TeV Strings and Collider Probes of Large Extra Dimensions

Abstract

Arkani-Hamed, Dimopoulos, and Dvali have proposed that the fundamental gravitational scale is close to 1 TeV, and that the observed weakness of gravity at long distances is explained by the presence of large extra compact dimensions. If this scenario is realized in a string theory of quantum gravity, the string excited states of Standard Model particles will also have TeV masses. These states will be visible to experiment and in fact provide the first signatures of the presence of a low quantum gravity scale. Their presence also affects the more familiar signatures due to real and virtual graviton emission. We study the effects of these states in a simple string model.

43 pages, 11 figures, final corrections before journal publication

References in corpus (10)

• Multi-Parton Amplitudes in Gauge Theories
• Standard-like Models with Broken Supersymmetry from Type I String Vacua
• Looking For TeV-Scale Strings and Extra-Dimensions
• String theory predictions for future accelerators
• Search for Low Scale Gravity Effects in e+e- Collisions at LEP
• Search for Extra Dimensions in Boson and Fermion Pair Production in e+e- Interactions at LEP
• Tests of the Standard Model and Constraints on New Physics from Measurements of Fermion-pair Production at 189 GeV at LEP
• Global Analysis of Bhabha Scattering at LEP2 and Limits on Low Scale Gravity Models
• Compton Scattering at the NLC and Large Extra Dimensions
• Multi-photon production in e+e- collisions at sqrt(s)= 189 geV

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