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arXiv 0911.3181hep-ph
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NLO QCD对ZZ +强子对撞机喷流产生的修正

NLO QCD corrections to ZZ+jet production at hadron colliders

T. Binoth, T. Gleisberg, S. Karg, N. Kauer, G. Sanguinetti

摘要:

本文用全微分方法计算了Tevatron和LHC中与硬喷流有关的Z玻色子对产生的次-首阶QCD修正。这一过程是强子对撞机研究Higgs粒子和新物理的重要背景。我们发现相当大的修正截面和微分分布,特别是在大型强子对撞机。剩余比例尺的不确定性通常在10%的水平上,并且可以通过对第二个硬射流的排放施加否决权来进一步降低。我们的研究结果证实,非线性光学校正不简单地重新缩放LO预测。

英文摘要:

A fully differential calculation of the next-to-leading order QCD corrections to the production of Z-boson pairs in association with a hard jet at the Tevatron and LHC is presented. This process is an important background for Higgs particle and new physics searches at hadron colliders. We find sizable corrections for cross sections and differential distributions, particularly at the LHC. Residual scale uncertainties are typically at the 10% level and can be further reduced by applying a veto against the emission of a second hard jet. Our results confirm that NLO corrections do not simply rescale LO predictions.

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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