Single production of vectorlike B quarks decaying into bh at the CLIC

Abstract

New vectorlike quarks have been predicted in many scenarios of new physics beyond the Standard Model, which may be potentially discovered at the current and future high-energy colliders. Based on a model-independent framework, we study the single production process of the doublet vectorlike B-quark (VLQ-B) at the future Compact Linear Collider (CLIC) and explore the possible signals through the decay channel B→bh with subsequent decay mode of the Higgs boson: h→WW⁎→ℓνjj. By performing a rapid detector simulation of the signal and background events as well as considering the initial state radiation and beamstrahlung effects, the exclusion limit at the 95% confidence level and the 5σ discovery reach in the parameter spaces (the coupling strength κB and the VLQ-B mass) are obtained at the future 3 TeV CLIC with an integrated luminosity of 5 ab−1.