Technicolor Dynamics Corrections to Wtb Coupling

Yue Chongxing; Yang Zhengtao; Huang Jinshu; Lu Gongru

Chinese Physics C> 1998, Vol. 22> Issue(6) : 499-506

Technicolor Dynamics Corrections to Wtb Coupling

Department of Physics, Henan Normal University, Xinxiang 4530022 Department of Physics, Zhengzhou University,Zhengzhou 450052

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Abstract：
We consider the contributions of new gauge bosons to Wtb cuopling in one generation technicolor (OGTC) model and topcolor assisted multiscale technicolor (TOPCMTC) model. We find that the exchange of diagonal extended technicolor (ETC) gauge boson has no contribution to Wtb coupling. Using the LEP value of R_b, we calculate the corrections to the CKM matrix element V_tb which arise from the sideways ETC gauge boson in OGTC model and the sideways ETC gauge bosons and colorn exchange in TOPCMTC model. We find that the δV_tb is signficantly large for a certain set of the parameters of either OGTC model or TOPCMTC model which might be detected in the Fermilab Tevatron Run 3 experiments.

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Yue Chongxing, Yang Zhengtao, Huang Jinshu and Lu Gongru. Technicolor Dynamics Corrections to Wtb Coupling[J]. Chinese Physics C, 1998, 22(6): 499-506.

Yue Chongxing, Yang Zhengtao, Huang Jinshu and Lu Gongru. Technicolor Dynamics Corrections to Wtb Coupling[J]. Chinese Physics C, 1998, 22(6): 499-506. shu

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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

Technicolor Dynamics Corrections to Wtb Coupling

Corresponding author: Yue Chongxing,

Department of Physics, Henan Normal University, Xinxiang 4530022 Department of Physics, Zhengzhou University,Zhengzhou 450052

Received Date: 1900-01-01

Accepted Date: 1900-01-01

Available Online: 1998-06-05

Abstract: We consider the contributions of new gauge bosons to Wtb cuopling in one generation technicolor (OGTC) model and topcolor assisted multiscale technicolor (TOPCMTC) model. We find that the exchange of diagonal extended technicolor (ETC) gauge boson has no contribution to Wtb coupling. Using the LEP value of R_b, we calculate the corrections to the CKM matrix element V_tb which arise from the sideways ETC gauge boson in OGTC model and the sideways ETC gauge bosons and colorn exchange in TOPCMTC model. We find that the δV_tb is signficantly large for a certain set of the parameters of either OGTC model or TOPCMTC model which might be detected in the Fermilab Tevatron Run 3 experiments.

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Technicolor Dynamics Corrections to Wtb Coupling

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