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arXiv 0902.1593hep-ph
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LHC上Randall-Sundrum引力子的自旋识别

Spin Identification of the Randall-Sundrum Graviton at the LHC

P. Osland, A. A. Pankov, A. V. Tsytrinov, N. Paver

摘要:

利用LHC的Drell-Yan轻子对产生中测量的角积分不对称性作为基本观测量,讨论了在一个扭曲的额外维度中,相对于自旋1和自旋0假设,引力预测的最低层Randall-Sundrum共振的自旋2的识别范围。数值计算结果表明,根据引力子与标准模型粒子的耦合强度,当LHC的积分亮度分别为10和100 fb^{-1}时,自旋2的识别可以扩展到1.0-1.6 TeV和2.4-3.2 TeV的质量尺度。

英文摘要:

Using as basic observable an angular-integrated asymmetry to be measured in Drell-Yan lepton-pair production at the LHC, we discuss the identification reach on the spin-2 of the lowest-lying Randall-Sundrum resonance predicted by gravity in one warped extra dimension, against the spin-1 and spin-0 hypotheses. Numerical results indicate that, depending on the graviton coupling strength to the standard model particles, such a spin-2 identification can extend up to mass scales of 1.0-1.6 TeV and 2.4-3.2 TeV for LHC integrated luminosities of 10 and 100 fb^{-1}, respectively.

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