Radiative Corrections to the Zbb and Zτ<SUP>+</SUP>τ<SUP>－</SUP> Vertices in a Realistic One-Family Extended Technicolor Model

Yue Chongxing; Kuang Yuping; Lu Gongru

Chinese Physics C> 1996, Vol. 20> Issue(11) : 997-1002

Radiative Corrections to the Zbb and Zτ⁺τ^－ Vertices in a Realistic One-Family Extended Technicolor Model

Physics Department,Henan Normal University, Xin Xiang 4530022 Institute of Modem Physics, Tsinghua University,Beijing 100084

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Abstract：
In a realistic effective one-family extended technicolor(ETC)model without exact custodial symmetry, we calculate the one-loop corrections to the Zbb and Zτ⁺τ^－ vertices from the sideways and diagonal ETC gauge boson exchange.The results show that both the Z→ bb partial Width Γ_b and branching ratio R_b and the τ polarization asymmetry parameter A_τ are enhanced by the corrections and are in agreement with the present experimental data.

References

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Yue Chongxing, Kuang Yuping and Lu Gongru. Radiative Corrections to the Zbb and Zτ⁺τ^－ Vertices in a Realistic One-Family Extended Technicolor Model[J]. Chinese Physics C, 1996, 20(11): 997-1002.

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Received: 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

Radiative Corrections to the Zbb and Zτ⁺τ^－ Vertices in a Realistic One-Family Extended Technicolor Model

Corresponding author: Yue Chongxing,

Physics Department,Henan Normal University, Xin Xiang 4530022 Institute of Modem Physics, Tsinghua University,Beijing 100084

Received Date: 1900-01-01
Accepted Date: 1900-01-01
Available Online: 1996-11-05

Abstract: In a realistic effective one-family extended technicolor(ETC)model without exact custodial symmetry, we calculate the one-loop corrections to the Zbb and Zτ⁺τ^－ vertices from the sideways and diagonal ETC gauge boson exchange.The results show that both the Z→ bb partial Width Γ_b and branching ratio R_b and the τ polarization asymmetry parameter A_τ are enhanced by the corrections and are in agreement with the present experimental data.

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Radiative Corrections to the Zbb and Zτ⁺τ^－ Vertices in a Realistic One-Family Extended Technicolor Model

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Radiative Corrections to the Zbb and Zτ⁺τ^－ Vertices in a Realistic One-Family Extended Technicolor Model

Corresponding author: Yue Chongxing,

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Radiative Corrections to the Zbb and Zτ+τ－ Vertices in a Realistic One-Family Extended Technicolor Model

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Radiative Corrections to the Zbb and Zτ+τ－ Vertices in a Realistic One-Family Extended Technicolor Model

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Radiative Corrections to the Zbb and Zτ⁺τ^－ Vertices in a Realistic One-Family Extended Technicolor Model

Radiative Corrections to the Zbb and Zτ⁺τ^－ Vertices in a Realistic One-Family Extended Technicolor Model