Z/?* plus multiple hard jets in high energy collisions
Z/?* plus multiple hard jets in high energy collisions
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Z/?* 加上高能碰撞中的多个硬射流
DOI：
10.1007/jhep05(2016)136
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发表时间：
2016
影响因子：
5.4
通讯作者：
Andersen J
中科院分区：
文献类型：
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作者：
Andersen J
我们提出了一个描述的双轻子对生产（通过Z玻色子和虚光子）与至少两个喷注。这种计算增加了固定阶精度的主要优势，在限制大的部分子质心能量的强耦合α s的所有订单。这是在高能喷气机的框架内实现的。通过扩展高能处理以考虑由几个夸克线的Z和γ π-发射引起的多个t-通道交换，使这种计算成为可能。正确描述各种t通道交换的干扰效应需要在全阶计算中扩展减法项。我们描述了这种结构，并将由此产生的预测与最近对LHC数据的一些分析进行了比较。广泛的可观测量的描述是好的，并且，正如预期的那样，从其他方法中脱颖而出，特别是在大dijet不变质量和大dijet快度跨度的区域。
We present a description of the production of di-lepton pair production (through Z boson and virtual photon) in association with at least two jets. This calculation adds to the fixed-order accuracy the dominant logarithms in the limit of large partonic centre-of-mass energy to all orders in the strong coupling α s. This is achieved within the framework of High Energy Jets. This calculation is made possible by extending the high energy treatment to take into account the multiple t-channel exchanges arising from Z and γ∗-emissions off several quark lines. The correct description of the interference effects from the various t-channel exchanges requires an extension of the subtraction terms in the all-order calculation. We describe this construction and compare the resulting predictions to a number of recent analyses of LHC data. The description of a wide range of observables is good, and, as expected, stands out from other approaches in particular in the regions of large dijet invariant mass and large dijet rapidity spans.