Production and decay of the neutral top-pion in high energy e+e− colliders
نویسندگان
چکیده
We study the production and decay of the neutral top-pion π0 t predicted by topcolor-assisted technicolor(TC2) theory. Our results show that, except the dominant decay modes bb̄, t̄c and gg, the π0 t can also decay into γγ and Zγ modes. It can be significantly produced at high energy e+e− collider(LC) experiments via the processes e+e− → π0 t γ and e+e− → Zπ0 t . We further calculate the production cross sections of the processes e+e− → γπ0 t → γt̄c and e+e− → Zπ0 t → Zt̄c. We find that the signatures of the neutral top-pion π0 t can be detected via these processes. PACS number(s): 12.60Nz, 14.80.Mz This work is supported by the National Natural Science Foundation of China, the Excellent Youth Foundation of Henan Scientific Committee; and Foundation of Henan Educational Committee. E-mail:[email protected]
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