Effects of TeV Scale Gravity on e^+e^- --> W^+ W^-

Abstract

We study the process e^+e^- --> W^+W^- to probe low-scale gravity at high energy linear colliders. A characteristic signature of extra-dimensions models is the forward-backward asymmetry due to the interference of spin-2 graviton and spin-1 SM gauge boson exchange terms, even when right-polarised electron beam is used. Our analysis shows that larger than 5% asymmetry is possible at a linear collider with \sqrt{s}=500 (800) GeV if the mass scale, M_S is smaller than 2.7 (4.5) TeV. W^- polarisation factors measured with a few percent accuracy will also be able to put similar limits on M_S.

8 pages including figures

References in corpus (7)

• A Large Mass Hierarchy from a Small Extra Dimension
• An Alternative to Compactification
• Quantum Gravity and Extra Dimensions at High-Energy Colliders
• On Kaluza-Klein States from Large Extra Dimensions
• Limits on Low Scale Gravity from $e^{+}{e}^{-}\to W^{+}{W}^{-},ZZ$ and $\gamma \gamma$
• Collider Tests of Compact Space Dimensions Using Weak Gauge Bosons
• Lepton Spectra from e^+ e^- \to W^+ W^- in the BESS model

Cited by in corpus (1)

• Higgs production in association with top quark pair at e+e- colliders in theories of higher dimensional gravity