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arXiv 0810.2793hep-ex
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Tevatron上单顶夸克产生的测量

Measurements of Single-Top Quark Production at the Tevatron

Thomas R. Junk

摘要:

本文介绍了在费米实验室Tevatron装置上对单产生顶夸克截面的最新测量结果。小的预期信号和大的不确定背景需要仔细的事件选择,用于将信号事件与背景事件分离的复杂方法,以及基于数据的背景预测和拟合。CDF和D 0的合作都有可靠的证据证明单顶生产,分别使用2.7 fb-1和0.9 fb-1的数据。这两个合作项目都进行了几项分析,以测量总的单顶截面sigma_s + sigma_t,以及分别测量sigma_s和sigma_t。

英文摘要:

The latest measurements of the cross sections for singly-produced top quarks at the Fermilab Tevatron are presented. The small expected signals and the large, uncertain backgrounds require careful event selection, sophisticated methods for separating signal events from background events, and data-based background predictions and fits. Both the CDF and D0 collaborations have solid evidence of single top production, using 2.7 fb-1 and 0.9 fb-1 of data, respectively. Both collaborations perform several analyses to measure the total single-top cross section sigma_s + sigma_t, as well as sigma_s and sigma_t separately.

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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