Asymptotic safety and Kaluza-Klein gravitons at the LHC
arXiv:1101.5548 · doi:10.1103/PhysRevD.83.084048
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.
25 pages, 14 figures
References in corpus (18)
- Exact evolution equation for the effective potential
- Taming perturbative divergences in asymptotically safe gravity
- Fixed points of quantum gravity in extra dimensions
- TASI Lectures on Extra Dimensions and Branes
- Towards an S-matrix Description of Gravitational Collapse
- On fixed points of quantum gravity
- Signatures of gravitational fixed points at the LHC
- A model independent spin analysis of fundamental particles using azimuthal asymmetries
- Search for Large Extra Dimensions via Single Photon plus Missing Energy Final States at sqrt(s) = 1.96 TeV
- Collider Signals of Gravitational Fixed Points
- Fixed points of quantum gravity in higher dimensions
- Search for Large extra spatial dimensions in the dielectron and diphoton channels in collisions at 1.96 TeV
- Spin identification of the Randall-Sundrum resonance in lepton-pair production at the LHC
- Gravitational Scattering in the ADD-model at High and Low Energies
- Gravitational Scattering in the ADD-model Revisited
- Search for Large Extra Dimensions Using Dielectron and Diphoton Events in Collisions at TeV
- Studies of Drell-Yan dimuon events in the CMS experiment
- Probing Extra Dimensions with ATLAS