arXiv 1208.17442012-08-08hep-exphysics.data-an

对最近ATLAS和CMS数据的重要性进行独立评价

Independent evaluation of the significance of the recent ATLAS and CMS data

Gioacchino Ranucci

备注：: 12 pages, 12 figures

摘要：

本文描述了对最近发布的ATLAS和CMS数据的统计意义的独立评估，2011年和2012年上半年每个实验获得的数据约为11 fb-1，用于关注希格斯粒子在两个特别适合于低质量区域的高分辨率衰变通道中的搜索，即双光子和四轻子衰变通道。本说明的范围不是复制合作的分析：考虑到用于评价局部和全局p值的完整概况似然程序的巨大复杂性，以及用于合并众多系统效应的大量滋扰参数，这是不可能的。相反，它的目的是显示的意义，局外人可以推断的基础上发布的数据和绘图，用作输入的简化配置文件的似然过程中，唯一考虑的滋扰参数是背景归一化的双光子通道。在实践中，本说明试图解决的问题的独立判断的重要性的新数据，物理学家被用来执行自己的时候，他们第一次显示特别相关的结果与新的影响的迹象，并在复杂的大型强子对撞机框架是不那么容易做到的，因为在其他实验环境。

英文摘要：

This note describes an independent assessment of the statistical significance of the recently released ATLAS and CMS data, about 11 fb-1 per experiment acquired in 2011 and in the first part of 2012, for what concerns the Higgs search in the two high resolution decay channels especially suited for the low mass region, i.e. the diphoton and four-lepton decay channels. Scope of this note is not to reproduce the analysis of the Collaborations: this would be impossible given the enormous complexity of the complete profile likelihood procedure used to evaluate local and global the p-values, and the huge number of nuisance parameters which are used to incorporate the numerous systematic effects. Rather, its purpose is to show the significance that an outsider can infer only on the basis of the released data and plots, used as input of a simplified profile likelihood procedure in which the only contemplated nuisance parameter is the background normalization in the diphoton channel. In practice, this note tries to address the question of the independent judgment of the significance of new data that physicists are used to perform on their own when they are shown for the first time particularly relevant results with indication of new effects, and that in the complex LHC framework is not so easily doable as in other experimental contexts.

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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