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arXiv · 1310.2021

LHC limits on KK-parity non-conservation in the strong sector of universal extra-dimension models

Anindya Datta·Amitava Raychaudhuri·Avirup Shaw
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Abstract

In five-dimensional universal extra-dimensional models compactified on an $S^1/Z_2$ orbifold four-dimensional kinetic terms are allowed at the two fixed points. If these terms are unequal then Kaluza-Klein (KK) parity is broken. Within such a framework we consider resonant production of the n = 1 KK-gluon at the Large Hadron Collider and its subsequent decay to $t\bar{t}$, where both production and decay are KK-parity non-conserving. We use, for the first time, the exclusion data for a $t\bar{t}$ resonance obtained by the ATLAS collaboration to limit the mass ranges of quark and gluon excitations of the KK-parity-violating model which are found to be in the ballpark of 900 GeV.

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Anindya Datta, Amitava Raychaudhuri, Avirup Shaw. 2014-01-24. LHC limits on KK-parity non-conservation in the strong sector of universal extra-dimension models. https://doi.org/10.1016/j.physletb.2014.01.027

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