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arXiv · 1101.5548

Asymptotic safety and Kaluza-Klein gravitons at the LHC

Erik Gerwick·Daniel Litim·Tilman Plehn
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Abstract

We study Drell-Yan production at the LHC in low-scale quantum gravity models with extra dimensions. Asymptotic safety implies that the ultra-violet behavior of gravity is dictated by a fixed point. We show how the energy dependence of Newton's coupling regularizes the gravitational amplitude using a renormalization group improvement. We study LHC predictions and find that Kaluza-Klein graviton signals are well above Standard Model backgrounds. This leaves a significant sensitivity to the energy scale Lambda_T where the gravitational couplings cross over from classical to fixed point scaling.

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Erik Gerwick, Daniel Litim, Tilman Plehn. 2011-01-28. Asymptotic safety and Kaluza-Klein gravitons at the LHC. https://doi.org/10.1103/physrevd.83.084048

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