Tevatron constraint on the Kaluza-Klein gluon of the Bulk Randall-Sundrum model

Details Tevatron constraint on the Kaluza-Klein gluon of the Bulk Randall-Sundrum model Tevatron constraint on the Kaluza-Klein gluon of the Bulk Randall-Sundrum model

2007-03-06

arxiv.org/abs/hep-ph/0703060v1

JHEP 0705:103,2007

Physics

High Energy Physics

High Energy Physics - Phenomenology

8 pages LaTeX, including 1 figure as a ps file

Scientific paper

10.1088/1126-6708/2007/05/103

The Bulk Randall-Sundrum model, where all Standard Model particles except the Higgs are free to propagate in the bulk, predicts the existence of Kaluza-Klein (KK) modes of the gluon with a large branching into top-antitop pairs. We study the production of the lowest KK gluon mode at the Tevatron energy and use the data on the top cross-section from the Run II of Tevatron to put a bound on the mass of the KK gluon. The resulting bound of 800 GeV, while being much smaller than the constraints obtained on the KK gluon mass from flavour-changing neutral currents, is the first, direct collider bound which is independent of the specificities of the model.

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