ETC Interactions and CP Violation in Top Quark Pair Production at the Next Linear Collider

YUE ChongXing; YANG ZhengTao; LU GongRu; LI WeiBin; SUN JunFeng

Chinese Physics C> 2000, Vol. 24> Issue(12) : 1088-1093

ETC Interactions and CP Violation in Top Quark Pair Production at the Next Linear Collider

Physics and Information Engineering Collage, Henan Normal University, Xingxiang 453002, China2 Department of physics, Zhengzhou University, Zhengzhou 450000, China

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We calculate the contributions of extended technicolor (ETC) interaction to CP violation asymmetry parameter δ in top quark pair Production, δ = σ[e-e→t(-)-t(-)]-σ[e-e→t(+)-t(+)]/σ(e-e→t-t), in topcolor-assisted multiscale technicolor (TOPCMTC) model. Using the new LEP value of Rb, we give the numerical results. Our results show that ETC interactions can produce significantly effects on CP violation for a certain range of the parameters in TOPCMTC model. For 5 00 GeV<1/2s< 15 00 GeV, the value of parameter δ is in the range of 8. 65×10^－3 ≤δ≤1. 09×10^－2. We expect that this effect may be testable in the future NLC experiments.

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YUE ChongXing, YANG ZhengTao, LU GongRu, LI WeiBin and SUN JunFeng. ETC Interactions and CP Violation in Top Quark Pair Production at the Next Linear Collider[J]. Chinese Physics C, 2000, 24(12): 1088-1093.

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Received: 1999-10-09
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

ETC Interactions and CP Violation in Top Quark Pair Production at the Next Linear Collider

Corresponding author: YUE ChongXing,

Physics and Information Engineering Collage, Henan Normal University, Xingxiang 453002, China2 Department of physics, Zhengzhou University, Zhengzhou 450000, China

Received Date: 1999-10-09

Accepted Date: 1900-01-01

Available Online: 2000-12-05

Abstract: We calculate the contributions of extended technicolor (ETC) interaction to CP violation asymmetry parameter δ in top quark pair Production, δ = σ[e-e→t(-)-t(-)]-σ[e-e→t(+)-t(+)]/σ(e-e→t-t), in topcolor-assisted multiscale technicolor (TOPCMTC) model. Using the new LEP value of Rb, we give the numerical results. Our results show that ETC interactions can produce significantly effects on CP violation for a certain range of the parameters in TOPCMTC model. For 5 00 GeV<1/2s< 15 00 GeV, the value of parameter δ is in the range of 8. 65×10^－3 ≤δ≤1. 09×10^－2. We expect that this effect may be testable in the future NLC experiments.

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ETC Interactions and CP Violation in Top Quark Pair Production at the Next Linear Collider

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