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arXiv · 2112.05392

Dijet and electroweak limits on a $Z'$ boson coupled to quarks

Bogdan A. Dobrescu·Felix Yu
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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 $\Upsilon$ 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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Bogdan A. Dobrescu, Felix Yu. 2021-12-10. Dijet and electroweak limits on a $Z'$ boson coupled to quarks. https://doi.org/10.1103/physrevd.109.035004

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