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arXiv 1201.4976hep-ex
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在LHC用ATLAS实验测量b-喷流截面和相关的矢量玻色子产生

Measurement of the b-jet cross-section with associated vector boson production with the ATLAS experiment at the LHC

Heather M. Gray

摘要:

使用2010年ATLAS实验收集的35 pb-1大型强子对撞机数据,测量了与含有b-强子的喷流相关的矢量玻色子产生的截面。这样的过程不仅是pQCD的重要测试,而且是大的、不可约的背景,以进行诸如低质量的希格斯玻色子玻色子衰变为b夸克对的搜索,当希格斯玻色子与矢量玻色子联合产生时。理论预测的V+b生产率有很大的不确定性和以前的测量报告的差异。将显示使用电子和μ子通道测量的横截面。比较将作出最近的理论预测,在次领先的顺序α_s。

英文摘要:

A measurement of the cross-section for vector boson production in association with jets containing b-hadrons is presented using 35 pb-1 of data from the LHC collected by the ATLAS experiment in 2010. Such processes are not only important tests of pQCD but also large, irreducible backgrounds to searches such as a low mass Higgs boson decaying to pairs of b-quarks when the Higgs is produced in association with a vector boson. Theoretical predictions of the V+b production rate have large uncertainties and previous measurements have reported discrepancies. Cross-sections measured using in the electron and muon channels will be shown. Comparisons will be made to recent theoretical predictions at the next-to-leading order in alpha_s.

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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