-N cross section due to new physics is suppressed. Especially the potential observation rate of micro black holes at neutrino telescopes is strongly reduced.
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Probing the minimal length scale by precision tests of the muon g-2
(2003)
- Modifications of the gyromagnetic moment of electrons and muons due to a minimal length scale combined with a modified fundamental scale M_f are explored. Deviations from the theoretical Standard Model value for g-2 are derived. Constraints for the fundamental scale M_f are given.
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Signatures of a minimal length scale in high precision experiments
(2004)
- We discuss modifications of the gyromagnetic moment of electrons and muons due to a minimal length scale combined with a modified fundamental scaleMf . First-order deviations from the theoretical standard model value for g-2 due to these String Theory-motivated e ects are derived. Constraints for the new fundamental scale Mf are given.
