Search for heavy vector-like <i>B</i> quark via pair production in fully hadronic channels at CLIC*

Abstract Vector-like quarks (VLQs) feature in new physics models beyond the standard model (SM) to address certain problems it faces. In this study, we investigate the pair production of TeV-scale vector-like B quark (VLQ- B ) at the proposed 3 TeV compact linear collider (CLIC) using a simplified effective lagrangian framework. We consider the decay modes of and , coupled with the hadronic decay of Z and h bosons. The large mass of VLQ- B results in highly boosted Z or h bosons, which tend to form fat-jets. Using detector simulation of the signal and background events, along with jet clustering employing a large radius R , we conduct signal-background analyses. Exclusion limits at the 95% confidence level and 5 discovery prospects are obtained assuming an integrated luminosity of 5 ab −1 .