Higher-order QCD corrections for the W-boson transverse momentum distribution
Higher-order QCD corrections for the W-boson transverse momentum distribution
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W 玻色子横向动量分布的高阶 QCD 校正
DOI：
10.1103/physrevd.87.014001
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发表时间：
2012
影响因子：
5
通讯作者：
R. Gonsalves
中科院分区：
文献类型：
--
作者：
N. Kidonakis;R. Gonsalves
我们目前的结果W玻色子生产在大横动量在LHC和Tevatron能量。我们计算了微分截面的完全次-首阶（NLO）QCD修正和高阶软胶子修正。软胶子的贡献是通过双圈软反常维数在次-次-首对数（NNLL）精度下计算的。给出了NLO和近似次-次-首阶（NNLO）p_T分布。我们的数值计算结果与LHC最近的数据吻合得很好。
We present results for W-boson production at large transverse momentum at LHC and Tevatron energies. We calculate complete next-to-leading-order (NLO) QCD corrections and higher-order soft-gluon corrections to the differential cross section. The soft-gluon contributions are resummed at next-to-next-to-leading-logarithm (NNLL) accuracy via the two-loop soft anomalous dimensions. Both NLO and approximate next-to-next-to-leading-order (NNLO) p_T distributions are presented. Our numerical results are in good agreement with recent data from the LHC.