Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2011-04-13
Physics
High Energy Physics
High Energy Physics - Phenomenology
one small typo corrected
Scientific paper
The rate at which cross sections grow with energy is sensitive to the presence of extra dimensions in a rather model-independent fashion. We examine how rates would be expected to grow if there are more spatial dimensions than 3 which appear at some energy scale, making connections with black hole physics and string theory. We also review what is known about the corresponding generalization of the Froissart-Martin bound and the experimental status of high energy hadronic cross sections which appear to saturate it up to the experimentally accessible limit of 100 TeV. We discuss how extra dimensions can be searched for in high energy cross section data and find no room for large extra dimensions in present data. Any apparent signatures of extra dimensions at the LHC may have to be interpreted as due to some other form of new physics.
Srivastava Yogendra
Swain Jitendriya
Widom Allan
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