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arXiv 1111.0074hep-ex
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在Tevatron上用$b$夸克寻找末态的标准模型希格斯玻色子

Search for the Standard Model Higgs boson in final states with $b$ quarks at the Tevatron

Karolos Potamianos

摘要:

我们提出的搜索结果的低质量标准模型希格斯玻色子与$W$或$Z$玻色子产生的质心能量为$\sqrt{s}=$ 1.96 TeV的CDF和D0探测器在费米实验室Tevatron对撞机。搜索是在包含一个或两个$b$标记的喷流与两个轻子,或一个轻子和横向能量的不平衡,或只是一个大的横向能量不平衡的事件。在分析中考虑了对应于高达8.5 fb $^{-1}$的综合光度的数据集。这些是在Tevatron中寻找低质量希格斯玻色子的最强大的通道。最近的灵敏度改进进行了讨论。对于Higgs质量为115 \gevcc,最敏感的个体分析的预期灵敏度在95%置信水平(C.L.)下达到SM预测的2.3倍,所有限值均低于SM的5倍。此外,$WZ/ZZ$横截面测量进行验证部署用于寻找希格斯粒子的分析技术。

英文摘要:

We present the result of searches for a low mass Standard Model Higgs boson produced in association with a $W$ or a $Z$ boson at a center-of-mass energy of $\sqrt{s}=$1.96 TeV with the CDF and D0 detectors at the Fermilab Tevatron collider. The search is performed in events containing one or two $b$ tagged jets in association with either two leptons, or one lepton and an imbalance in transverse energy, or simply a large imbalance in transverse energy. Datasets corresponding to up to 8.5 fb$^{-1}$ of integrated luminosity are considered in the analyses. These are the most powerful channels in the search for a low mass Higgs boson at the Tevatron. Recent sensitivity improvements are discussed. For a Higgs mass of 115 \gevcc, the expected sensitivity for the most sensitive individual analyses reaches 2.3 times the SM prediction at 95% confidence level (C.L.), with all limits below 5 times the SM. Additionally, a $WZ/ZZ$ cross-section measurement is performed to validate the analysis techniques deployed for searching for the Higgs.

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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