Bhabha Scattering with Radiated Gravitons at Linear Colliders

Abstract

We study the process e+- e- -> e+- e- +- missing energy at a high-energy e+- e- collider, where the missing energy arises from the radiation of Kaluza-Klein gravitons in a model with large extra dimensions. It is shown that at a high-energy linear collider, this process can not only confirm the signature of such theories but can also sometimes be comparable in effectiveness to the commonly discussed channel e+- e- -> gamma +- missing energy, especially for a large number of extra dimensions and with polarized beams. We also suggest some ways of distinguishing the signals of a graviton tower from other types of new physics signals by combining data on our suggested channel with those on the photon-graviton channel.

16 pages, LaTex, 8 figures embedded, typos, report no and references corrected

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Cited by in corpus (9)

• Graviton production with 2 jets at the LHC in large extra dimensions
• Lorentz violation in simple QED processes
• Universal Extra Dimensions, Radiative Returns and the Inverse Problem at a Linear e+e- Collider
• Physics Opportunities with a TeV Linear Collider
• Associated production of graviton with $e^{+}{e}^{-}$ pair via photon-photon collisions at a linear collider
• Event shape discrimination of supersymmetry from large extra dimensions at a linear collider
• Experimental signatures of Kalb-Ramond-like particles
• Higgs production in association with top quark pair at e+e- colliders in theories of higher dimensional gravity
• Indian Contributions to LHC Theory