N3LO corrections to jet production in deep inelastic scattering using the Projection-to-Born method

N3LO corrections to jet production in deep inelastic scattering using the Projection-to-Born method
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使用 Projection-to-Born 方法对深层非弹性散射中的射流产生进行 N3LO 修正

DOI:
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发表时间:
2018
期刊:
影响因子:
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通讯作者:
E. Glover
E. Glover
中科院分区:
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文献类型:
--
作者:
J. Currie;J. Niehues;A. Vogt;A. Huss;T. Gehrmann;E. Glover

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A bstract计算具有唯一最终状态的过程的高阶QCD修正需要一种扣除实辐射贡献的方法。我们提出了有史以来第一次推广的减法三阶(N3LO)QCD校正的方法。利用投影玻恩方法将包含N3 LO系数函数的联合收割机与包含附加喷流的末态的排他性二阶(NNLO)计算相结合。讨论了该方法的输入要求、优点和潜在应用,并进行了低阶验证。作为一个测试案例,我们计算的N3LO修正运动学分布和生产率的单喷生产在深非弹性散射在实验室框架,并比较它们与数据从ZEUS实验在HERA。在中心快度区域,修正值很小,它们使预测稳定在次百分比水平。的更正大幅增加对向前的快度大对数效应的预期,从而产生一个改进的描述在这个地区的数据。
A bstractComputations of higher-order QCD corrections for processes with exclusive final states require a subtraction method for real-radiation contributions. We present the first-ever generalisation of a subtraction method for third-order (N3LO) QCD corrections. The Projection-to-Born method is used to combine inclusive N3LO coefficient functions with an exclusive second-order (NNLO) calculation for a final state with an extra jet. The input requirements, advantages, and potential applications of the method are discussed, and validations at lower orders are performed. As a test case, we compute the N3LO corrections to kinematical distributions and production rates for single-jet production in deep inelastic scattering in the laboratory frame, and compare them with data from the ZEUS experiment at HERA. The corrections are small in the central rapidity region, where they stabilize the predictions to sub per-cent level. The corrections increase substantially towards forward rapidity where large logarithmic effects are expected, thereby yielding an improved description of the data in this region.
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