Abstract We investigate the discovery potential of the 3~TeV 3 TeV Compact Linear Collider (CLIC) for a singlet vector-like bottom partner B decaying via B tW. B → t W. Focusing on the fully hadronic final state BB tW\, tW, B B ¯ → t W t W, we reconstruct boosted top and W candidates using large- R Valencia jets, supplemented by a merging strategy for partially resolved decays. A systematic scan of the jet-radius parameter identifies R=0. 8 R = 0. 8 as the optimal choice, balancing boosted-jet containment with jet multiplicity. Using a cut-based analysis optimized for the (2t+2W) (2 t + 2 W) topology and an integrated luminosity of 5~ab^-1, 5 ab - 1, CLIC can achieve sensitivity to mB 1. 5~TeV. m B ≲ 1. 5 TeV. These results highlight CLIC’s excellent capability to probe heavy vector-like quarks in high jet multiplicity environments, extending well beyond the reach of current hadron collider searches.
Yang et al. (2026) studied this question.