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arXiv 0909.2022hep-phhep-ex
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利用终态伪快速性改善LHC的s通道共振观测量

Using Final State Pseudorapidities to Improve s-channel Resonance Observables at the LHC

Ross Diener, Stephen Godfrey, Travis A. W. Martin

摘要:

我们研究使用末态粒子赝快度测量的s-通道共振在LHC。原则上,可以使用质心系中的角分布,可能使用中心边缘不对称测量A_CE来区分s通道共振的自旋。此外,前后不对称性测量A_FB可用于区分额外中性规范玻色子的模型。在本说明中,我们将展示如何使用基于末态粒子的伪快度的简单方法来改进这些测量,并给出几种代表性模型的A_FB和A_CE的预期结果。

英文摘要:

We study the use of final state particle pseudorapidity for measurements of s-channel resonances at the LHC. Distinguishing the spin of an s-channel resonance can, in principle, be accomplished using angular distributions in the centre-of-mass frame, possibly using a centre-edge asymmetry measurement, A_CE. In addition, forward-backward asymmetry measurements, A_FB, can be used to distinguish between models of extra neutral gauge bosons. In this note we show how these measurements can be improved by using simple methods based on the pseudorapidity of the final state particles and present the expected results for A_FB and A_CE for several representative models.

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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