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arXiv · 1603.09237

Production of extra quarks at the Large Hadron Collider beyond the Narrow Width Approximation

Stefano Moretti·Dermot O'Brien·Luca Panizzi·Hugo Prager
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Abstract

This paper explores the effects of both finite width and interference (with background) in the pair production and decay of extra heavy quarks with charge 2/3 at the Large Hadron Collider (LHC). This dynamics is normally ignored in standard experimental searches and we assess herein the regions of validity of current approaches, also evaluating the performances of a set of current experimental analyses at 8 and 13 TeV for the deterimination of the excluded regions in the $(M_{\rm VLQ},\Gamma_{\rm VLQ})$ plane, $M_{\rm VLQ}$ being the mass of the VLQ and $\Gamma_{\rm VLQ}$ its width. Further, we discuss the configurations of masses, widths and couplings where the latter breaks down.

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Stefano Moretti, Dermot O'Brien, Luca Panizzi, Hugo Prager. 2016-03-30. Production of extra quarks at the Large Hadron Collider beyond the Narrow Width Approximation. https://doi.org/10.1103/physrevd.96.075035

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