Signatures in the Planck regime

String theory suggests the existence of a minimum length scale. An exciting quantum mechanical implication of this feature is a modification of the uncertainty principle. In contrast to the conventional approach, this ge
String theory suggests the existence of a minimum length scale. An exciting quantum mechanical implication of this feature is a modification of the uncertainty principle. In contrast to the conventional approach, this generalised uncertainty principle does not allow to resolve space time distances below the Planck length. In models with extra dimensions, which are also motivated by string theory, the Planck scale can be lowered to values accessible by ultra high energetic cosmic rays (UHECRs) and by future colliders, i.e. M f approximately equal to 1 TeV. It is demonstrated that in this novel scenario, short distance physics below 1/M f is completely cloaked by the uncertainty principle. Therefore, Planckian effects could be the final physics discovery at future colliders and in UHECRs. As an application, we predict the modifications to the e+ e- to f+ f- cross-sections.
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Metadaten
Author:Sabine Hossenfelder, Marcus Bleicher, Stefan Hofmann, Jörg Ruppert, Stefan Scherer, Horst Stöcker
URN:urn:nbn:de:hebis:30-19983
ArXiv Id:http://arxiv.org/abs/hep-th/0305262
Document Type:Preprint
Language:English
Date of Publication (online):2005/10/27
Year of first Publication:2003
Publishing Institution:Univ.-Bibliothek Frankfurt am Main
Release Date:2005/10/27
Note:
Version 1 ersch. u.d.T.: Collider signatures in the Planck regime
Source:hep-th/0305262, Phys.Lett. B575 (2003)
HeBIS PPN:188844473
Institutes:Physik
Dewey Decimal Classification:530 Physik
Sammlungen:Universitätspublikationen
Licence (German):License Logo Veröffentlichungsvertrag für Publikationen

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