Contributions From PGBs in TOPCMTC Model to the Top-Quark Rare Decay

Lu Gongru; Pan Qunna; Huang Jinshu; Yue Chongxing

Chinese Physics C> 1999, Vol. 23> Issue(3) : 250-259

Contributions From PGBs in TOPCMTC Model to the Top-Quark Rare Decay

Department of Physics, Henan Normal University, Xinxiaang 4530022 Henan Nanyang Teachers' College, Nanyang 473061

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Abstract：
The decays t→cV(V= Z,γ, g) induced through loop processes are calculated in Topcolor-Assisted Multiscale Technicolor model. We find that the extended technicolor interactions provide the main contribution to these decays, and the total contribution can enhance the Standard Model branching ratios by as much as 5 to 6orders of magnitude, i.e., B(t→cZ)～10^－6,B(t→cβγ)～^10－7,B(t→cg)～10^－5,for the favorable parameter values.

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Lu Gongru, Pan Qunna, Huang Jinshu and Yue Chongxing. Contributions From PGBs in TOPCMTC Model to the Top-Quark Rare Decay[J]. Chinese Physics C, 1999, 23(3): 250-259.

Lu Gongru, Pan Qunna, Huang Jinshu and Yue Chongxing. Contributions From PGBs in TOPCMTC Model to the Top-Quark Rare Decay[J]. Chinese Physics C, 1999, 23(3): 250-259. shu

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Received: 1998-02-26
Revised: 1900-01-01

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通讯作者: 陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

Contributions From PGBs in TOPCMTC Model to the Top-Quark Rare Decay

Corresponding author: Lu Gongru,

Department of Physics, Henan Normal University, Xinxiaang 4530022 Henan Nanyang Teachers' College, Nanyang 473061

Received Date: 1998-02-26

Accepted Date: 1900-01-01

Available Online: 1999-03-05

Abstract: The decays t→cV(V= Z,γ, g) induced through loop processes are calculated in Topcolor-Assisted Multiscale Technicolor model. We find that the extended technicolor interactions provide the main contribution to these decays, and the total contribution can enhance the Standard Model branching ratios by as much as 5 to 6orders of magnitude, i.e., B(t→cZ)～10^－6,B(t→cβγ)～^10－7,B(t→cg)～10^－5,for the favorable parameter values.

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Contributions From PGBs in TOPCMTC Model to the Top-Quark Rare Decay

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