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arXiv 1612.01293hep-ph
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半包含的次次领头阶深非弹性散射

Towards semi-inclusive deep inelastic scattering at next-to-next-to-leading order

Daniele Anderle, Daniel de Florian, Yamila Rotstein Habarnau

摘要:

在本文中,我们计算的第一组${\cal O}(α_s^2)$修正的半包含深非弹性散射结构函数。我们首先研究的贡献的部分子过程,在这个顺序打开的纵向结构功能的影响。我们用解析的方法进行了完整的计算,并得到了该阶的因子化截面的表达式。特别注意的是,他们的风味分解结构的研究。我们分析的现象学效应的更正发现,即使预计是小的先验,它原来是相当大的,相对于以前的顺序知道,要求一个完整的NNLO计算。

英文摘要:

In this paper, we compute the first set of ${\cal O}(α_s^2)$ corrections to semi-inclusive deep inelastic scattering structure functions. We start by studying the impact of the contribution of the partonic subprocesses that open at this order for the longitudinal structure function. We perform the full calculation analytically, and obtain the expression of the factorized cross section at this order. Special care is given to the study of their flavour decomposition structure. We analyze the phenomenological effect of the corrections finding that, even though expected to be small a priori, it turns out to be sizable with respect to the previous order know, calling for a full NNLO calculation.

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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