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arXiv 1602.05141hep-ph
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${W^+W^-}$产生中的反常耦合、顶质量和部分子簇射效应

Anomalous coupling, top-mass and parton-shower effects in ${W^+W^-}$ production

Johannes Bellm, Stefan Gieseke, Nicolas Greiner, Gudrun Heinrich, Simon Platzer, Christian Reuschle, Johann Felix von Soden-Fraunhofen

摘要:

我们计算了过程$pp\to W^+W^-\to e^+ ν_e μ^-\barν_μ$在非线性光学QCD,也包括有效场论(EFT)运营商介导的$ggW^+W^-$相互作用,这首先发生在8维。我们进一步将GoSam产生的NLO和EFT矩阵元素与HERWIG 7/MATCHBOX框架相结合,这为研究部分子簇射的影响提供了可能性。我们评估的异常耦合的影响,通过比较它们的顶部质量效应以及不确定性的renormalisation,factorisation和硬淋浴尺度的变化。

英文摘要:

We calculate the process $pp\to W^+W^-\to e^+ ν_e μ^-\barν_μ$ at NLO QCD, including also effective field theory (EFT) operators mediating the $ggW^+W^-$ interaction, which first occur at dimension eight. We further combine the NLO and EFT matrix elements produced by GoSam with the HERWIG7/MATCHBOX framework, which offers the possibility to study the impact of a parton shower. We assess the effects of the anomalous couplings by comparing them to top-mass effects as well as uncertainties related to variations of the renormalisation, factorisation and hard shower scales.

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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