Dijet and electroweak limits on a Z' boson coupled to quarks
Abstract
An insightful way of presenting the LHC limits on dijet resonances is the coupling-mass plot for a Z' boson that has flavor-independent quark interactions. This also illustrates the comparison of low-mass LHC sensitivity with constraints on the flavor-independent Z' boson from electroweak and quarkonium measurements. To derive these constraints, we compute the Z' mixing with the Z, the photon, and the meson, emphasizing the logarithmic dependence on the masses of the new electroweak-charged fermions (``anomalons") required to cancel the gauge anomalies. We update the coupling-mass plot, extending it for Z' masses from 5 GeV to 5 TeV.
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