aQGC Studies for WZ in the pp Collisions Using EFT Framework at the LHC

Abstract

Vector boson scattering (VBS) can be idealized as an interaction of gauge bosons radiated from initial state quarks, yielding a final state with two bosons and two jets (VVjj) where V can be W or Z bosons. These VBS processes are widely recognized as being the most sensitive to the effects of new physics, which can be described using the effective field theory (EFT) approach. In this paper, we discuss the implementation of the EFT dimension-eight operators in the study of VBS in the $pp \rightarrow WZjj$ channel. As a final state, two jets and three leptons in proton-proton collisions at $\sqrt{s} = 13$ TeV ($pp \rightarrow 2 jets + WZ$ $\rightarrow$ j j l $\nu$ $l^{'}$ $l^{'}$ where $l = e$, $\mu$) are observed at the Large Hadron Collider (LHC). The data used are collected by the Compact Muon Solenoid (CMS) detector during Run II from the years 2016–2018 with an integrated luminosity of 137 $fb^{-1}$. Results for the searches of the anomalous quartic gauge couplings (aQGC) in the electroweak WZ data sample for the full Run II are presented.

Geetanjali Chaudhary (for the CMS Collaboration)