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arXiv 1307.7403hep-phhep-ex
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LHC对WWZ生产的NLO纠正

NLO corrections to WWZ production at the LHC

Dao Thi Nhung, LE Duc Ninh, Marcus M. Weber

摘要:

WWZ的产生是验证标准模型四次规范耦合的重要过程,也是新物理研究的重要背景。因此,对次领先阶(NLO)的良好理论理解是有价值的。在本文中,我们提出的非线性光学电弱(EW)修正的计算与壳层规范玻色子在末态的这个通道。然后将其与NLO QCD修正相结合,得到最新的预测。我们研究了这些修正对总截面和某些分布的影响。NLO EW修正对于总截面是小的,但是对于规范玻色子的横向动量分布在高能区变得重要。

英文摘要:

The production of WWZ at the LHC is an important process to test the quartic gauge couplings of the Standard Model as well as an important background for new physics searches. A good theoretical understanding at next-to-leading order (NLO) is therefore valuable. In this paper, we present the calculation of the NLO electroweak (EW) correction to this channel with on-shell gauge bosons in the final state. It is then combined with the NLO QCD correction to get the most up-to-date prediction. We study the impact of these corrections on the total cross section and some distributions. The NLO EW correction is small for the total cross section but becomes important in the high energy regime for the gauge boson transverse momentum distributions.

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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