High- $$p_T$$ p T signatures in vector–leptoquark models

We present a detailed analysis of the collider signatures of TeV-scale massive vector bosons motivated by the hints of lepton flavour non-universality observed in B-meson decays. We analyse three representations that necessarily appear together in a large class of ultraviolet-complete models: a colour-singlet ( $$Z'$$ ), a colour-triplet (the $$U_1$$ leptoquark), and a colour octet ( $$G'$$ ). Under general assumptions for the interactions of these exotic states with Standard Model fields, including in particular possible right-handed and flavour off-diagonal couplings for the $$U_1$$ , we derive a series of stringent bounds on masses and couplings that constrain a wide range of explicit new-physics models.

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