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

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arxiv 1310.2021 v2 pith:TPQIGFBF submitted 2013-10-08 hep-ph hep-ex

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

Anindya Datta , Amitava Raychaudhuri , Avirup Shaw (University of Calcutta) This is my paper
classification hep-ph hep-ex
keywords decaykk-paritymodelsproductiontermsuniversalallowedatlas
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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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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  1. Belle II Constraints on the Non-Minimal Universal Extra Dimensional Model

    hep-ph 2025-09 unverdicted novelty 5.0

    Belle II data on the rare B decay constrains the non-minimal UED model to require the inverse compactification radius to be at least ~900 GeV, while the minimal version yields no bound.