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An allowed window for heavy neutral leptons below the kaon mass
Journal of High Energy Physics ( IF 5.4 ) Pub Date : 2021-07-26 , DOI: 10.1007/jhep07(2021)193
Kyrylo Bondarenko 1, 2 , Juraj Klaric 2 , Inar Timiryasov 2 , Alexey Boyarsky 3 , Oleksii Mikulenko 3, 4 , Oleg Ruchayskiy 5 , Vsevolod Syvolap 5
Affiliation  

The extension of the Standard Model with two gauge-singlet Majorana fermions can simultaneously explain two beyond-the-Standard-model phenomena: neutrino masses and oscillations, as well as the origin of the matter-antimatter asymmetry in the Universe. The parameters of such a model are constrained by the neutrino oscillation data, direct accelerator searches, big bang nucleosynthesis, and requirement of successful baryogenesis. We show that their combination still leaves an allowed region in the parameter space below the kaon mass. This region can be probed by the further searches of NA62, DUNE, or SHiP experiments.

A preprint version of the article is available at ArXiv.


中文翻译:

kaon 质量以下的重中性轻子的允许窗口

用两个规范单线马约拉纳费米子扩展标准模型可以同时解释两种超出标准模型的现象:中微子质量和振荡,以及宇宙中物质-反物质不对称的起源。这种模型的参数受到中微子振荡数据、加速器直接搜索、大爆炸核合成和成功重子发生的要求的约束。我们表明,它们的组合仍然在 kaon 质量下方的参数空间中留下一个允许的区域。可以通过进一步搜索 NA62、DUNE 或 SHiP 实验来探测该区域。

该文章的预印版可在 ArXiv 上获得。
更新日期:2021-07-27
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