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Recently, it was shown in arXiv:1512.06742 that a straightforwardimplementation of the type I seesaw mechanism in a warped extra dimensionalframework is in reality a {\em natural} realization of "inverse" seesaw, i.e.,the Standard Model (SM) neutrino mass is dominantly generated by exchange ofpseudo-Dirac {\em TeV}-mass SM singlet neutrinos. By the AdS/CFTcorrespondence, this scenario is {\em dual} to these singlet particles beingcomposites of some new strong dynamics, along with the SM Higgs boson, with therest of the SM particles being mostly elementary. We study signals fromproduction of these heavy neutrinos at the Large Hadron Collider (LHC). Wefocus on the scenario where the strong sector has a global $SU(2)_{\rm L}\times SU(2)_{\rm R} \times U(1)_{\rm X}$ symmetry; such a left-right (LR)structure being motivated by consistency with the electroweak (EW) precisiontests. The singlet neutrinos are charged under $SU(2)_{\rm R} \times U(1)_{\rmX}$ symmetry, thus can be produced from $W^{ \pm }_R$ exchange, as infour-dimensional (4D) LR symmetric models. However, the direct coupling oflight quarks to $W^{ \pm }_R$ is negligible, due to $W^{ \pm }_R$ also beingcomposite; nonetheless, a sizable coupling can be induced by mixings among thevarious types of $W^{ \pm }$ bosons. Furthermore, $W^{ \pm }_R$ decaysdominantly into the singlet and {\em composite} partner of charged lepton. Thisheavy charged lepton, in turn, decays into SM lepton, {\em plus} $Z$/Higgs,thus the latter can be used for extra identification of the signal. For abenchmark scenario with $W^{ \pm }_R$ of mass 2 TeV and singlet neutrino ofmass 750 GeV, we find that, in both the di-lepton + di-jet + Higgs andtri-lepton + Higgs channels, significant evidence can be seen at the LHC14 foran integrated luminosity of 300/fb and that even discovery is possible withslightly more luminosity.

LHC signals for Singlet Neutrinos from a Natural Warped Seesaw (I)