Z boson pair production at LHC in a stabilized Randall-Sundrum scenario

Abstract

We study the Z boson pair production at LHC in the Randall-Sundrum scenario with the Goldberger-Wise stabilization mechanism. It is shown that comprehensive account of the Kaluza-Klein graviton and radion effects is crucial to probe the model: The KK graviton effects enhance the cross section of $gg\to ZZ$ on the whole so that the resonance peak of the radion becomes easy to detect, whereas the RS effects on the $q\bar{q}\to ZZ$ process are rather insignificant. The $p_T$ and invariant-mass distributions are presented to study the dependence of the RS model parameters. The production of longitudinally polarized Z bosons, to which the SM contributions are suppressed, is mainly due to KK gravitons and the radion, providing one of the most robust methods to signal the RS effects. The $1\sigma$ sensitivity bounds on $({\Lambda }_{\pi },m_{\varphi })$ with $k/M_{\mathrm{Pl}}=0.1$ are also obtained such that the effective weak scale ${\Lambda }_{\pi }$ of order 5 TeV can be experimentally probed.

28 pages, LaTex file, 18 eps figures

References in corpus (2)

• Muon anomalous magnetic moment and the stabilized Randall-Sundrum scenario
• Muon Anomalous Magnetic Moment (g-2)_mu and the Randall-Sundrum Model

Cited by in corpus (19)

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• Shifts in the Properties of the Higgs Boson from Radion Mixing
• Radion Couplings to Bulk Fields in the Randall-Sundrum Model
• Towards establishing the spin of warped gravitons
• First Order Calculation of the Inclusive Cross Section pp to ZZ by Graviton Exchange in Large Extra Dimensions
• Next-to-leading order QCD corrections to the $Z$ boson pair production at the LHC in Randall Sundrum model
• Constraints on radion in a warped extra dimension model from Higgs boson searches at the LHC
• A probe of the Radion-Higgs mixing in the Randall-Sundrum model at e^+ e^- colliders
• Neutral $Z$ boson pair production due to radion resonance in the Randall-Sundrum model: prospects at the CERN LHC
• Signature of Large Extra Dimensions from Z boson pair production at the CERN Large Hadron Collider
• LHC Signals for KK Graviton from an Extended Warped Extra Dimension
• Discriminating between technicolor and warped extra dimensional model via pp $\to$ ZZ channel
• Probing the Radion-Higgs mixing at hadronic colliders
• Localization of Gravitino Field on Thin Branes
• Radion Flavor Violation in Warped Extra Dimension
• Probing the radion-Higgs mixing at photon colliders