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The single charged top-pion production processes e~+e~-→tΠ_t~- and e~+e~-→W~+Π_t~- are studied in theframework of top-color-assisted technicolor(TC2)model.Our studies show that the cross section σ(e~+ e~-→tΠ_t~-)reaches the level of tens of fb and σ(e~+ e~-→W~+Π_t~-)reaches the level of a few fb.With the yearly integrated Iuminosityof ～500 fb~(-1)expected at the planned colliders,one could collect thousands of charged top-pion of events via theprocess e~+ e~-→tΠ_t~- and hundreds of events via the process e~+ e~-→W~+Π_t~-.The flavor changing decay mode Π_t~-→bis the best channel to detect charged top-pion due to the clean SM background.With a large number of events andthe clean background,the charged top-pion should be observable at the planned colliders.Therefore,our studies in thispaper can help us to search for charged top-pion,and furthermore,to test the TC2 model.
The single charged top-pion production processes e ~ + e ~ - → tΠ_t ~ - and e ~ + e ~ → W ~ + Π_t ~ - are studied in the framework of top-color-assisted technicolor (TC2) model.Our studies show that the cross section σ (e ~ + e ~ - → tΠ_t ~ -) reaches the level of tens of fb and σ (e ~ + e ~ - → W ~ + Π_t ~ -) reaches the level of a few fb. With the yearly integration Iuminosity of ~ 500 fb ~ (-1) expected at the planned colliders, one could collect thousands of charged top-pion of events via the process e ~ + e ~ - → tΠ_t ~ - and hundreds of events via the process e ~ + e ~ - → W ~ + Π_t ~ -The flavor changing decay mode Π_t ~ - → bis the best channel to detect charged top-pion due to the clean SM background. Since a large number of events and the clean background, the charged top-pion should be observable at the planned colliders.Therefore, our studies in thispaper can help us to search for charged top-pion, and further, to test the TC2 model.