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arXiv 0903.3177hep-ex
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LHC上新带电轻子的可能发现通道

Possible Discovery Channel for New Charged Leptons at the LHC

V. E. Ozcan, S. Sultansoy, G. Unel

摘要:

我们提出了在大型强子对撞机上发现新的带电轻子的可能性。提出的末态包含三个同号轻子,使得这个新通道实际上是没有背景的。该方法被示出为两个不同的情况下:四族标准模型和大统一理论的基础上的E6规范群。一个以250 GeV为带电轻子质量的例子研究表明,在这两种模型中,在14 TeV的质心能量和1 fb^-1的积分亮度下,可以预期大约有8个信号事件。虽然事件产额可能不足以详细测量带电轻子的性质,但它足以通过计数实验宣布发现。

英文摘要:

We propose a channel for the possible discovery of new charged leptons at the Large Hadron Collider. The proposed final state contains three same-sign leptons, making this new channel practically back- groundless. The method is illustrated for two different cases: the four-family Standard Model and the Grand Unified Theory based on the E6 gauge group. An example study taking 250 GeV as the charged lepton mass shows that in both models, about 8 signal events can be expected at 14 TeV center-of-mass energy with 1 fb^-1 of integrated luminosity. Although the event yield might not be sufficient for detailed measurements of the charged lepton properties, it would be sufficient to claim discovery through a counting experiment.

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