Sensitivity Study of Extra Dimensions at TeV $e^+ e^-$ colliders

Details Sensitivity Study of Extra Dimensions at TeV $e^+ e^-$ colliders Sensitivity Study of Extra Dimensions at TeV $e^+ e^-$ colliders

2001-04-24

arxiv.org/abs/hep-ph/0104250v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

6 pages. A contribution to the theory meeting on physics at linear colliders, 15--17 March 2001, KEK, Japan

Scientific paper

We study the sensitivity reach of $0.5-2$ TeV $e^+ e^-$ linear colliders in the context of the ADD model, in which gravity becomes strong at TeV scale. We include the real emission channel $e^+ e^- \to \gamma G$, as well as the virtual-graviton-exchange channels $e^+ e^- \to \gamma \gamma, q\bar q, \mu^+\mu^-, \tau^+ \tau^-, e^+ e^-$. Assuming no excess of events over the standard model predictions, we obtain the lower 95% C.L. limits on the effective Planck scale. These limits are better than those obtained in the Run II's of the Tevatron and comparable to those of the LHC.

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