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arXiv 0810.5226hep-ex
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Tevatron上顶夸克性质测量的评述

Review of Properties of the Top Quark from Measurements at the Tevatron

Marc-André Pleier

摘要:

本文综述了费米实验室的质子-反质子对撞机在1.96 TeV的质心能量下进行的顶夸克物理研究计划。在两个对撞机探测器CDF和D 0发现顶夸克十多年后,Tevatron一直是唯一产生顶夸克并直接研究它们的加速器。Tevatron增加的亮度和质心能量提供了通过以前不可行的新测量来仔细检查这种最重基本粒子的特性的可能性,例如顶夸克的电弱产生的第一个证据以及由此产生的对所涉及的耦合的直接约束。对顶夸克性质的更好测量为基本粒子物理学标准模型的预测提供了更严格的检验。特别是,顶夸克质量测量的改进,最新的不确定度为0.7%,标志着迄今为止最精确测量的夸克质量,进一步限制了对尚待发现的希格斯玻色子质量的预测。

英文摘要:

This review summarizes the program in the physics of the top quark being pursued at Fermilab's Tevatron proton-antiproton collider at a center of mass energy of 1.96 TeV. More than a decade after the discovery of the top quark at the two collider detectors CDF and D0, the Tevatron has been the only accelerator to produce top quarks and to study them directly. The Tevatron's increased luminosity and center of mass energy offer the possibility to scrutinize the properties of this heaviest fundamental particle through new measurements that were not feasible before, such as the first evidence for electroweak production of top quarks and the resulting direct constraints on the involved couplings. Better measurements of top quark properties provide more stringent tests of predictions from the standard model of elementary particle physics. In particular, the improvement in measurements of the mass of the top quark, with the latest uncertainty of 0.7% marking the most precisely measured quark mass to date, further constrains the prediction of the mass of the still to be discovered Higgs boson.

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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