Littlest Higgs Model and Spin Correlation of Top Quark Production at High Energy Linear e<sup>+</sup> e<sup>-</sup> Colliders

Chin. Phys. Lett.

2006, Vol. 23

Issue (9): 2379-2382 DOI:

Original Articles

Littlest Higgs Model and Spin Correlation of Top Quark Production at High Energy Linear e⁺ e^- Colliders

YUE Chong-Xing¹;WANG Lei¹;WANG Li-Na¹;ZHANG Yan-Ming²

¹Department of Physics, Liaoning Normal University, Dalian 116029 ²Department of Physics, Henan Normal University, Xinxiang 453002

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YUE Chong-Xing, WANG Lei, WANG Li-Na et al 2006 Chin. Phys. Lett. 23 2379-2382

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Abstract 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=800GeV. Our numerical results show that the gauge boson Z_H 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 R’_{B_H}=(C_{B_H}-C_SM)/C_SM can reach 10%, which might be detected in future ILC experiments.

Keywords: 12.60.Fr 13.66.Bc 14.65.Ha

Published: 01 September 2006

PACS:	12.60.Fr	(Extensions of electroweak Higgs sector)
	13.66.Bc	(Hadron production in e?e+ interactions)
	14.65.Ha	(Top quarks)

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https://cpl.iphy.ac.cn/ OR https://cpl.iphy.ac.cn/Y2006/V23/I9/02379

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