Tensor Reggeons from Warped Space at the LHC

Abstract

The hierarchy problem can be addressed by extending the four-dimensional space-time to include an extra compact spatial dimension with non-trivial "warped" metric, as first suggested by Randall and Sundrum. If the Randall-Sundrum framework is realized in string theory, the effective value of the string scale in the vicinity of the infrared boundary should be in the TeV domain. The most attractive models of this type embed the Standard Model particles as zero-modes of five-dimensional fields. In such models, Regge excitations of the Standard Model states should appear around the TeV scale. We construct a toy model that describes tensor (spin-2) excitations of the Standard Model gauge bosons, and their on-shell couplings with light matter and gauge fields, within this framework. We use this toy model to predict the phenomenologically important features of the tensor Regge gluon, such as its mass, production cross section at the LHC, and decay patterns.

28 pages, 4 figures; Added References, expanded section 2.2, corrected typos, replaced figures

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• Top Quarks as a Window to String Resonances
• String Resonances at Hadron Colliders
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• Randall-Sundrum and Strings
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• Anomaly Puzzle, Curved-Spacetime Spinor Hamiltonian, and String Phenomenology