Photoproduction of the Charged Top-Pions at the LHeC

The top triangle moose (TTM) model, which can be seen as the deconstructed version of the topcolor-assisted technicolor (TC2) model, predicts the existence of the charged top-pions pi(+/-)(t) in low energy spectrum. In the context of this model, we consider photoproduction of pi(+/-)(t) via the subprocesses gamma b -> t pi(-)(t) and gamma(b) over bar - (t) over bar pi(+)(t) at the large hadron-electron collider (LHeC), in which high energy photon beams are generated by using the Compton backscatting method. We find that, as long as the charged top-pions are not too heavy, they can be abundantly produced via gamma b collision.