Associated production of the top-pions and single top at hadron colliders

In the context of topcolor-assisted technicolor (TC2) models, we study the production of the top-pions pi(0,+/-)(t) with single top quark via the processes p (p) over bar -> t pi(0)(t)+X and p (p) over bar -> t pi(+/-)(t)+X, and discuss the possibility of detecting these new particles at Tevatron and LHC. We find that it is very difficult to observe the signals of these particles via these processes at Tevatron, while the neutral and charged top-pions pi(0)(t) and pi(+/-)(t) can be detecting via considering the same sign top pair tt (c) over bar event and the tt (b) over bar (or tt (b) over bar) event at LHC, respectively.