Search for VBF Bulk Graviton decaying to Z(nunu)Z(qqbar) final state

Beyond the standard model theories like Extra-Dimensions predict heavy resonances corresponding to a graviton (a spin 2 particle) and can explain the gauge hierarchy problem. At LHC these gravitons can be produced through quark/anti-quark annihilation, gluon fusion, or vector boson fusion (VBF) processes. In scenarios where the coupling between the graviton and both light quarks and massless vector bosons are suppressed, production and decay via weak vector bosons are a critical probe of the existence of extra dimensions. We present the search for Bulk Graviton in VBF production mode, decaying to a pair of Z bosons where one Z decays to a pair of neutrinos, and the other decays to a merged jet due to the large momentum imparted to the Z bosons through the decay process of high mass gravitons. Tagging techniques for both forward jets produced in the VBF process and for identifying quarks from Z decays which fragment into a merged jet will be discussed. Challenges to traditional semi-visible resonance search techniques, which arise from a confluence of polarization effects and a partially reconstructed final state, will be presented. Finally, expected results of interpretations in the context of a Randall-Sundrum Warped Extra Dimensions model using LHC Run-2 datasets will be given.