Possible effects of the large extra dimensions on $ZZW$ production at the LHC

Abstract

We investigate the possible large extra dimensions (LED) effects induced by the Kaluza-Klein gravitons up to the QCD next-to-leading order (NLO) on $ZZW$ production at the large hadron collider (LHC). The integrated cross sections and some kinematic distributions are presented in both the standard model (SM) and the LED model. The numerical results demonstrate that the NLO QCD corrections are sizeable and remarkably reduce the leading order (LO) LED effect depending strongly on the phase space. The NLO LED relative discrepancies of the total cross section could become sizable for the $ZZW$ production, if we apply proper event selection criteria. We find that the LO result overestimates the LED effect and is insufficient to provide a believable theoretical prediction.

17 pages, 6 figures

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• Electroweak radiative corrections to $W^{+}{W}^{-}\gamma$ production at the ILC