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arXiv 1007.5183hep-phhep-ex
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电子束极化的e^+ e^-碰撞中新标量和张量相互作用的顶旋分析

Top-spin analysis of new scalar and tensor interactions in e^+ e^- collisions with beam polarization

B. Ananthanarayan, Monalisa Patra, Saurabh D. Rindani

摘要:

我们利用顶部极化过程e+ e- \rightarrow t \bar{t}在ILC与横向光束偏振探测的标量和张量类型的相互作用超出了标准模型,并解开他们各自的贡献。与现实的积分亮度的相互作用的90%置信水平的限制,并发现提高了一个数量级的情况下,当顶夸克的自旋没有测量。在\sqrt{s} =500和800 GeV、积分亮度为500 fb^{-1}和完全偏振光束的情况下,标量和张量耦合的实部和虚部的灵敏度可以达到10^{-3} TeV^{-2}的数倍。一个强大的模型独立的框架,包容性的测量是用来描述自旋动量相关和他们的C,P和T属性是在技术附录。

英文摘要:

We utilize top polarization in the process e+ e-\rightarrow t\bar{t} at the ILC with transverse beam polarization to probe interactions of the scalar and tensor type beyond the standard model and to disentangle their individual contributions. 90% confidence level limits on the interactions with realistic integrated luminosity are presented and are found to improve by an order of magnitude compared to the case when the spin of the top quark is not measured. Sensitivities of the order of a few times 10^{-3} TeV^{-2} for real and imaginary parts of both scalar and tensor couplings at \sqrt{s}=500 and 800 GeV with an integrated luminosity of 500 fb^{-1} and completely polarized beams is shown to be possible. A powerful model-independent framework for inclusive measurements is employed to describe the spin-momentum correlations and their C, P and T properties is presented in a technical appendix.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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