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arXiv 0909.2651hep-ph
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TeV尺度重力模型中LHC到${\cal O}(α_s)$的Z玻色子对产生

Z boson pair production at the LHC to ${\cal O}(α_s)$ in TeV scale gravity models

Neelima Agarwal, V. Ravindran, V. K. Tiwari, Anurag Tripathi

摘要:

给出了大额外维ADD模型中强子碰撞中两个Z玻色子产生的次-首阶QCD修正的第一个结果。通过考虑所有的部分子过程,得到了QCD中有序$α_s$的各种运动学分布。我们估计了QCD修正对各种观测量的影响,发现它们是显著的。我们还表明,当包括${\cal O}(α_s)$效应时,因子分解尺度不确定性降低。

英文摘要:

The first results on next-to-leading order QCD corrections to the production of two Z bosons, in hadronic collisions in the large extra dimension ADD model are presented. Various kinematical distributions are obtained to order $α_s$ in QCD by taking into account all the parton level subprocesses. We estimate the impact of the QCD corrections on various observables and find that they are significant. We also show the reduction in factorisation scale uncertainity when ${\cal O}(α_s)$ effects are included.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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