Signatures of gravitational fixed points at the LHC

Details Signatures of gravitational fixed points at the LHC Signatures of gravitational fixed points at the LHC

2007-07-26

arxiv.org/abs/0707.3983v3

Phys.Rev.Lett.100:131301,2008

Physics

High Energy Physics

High Energy Physics - Phenomenology

4 pages, 3 figures; v2: error in numerics corrected (Tab. 1), typos removed; v3: comment added, version to appear in Phys. Rev

Scientific paper

10.1103/PhysRevLett.100.131301

We study quantum-gravitational signatures at the Large Hadron Collider (LHC) in the context of theories with extra spatial dimensions and a low fundamental Planck scale in the TeV range. Implications of a gravitational fixed point at high energies are worked out using Wilson's renormalisation group. We find that relevant cross-sections involving virtual gravitons become finite. Based on gravitational lepton pair production we conclude that the LHC is sensitive to a fundamental Planck scale of up to 6 TeV.

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