At the HL-LHC, first-generation leptoquarks decaying to right-handed neutrinos are discovered most efficiently through indirect t-channel production, reaching leptoquark masses of roughly 3 to 10 TeV when the new coupling is large.
Constraining minimal anomaly free $\mathrm{U}(1)$ extensions of the Standard Model
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abstract
We consider a class of minimal anomaly free $\mathrm{U}(1)$ extensions of the Standard Model with three generations of right-handed neutrinos and a complex scalar. Using electroweak precision constraints, new 13 TeV LHC data, and considering theoretical limitations such as perturbativity, we show that it is possible to constrain a wide class of models. By classifying these models with a single parameter, $\kappa$, we can put a model independent upper bound on the new $\mathrm{U}(1)$ gauge coupling $g_z$. We find that the new dilepton data puts strong bounds on the parameters, especially in the mass region $M_{Z'}\lesssim 3~ \mathrm{TeV}$.
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Right-handed neutrino production through first-generation leptoquarks
At the HL-LHC, first-generation leptoquarks decaying to right-handed neutrinos are discovered most efficiently through indirect t-channel production, reaching leptoquark masses of roughly 3 to 10 TeV when the new coupling is large.