Production and Decay of the Neutral Top-Pion in High Energy e+e Colliders

  • We study the production and decay of the neutral top-pion π0t in topcolor-assisted technicolor (TC2) theory. Our results show that, except for the dominant decay modes b, c and gg, the πt0 can also decay into γγ and Zγ modes. It can be significantly produced at high energy linear e+e collider (LC) experiments via the processes e+e→π0t γ and e+e→Zπt0. We further calculate the production cross sections of the processes e+e→γπt0→γc and e+e→Zπt0→Zc. We find that the signatures of the neutral top-pion πt0 can be detected via these processes.
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YUE Chong-Xing, XU Qing-Jun and LIU Guo-Li. Production and Decay of the Neutral Top-Pion in High Energy e+e Colliders[J]. Chinese Physics C, 2002, 26(7): 672-677.
YUE Chong-Xing, XU Qing-Jun and LIU Guo-Li. Production and Decay of the Neutral Top-Pion in High Energy e+e Colliders[J]. Chinese Physics C, 2002, 26(7): 672-677. shu
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Received: 2001-09-11
Revised: 1900-01-01
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Production and Decay of the Neutral Top-Pion in High Energy e+e Colliders

    Corresponding author: YUE Chong-Xing,
  • College of Physics and Information Engineering, Henan Normal University, Xinxiang 453002, China

Abstract: We study the production and decay of the neutral top-pion π0t in topcolor-assisted technicolor (TC2) theory. Our results show that, except for the dominant decay modes b, c and gg, the πt0 can also decay into γγ and Zγ modes. It can be significantly produced at high energy linear e+e collider (LC) experiments via the processes e+e→π0t γ and e+e→Zπt0. We further calculate the production cross sections of the processes e+e→γπt0→γc and e+e→Zπt0→Zc. We find that the signatures of the neutral top-pion πt0 can be detected via these processes.

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