论文标题

在强耦合常数中,将DRELL-YAN横截面至三阶

The Drell-Yan cross section to third order in the strong coupling constant

论文作者

Duhr, Claude, Dulat, Falko, Mistlberger, Bernhard

论文摘要

我们在敏感QCD中通过虚拟光子交换(通过虚拟光子交换(n $^3 $ lo)在近代到接头到领先顺序(n $^3 $ lo)生产Lepton-Pair的包容性横截面的现象学结果。与Higgs的生产相一致,我们发现HADRONIC横截面在百分比中获得更正,并且对扰动量表的残留依赖性降低。但是,与希格斯案例不同,我们观察到,从尺度变化中得出的不确定性频段不再包含在先前顺序的频段中。

We present phenomenological results for the inclusive cross section for the production of a lepton-pair via virtual photon exchange at next-to-next-to-next-to-leading order (N$^3$LO) in perturbative QCD. In line with the case of Higgs production, we find that the hadronic cross section receives corrections at the percent level, and the residual dependence on the perturbative scales is reduced. However, unlike in the Higgs case, we observe that the uncertainty band derived from scale variation is no longer contained in the band of the previous order.

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