AbstractNew vector-like quarks are predicted in many new physics scenarios beyond the Standard Model (SM). Based on a model-independent framework, we investigate the prospect of discovering the SU(2) singlet vector-like bottom quark (VLQ-B) in $$e^{+}e^{-}$$
e
+
e
-
collisions at 3 TeV Compact Linear Collider. We study the single VLQ-B production process $$e^{-}e^{+}\rightarrow B{\bar{b}}\rightarrow Zb{\bar{b}}$$
e
-
e
+
→
B
b
¯
→
Z
b
b
¯
with two types of decay channel: $$Z\rightarrow \ell ^{+}\ell ^{-}$$
Z
→
ℓ
+
ℓ
-
, and $$Z\rightarrow \nu {\bar{\nu }}$$
Z
→
ν
ν
¯
. By carrying out a full simulation for the signals and the relevant SM backgrounds, the $$2\sigma $$
2
σ
exclusion limit and $$5\sigma $$
5
σ
discovery prospects are, respectively, obtained on the B quark mass and the coupling strength $$g^{*}$$
g
∗
with the integrated luminosity of 5 $$\hbox {ab}^{-1}$$
ab
-
1
. Our numerical results show that the possible signals of the singlet VLQ-B might be detected at the future high-energy $$e^{+}e^{-}$$
e
+
e
-
linear colliders.
Search for single production of vector-like quarks decaying to a b quark and a Higgs boson
