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arXiv · hep-ph/9905395

Probing Large Extra Dimensions Using Top Production in Photon-Photon Collisions

Prakash Mathews·P. Poulose·K. Sridhar
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Abstract

Theories with large extra dimensions predict an infinite tower of Kaluza-Klein states in the 1 TeV range, which can consequently have significant implications for experimental observables. One such observable, which gets affected by the exchange of spin-2 Kaluza-Klein particles, is the t t(bar) production cross-section in photon-photon collisions at NLC energies. We study this process and obtain bounds on the effective quantum gravity scale M_S between 700 and 2400 GeV (depending on the centre-of-mass energy). We show that the use of polarisation will further strengthen these bounds.

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Prakash Mathews, P. Poulose, K. Sridhar. 1999-07-12. Probing Large Extra Dimensions Using Top Production in Photon-Photon Collisions. https://doi.org/10.1016/s0370-2693(99)00847-3

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