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arXiv 1401.4765hep-ph
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大额外维度对LHC产生$ZZW$的可能影响

Possible effects of the large extra dimensions on $ZZW$ production at the LHC

Chen Chong, Guo Lei, Ma Wen-Gan, Zhang Ren-You, Li Xiao-Zhou, Zhang Yu

摘要:

本文研究了在大型强子对撞机(LHC)上,由Kaluza-Klein引力子诱导到QCD次主导阶(NLO)对$ZZW$产生的可能的大额外维(LED)效应.在标准模型和LED模型中给出了积分截面和一些运动学分布。数值计算结果表明,非线性光学QCD修正是相当大的,并显着降低了主导阶(LO)的LED效应强烈依赖于相空间。如果我们应用适当的事件选择标准,则对于$ZZW$生产,总横截面的NLO LED相对差异可能变得相当大。我们发现,LO结果高估了LED效应,是不足以提供一个可信的理论预测。

英文摘要:

We investigate the possible large extra dimensions (LED) effects induced by the Kaluza-Klein gravitons up to the QCD next-to-leading order (NLO) on $ZZW$ production at the large hadron collider (LHC). The integrated cross sections and some kinematic distributions are presented in both the standard model (SM) and the LED model. The numerical results demonstrate that the NLO QCD corrections are sizeable and remarkably reduce the leading order (LO) LED effect depending strongly on the phase space. The NLO LED relative discrepancies of the total cross section could become sizable for the $ZZW$ production, if we apply proper event selection criteria. We find that the LO result overestimates the LED effect and is insufficient to provide a believable theoretical prediction.

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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