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arXiv 1812.01720hep-ph
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在LHC上寻找顶点位移的重中性轻子

Searching for Heavy Neutral Leptons with Displaced Vertices at the LHC

Asmaa Abada, Nicolás Bernal, Marta Losada, Xabier Marcano

摘要:

重中性轻子自然存在于标准模型的许多有良好动机的扩展中。如果它们的质量只有几十个GeV,它们可能是长期存在的,并导致顶点移位的事件,由于低背景而产生有希望的签名。我们重新审视LHC提供的机会,通过搜索位移顶点来发现这些长寿的状态。我们特别研究的参数空间灵敏度的影响时,所有的混合活性风味考虑在内。

英文摘要:

Heavy Neutral Leptons are naturally present in many well-motivated extensions of the Standard Model. If their mass is of few dozens of GeVs, they can be long-lived and lead to events with displaced vertices, giving rise to promising signatures due to the low background. We revisit the opportunities offered by the LHC to discover these long-lived states via searches with displaced vertices. We study in particular the implication on the parameter space sensitivity when all mixings to active flavors are taken into account.

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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