Production and Decay of the Neutral Top-Pion in High Energy e<SUP>+</SUP>e<SUP>－</SUP> Colliders

YUE Chong-Xing; XU Qing-Jun; LIU Guo-Li

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2024年10月30日

Chinese Physics C> 2002, Vol. 26> Issue(7) : 672-677

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

College of Physics and Information Engineering, Henan Normal University, Xinxiang 453002, China

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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 π_t⁰ 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^－→Zπ_t⁰. We further calculate the production cross sections of the processes e⁺e^－→γπ_t⁰→γc and e⁺e^－→Zπ_t⁰→Zc. We find that the signatures of the neutral top-pion π_t⁰ can be detected via these processes.

References

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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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沈阳化工大学材料科学与工程学院沈阳 110142

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

Received Date: 2001-09-11
Accepted Date: 1900-01-01
Available Online: 2002-07-05

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 π_t⁰ 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^－→Zπ_t⁰. We further calculate the production cross sections of the processes e⁺e^－→γπ_t⁰→γc and e⁺e^－→Zπ_t⁰→Zc. We find that the signatures of the neutral top-pion π_t⁰ can be detected via these processes.