Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
1998-11-28
Phys.Lett. B450 (1999) 343-347
Physics
High Energy Physics
High Energy Physics - Phenomenology
7 pages, latex, 1 ps figure, revised version to appear in Phys. Lett. B
Scientific paper
10.1016/S0370-2693(99)00160-4
The prospect of large extra dimensions and an effective theory of gravity at around a TeV has interesting experimental consequences. In these models, the Kaluza-Klein modes interact with Standard Model particles and these interactions lead to testable predictions at present and planned colliders. We investigate the effect of virtual exchanges of the spin-2 Kaluza-Klein modes in the production cross-section of $t \bar t$ pairs at the Tevatron and the LHC and find that the $t \bar t$ cross-section can be an effective probe of the large extra dimensions. This enables us to put bounds on the effective low-energy scale.
Mathews Prakash
Raychaudhuri Sreerup
Sridhar K.
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