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arXiv 2401.08751hep-ph
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LHC顶夸克对产生中新物理的量子探测

Quantum detection of new physics in top-quark pair production at the LHC

Fabio Maltoni, Claudio Severi, Simone Tentori, Eleni Vryonidou

AI总结:

本研究利用量子可观测量分析LHC顶夸克对的自旋关联,发现其与经典观测量互补,并在若干情形下提供额外能力以探测新物理效应。

摘要:

最近在LHC上观测到顶夸克与反顶夸克之间的纠缠,为用量子信息工具解读对撞机数据开辟了道路。在这项工作中,我们研究了量子可观测量在寻找新物理中的相关性。为此,我们研究了源自各种中间共振态的顶/反顶夸克对的自旋关联,并比较了量子可观测量与经典可观测量在发现能力上的差异。我们发现它们提供了互补的信息,并且在若干显著情形下,还提供了探测新效应所需的额外杠杆作用。

英文摘要:

The recent observation of entanglement between top and anti-top quarks at the LHC opens the way to interpreting collider data with quantum information tools. In this work we investigate the relevance of quantum observables in searches of new physics. To this aim, we study spin correlations of top/anti-top pairs originating from various intermediate resonances, and compare the discovery reach of quantum observables compared to classical ones. We find that they provide complementary information and, in several notable cases, also the additional leverage necessary to detect new effects.

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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