Suppression of High-P_T Jets as a Signal for Large Extra Dimensions and New Estimates of Lifetimes for Meta stable Micro Black Holes -From the Early Universe to Future Colliders

Details Suppression of High-P_T Jets as a Signal for Large Extra Dimensions and New Estimates of Lifetimes for Meta stable Micro Black Holes -From the Early Universe to Future Colliders Suppression of High-P_T Jets as a Signal for Large Extra Dimensions and New Estimates of Lifetimes for Meta stable Micro Black Holes -From the Early Universe to Future Colliders

2001-11-06

arxiv.org/abs/hep-ph/0111052v2

Physics

High Energy Physics

High Energy Physics - Phenomenology

Typos corrected, omitted prefactors included, Proceedings of the Colloque International sur la Physique du Plasma de Quarks et

Scientific paper

We address the production of black holes at LHC in space times with compactified space-like large extra dimensions (LXD). Final state black hole production leads to suppression of high-P_T jets, i.e. a sharp cut-off in the cross section for pp->jet+X. This signal is compared to the jet plus missing energy signature due to graviton production in the final state as proposed by the ATLAS collaboration. Time evolution and lifetimes of the newly created black holes are calculated based on the microcanonical formalism. It is demonstrated that previous lifetime estimates of micro black holes have been dramatically underestimated. The creation of a large number of quasi-stable black holes is predicted with life times beyond hundred fm/c at LHC. Medium modifications of the black holes evaporation rate due to the quark gluon plasma in relativistic heavy ion collisions as well as provided by the cosmic fluid in the early universe are studied.

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