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arXiv 1802.08296hep-ph
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未来DUNE对EFT的约束

Future DUNE constraints on EFT

Adam Falkowski, Giovanni Grilli di Cortona, Zahra Tabrizi

摘要:

在不久的将来,高能量尺度下的基本相互作用可能通过在低能量下的精确测量而得到最有效的研究。一种用于汇编和解释精密测量的通用语言是所谓的SMEFT,它是一种有效场论(EFT),其中标准模型(SM)拉格朗日量由高维算子扩展。在本文中,我们调查的DUNE中微子实验约束的SMEFT的可能影响。前所未有的中微子通量提供了一个机会,通过精确测量三叉戟的生产和中微子散射的电子和原子核在DUNE附近的检测器大大提高电流限制。我们量化的DUNE的灵敏度,6维运营商的SMEFT拉格朗日,并发现在某些情况下,运营商抑制O(30)TeV规模可以探测。我们还比较了DUNE达到未来的实验,涉及原子宇称违反和极化不对称的电子散射,这是敏感的SMEFT参数的重叠集。

英文摘要:

In the near future, fundamental interactions at high-energy scales may be most efficiently studied via precision measurements at low energies. A universal language to assemble and interpret precision measurements is the so-called SMEFT, which is an effective field theory (EFT) where the Standard Model (SM) Lagrangian is extended by higher-dimensional operators. In this paper we investigate the possible impact of the DUNE neutrino experiment on constraining the SMEFT. The unprecedented neutrino flux offers an opportunity to greatly improve the current limits via precision measurements of the trident production and neutrino scattering off electrons and nuclei in the DUNE near detector. We quantify the DUNE sensitivity to dimension-6 operators in the SMEFT Lagrangian, and find that in some cases operators suppressed by an O(30) TeV scale can be probed. We also compare the DUNE reach to that of future experiments involving atomic parity violation and polarization asymmetry in electron scattering, which are sensitive to an overlapping set of SMEFT parameters.

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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