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arXiv 0910.1350hep-ph
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体Randall-Sundrum模型中Kaluza-Klein胶子的胶子引发产生

Gluon-initiated production of a Kaluza-Klein gluon in a Bulk Randall-Sundrum model

B. C. Allanach, F. Mahmoudi, J. P. Skittrall, K. Sridhar

摘要:

在Bulk Randall-Sundrum模型中,规范玻色子的Kaluza-Klein激发是主要的特征。特别是,在强子对撞机上寻找胶子的Kaluza-Klein(KK)激发对于检验这个模型是非常重要的。在QCD的首阶,这个KK胶子的产生只通过q个qbar初始态进行。研究了在QCD中从次领先阶胶子初态产生KK-胶子的过程。我们发现,即使在包括次主导KK胶子循环在这个顺序,次主导阶(NLO)的横截面是微小的相比,主导阶横截面,不太可能影响搜索这种共振在强子对撞机。

英文摘要:

In the Bulk Randall-Sundrum model, the Kaluza-Klein excitations of the gauge bosons are the primary signatures. In particular, the search for the Kaluza-Klein (KK) excitation of the gluon at hadron colliders is of great importance in testing this model. At the leading order in QCD, the production of this KK-gluon proceeds only via q qbar-initial states. We study the production of KK-gluons from gluon initial states at next-to-leading order in QCD. We find that, even after including the sub-dominant KK-gluon loops at this order, the next-to-leading order (NLO) cross-section is tiny compared to the leading order cross-section and unlikely to impact the searches for this resonance at hardon colliders.

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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