| Littlest Higgs Model and Spin Correlation of Top Quark Production at High Energy Linear e^＋e^- Colliders |
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| 作者姓名： | 岳崇兴 王磊 王丽娜 张延明 |
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| 作者单位： | [1]Department of Physics, Liaoning Normal University, Dalian 116029 [2]Department of Physics, Henan Normal University, Xinxiang 453002 |
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| 基金项目： | Supported by the National Natural Science Foundation of China under Grant No 10475037, and the Programme for New Century Excellent Talents in University （NCET-04-0290）. |
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| 摘 要： | ![]()
Based on the littlest Higgs model, we investigate the spin correlation of the top quark pair production via the process e^＋e^- →tt at the high energy linear e^＋e^- collider （ILC） with a centre-of-mass energy √S = 800 GeV. Our numerical results show that the gauge boson ZH generates very small corrections to the spin correlation observable C in all the parameter space allowed by the electroweak data. However, with reasonable values of the free parameters, the value of the relative correction parameter RBH = （CBH-CSM）/CSM can reach 10%, which might be detected in future ILC experiments.
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| 关 键 词： | 利特尔顿希格斯介子 自旋关联 高能线性e^＋e^-碰撞 夸克对 |
| 收稿时间： | 2006-04-06 |
| 修稿时间： | 2006-04-06 |
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