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arXiv 0807.0024hep-ph
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胶子诱导的QCD对pp --> ZZ --> 1抗-1 1“抗-1”的校正

Gluon-induced QCD corrections to pp --> ZZ --> l anti-l l' anti-l'

T. Binoth, N. Kauer, P. Mertsch

摘要:

本文给出了环诱导胶子熔合过程gg --> Z(photon)Z(photon)--> l anti-l l' anti-l'的计算结果,为LHC H --> ZZ通道中的希格斯玻色子玻色子搜索提供了重要的背景.我们发现光子的贡献对于低于Z对阈值的Higgs质量是很重要的,并且当只有M(1 anti-l),M(1 'anti-l')> 5 GeV切割时,gg诱导过程相对于q反q诱导过程的NLO QCD预测产生了约15%的修正.

英文摘要:

A calculation of the loop-induced gluon-fusion process gg --> Z(photon)Z(photon) --> l anti-l l' anti-l' is presented, which provides an important background for Higgs boson searches in the H --> ZZ channel at the LHC. We find that the photon contribution is important for Higgs masses below the Z-pair threshold and that the gg-induced process yields a correction of about 15% relative to the NLO QCD prediction for the q anti-q-induced process when only a M(l anti-l), M(l' anti-l') > 5 GeV cut is applied.

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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