Resummation of high order corrections in Z boson plus jet production at the LHC
Resummation of high order corrections in Z boson plus jet production at the LHC
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DOI：
10.1103/physrevd.100.054032
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发表时间：
2018-10
影响因子：
5
通讯作者：
P. Sun;B. Yan;C. Yuan;F. Yuan
中科院分区：
文献类型：
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作者：
P. Sun;B. Yan;C. Yuan;F. Yuan
作者：Sun，P; Yan，B; Yuan，CP; Yuan，F|摘要：© 2019作者。由美国物理学会出版。我们研究了在LHC上Z玻色子加喷流产生中的多重软胶子辐射效应。应用横动量相关的因式分解方法，将Z玻色子加领先喷流末态系统的小横动量引入的大扰动，在次领先对数（NLL）精度下，在强相互作用耦合展开式中进行了各阶的数值计算.我们还比较了我们的再确认计算的预测CMS数据，通过采用重新加权的程序来估计从Z玻色子衰变中对轻子施加运动学削减的影响，我们发现，对于LHC中pp→Z+喷流的产生，末态Z玻色子和领先喷流系统的不平衡横向动量和方位角关联都很好地吻合。
Author(s): Sun, P; Yan, B; Yuan, CP; Yuan, F | Abstract: © 2019 authors. Published by the American Physical Society. We study the multiple soft gluon radiation effects in Z-boson plus jet production at the LHC. By applying the transverse-momentum-dependent factorization formalism, the large logarithms introduced by the small total transverse momentum of the Z-boson plus leading-jet final-state system are resummed to all orders in the expansion of the strong interaction coupling at the accuracy of the next-to-leading logarithm (NLL). We also compare the prediction of our resummation calculation to the CMS data by employing a reweighting procedure to estimate the effect from imposing kinematic cuts on the leptons from Z-boson decay, and we find good agreement for both the imbalance transverse momentum and the azimuthal angle correlation of the final-state Z-boson and leading-jet system, for pp→Z+jet production at the LHC.