Strong coupling constant extraction from high-multiplicity Z + jets observables

Strong coupling constant extraction from high-multiplicity Z + jets observables
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从高多重性 Z 射流可观测量中提取强耦合常数

DOI:
10.1103/physrevd.97.054013
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发表时间:
2018
期刊:
影响因子:
5
通讯作者:
Johnson M
Johnson M
中科院分区:
物理与天体物理2区
文献类型:
--
作者:
Johnson M

文献摘要

相似文献

我们利用ATLAS,3,4射流数据提出了一种强耦合常数提取方法,提取精度接近领先阶QCD。这是第一次使用依赖于高功率耦合常数的过程进行提取。我们得到了与世界平均质量相适应的强耦合常数值,其不确定性与强子对撞机上其他次一级的提取相适应。对于强耦合常数,我们最保守的结果是。
We present a strong coupling constant extraction at next-to-leading order QCD accuracy using ATLAS,3,4 jets data. This is the first extraction using processes with a dependency on high powers of the coupling constant. We obtain values of the strong coupling constant at themass compatible with the world average and with uncertainties commensurate with other next-to-leading order extractions at hadron colliders. Our most conservative result for the strong coupling constant is.