In the context of Left-Right symmetry, we revisit the Keung-Senjanovi\'cproduction of right-handed $W_R$ bosons and heavy neutrinos $N$ at high energycolliders. We develop a multi-binned sensitivity measure and use it to estimatethe sensitivity for the entire range of $N$ masses, spanning the standard andmerged prompt signals, displaced vertices and the invisible $N$ region. Theestimated sensitivity of the LHC with 300/fb integrated luminosity ranges from5 to beyond 7 TeV, while the future 33(100) TeV collider's reach with 3/abextends to 12(26) TeV.
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