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arXiv 0707.3983hep-phgr-qchep-th
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LHC上引力不动点的特征

Signatures of gravitational fixed points at the LHC

Daniel F. Litim, Tilman Plehn

摘要:

我们研究量子引力签名在大型强子对撞机(LHC)的背景下,额外的空间维度和低基本普朗克尺度的TeV范围内的理论。利用Wilson重整化群计算了高能时引力不动点的影响。我们发现,涉及虚引力子的相关截面变得有限。基于引力轻子对的产生,我们得出结论,大型强子对撞机是敏感的基本普朗克尺度高达6 TeV。

英文摘要:

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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