NLO QCD corrections to five-jet production at LEP and the extraction of αs(MZ)
NLO QCD corrections to five-jet production at LEP and the extraction of αs(MZ)
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NLO QCD 对 LEP 的五射流生产进行修正并提取 αs(MZ)
DOI：
10.1007/jhep11(2010)050
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发表时间：
2010
影响因子：
5.4
通讯作者：
G. Zanderighi
中科院分区：
文献类型：
--
作者：
R. Frederix;S. Frixione;K. Melnikov;G. Zanderighi
在LEP实验中研究的最高排他射流多重性为5。本文计算了五个喷注e+e−湮灭的次领先阶QCD修正，基本上结束了LEP上排他性jetty末态的（纯）微扰QCD研究。我们比较固定阶微扰的结果与ALEPH数据。我们估计强子化修正五喷流观测使用事件发生器SHERPA，它采用CKKW程序结合联合收割机可靠的微扰处理的高多重性喷流最终状态与部分子阵雨。结果表明，从LEP 1和LEP 2的五喷流分辨率参数和五喷流速率的分布中可以提取出强耦合常数$ {\alpha_s}\left（{{M_Z}} \right）= 0.1156_{ - 0.0034}^{ + 0.0041} $的竞争值。
The highest exclusive jet multiplicity studied at LEP experiments is five. In this paper we compute the next-to-leading order QCD corrections to e+e− annihilation to five jets, essentially closing the (pure) perturbative QCD studies of exclusive jetty final states at LEP. We compare fixed-order perturbative results with ALEPH data. We estimate hadronization corrections to five-jet observables using the event generator SHERPA, which employs the CKKW procedure to combine a reliable perturbative treatment of high-multiplicity jet final states with parton showers. We show that a competitive value of the strong coupling constant $ {\alpha_s}\left( {{M_Z}} \right) = 0.1156_{ - 0.0034}^{ + 0.0041} $ can be extracted from the distribution of the five-jet resolution parameter and the five-jet rate at LEP1 and LEP2.
关于蒙特卡罗工具和单循环程序之间标准接口的提案
影响因子：
6.3
作者：
Binoth T
通讯作者：
Binoth T