Neutral $Z$ boson pair production due to radion resonance in the Randall-Sundrum model: prospects at the CERN LHC

Abstract

The Neutral $Z$ boson pair production due to radion resonance at the Large Hadron Collider (LHC) is an interesting process to explore the notion of warped geometry (Randall-Sundrum model). Because of the enhanced coupling of radion with a pair of gluons due to trace enomaly and top(quark) loop, the radion can provide larger event rate possibility as compared to any New Physics effect. Using the proper radion-top-antitop (with the quarks being off-shell) coupling, we obtain the correct radion production rate at LHC and explore several features of a heavier radion decaying into a pair of real $Z$ bosons which subsequently decays into charged $4l(l=e,\mu )$ leptons (the gold-plated mode). Using the signal and background event rate, we obtain bounds on radion mass $m_{\varphi }$ and radion vev $\vphi$ at the $5\sigma$, $10\sigma$ discovery level.

17 pages, 4 figures, minor changes in the text, result unchanged. Version to appear in Phys. Rev. D

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Cited by in corpus (8)

• 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
• Signature of Large Extra Dimensions from Z boson pair production at the CERN Large Hadron Collider
• Unparticle physics and lepton flavor violating radion decays in the Randall-Sundrum scenario
• Radion Flavor Violation in Warped Extra Dimension
• ${\bar{B}}_s\to {\mu }^{+}{\mu }^{-}$ decay in the Randall-Sundrum model
• SN1987A cooling due to Plasmon-Plasmon scattering in the Randall-Sundrum Model
• Lepton flavor violating radion decays in the Randall-Sundrum scenario