Top pair production in the littlest Higgs model with T-parity

ZHANG Feng; ZHAO Guo-Ming; LI Yong-Sheng; WANG Li-Na

doi:10.1088/1674-1137/33/1/002

Chinese Physics C> 2009, Vol. 33> Issue(1) : 6-9 DOI: 10.1088/1674-1137/33/1/002

Top pair production in the littlest Higgs model with T-parity

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Abstract：
In the framework of the littlest Higgs model with T-parity, we study the top pair production at the next generation colliders like LHC and ILC. We find that the order O(α_s) corrections to the standard model top pair production cross section at LHC can be very small and the magnitude is below 1%. However, the magnitude of corrections to the standard model top pair production rate at ILC
may be over 5% for reasonable values of the parameters. Besides this, the corrections to the asymmetry A_LR(tt) may be more sizable. Therefore, the top pair production at ILC may serve as a probe of the littlest Higgs model with T-parity, especially the asymmetry A_LR(tt).

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ZHANG Feng, ZHAO Guo-Ming, LI Yong-Sheng and WANG Li-Na. Top pair production in the littlest Higgs model with T-parity[J]. Chinese Physics C, 2009, 33(1): 6-9. doi: 10.1088/1674-1137/33/1/002

ZHANG Feng, ZHAO Guo-Ming, LI Yong-Sheng and WANG Li-Na. Top pair production in the littlest Higgs model with T-parity[J]. Chinese Physics C, 2009, 33(1): 6-9. doi: 10.1088/1674-1137/33/1/002 shu

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Received: 2008-01-08
Revised: 2008-06-16

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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

Top pair production in the littlest Higgs model with T-parity

Corresponding author: ZHANG Feng,

Received Date: 2008-01-08

Accepted Date: 2008-06-16

Available Online: 2009-01-11

Abstract:

In the framework of the littlest Higgs model with T-parity, we study the top pair production at the next generation colliders like LHC and ILC. We find that the order O(α_s) corrections to the standard model top pair production cross section at LHC can be very small and the magnitude is below 1%. However, the magnitude of corrections to the standard model top pair production rate at ILC
may be over 5% for reasonable values of the parameters. Besides this, the corrections to the asymmetry A_LR(tt) may be more sizable. Therefore, the top pair production at ILC may serve as a probe of the littlest Higgs model with T-parity, especially the asymmetry A_LR(tt).

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Top pair production in the littlest Higgs model with T-parity

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通讯作者: 陈斌, bchen63@163.com

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