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arXiv 2202.01787hep-exhep-phhep-thnucl-exnucl-th
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通过无中微子双贝塔衰变探索物质创生

Toward the discovery of matter creation with neutrinoless double-beta decay

Matteo Agostini, Giovanni Benato, Jason A. Detwiler, Javier Menéndez, Francesco Vissani

AI总结:

本文综述了无中微子双贝塔衰变在实验、核理论与粒子理论方面的最新进展,探讨了通过发现这一物质创生过程来揭示中微子马约拉纳本质及超越标准模型新物理的路径。

摘要:

无中微子双贝塔衰变的发现可能即将触手可及。这种假设性的超稀有核衰变为超越粒子物理学标准模型的物理提供了一个特殊的门户。对其的观测将构成对一种物质创生过程的发现,从而佐证关于宇宙为何包含的物质多于反物质以及力如何在高能标下统一的主要理论。它还将证明中微子和反中微子并不是两种不同的粒子,而是可以相互转化,其质量由马约拉纳构想的一种独特机制描述。认识到中微子并非无质量这一事实需要一个解释,并提升了人们对无中微子双贝塔衰变的兴趣。该领域目前正处于一个转折点。新一轮实验正在为未来十年做准备,以覆盖参数空间中的一个重要区域。与此同时,核理论的进展正在为将核衰变与潜在的新物理联系起来奠定基础。同时,粒子理论领域不断为中微子作为自身的反粒子找到新的动机。本综述汇集了与无中微子双贝塔衰变相关的实验、核理论和粒子理论方面的内容,以探索通往其发现——以及超越其发现——的道路。

英文摘要:

The discovery of neutrinoless double-beta decay could soon be within reach. This hypothetical ultra-rare nuclear decay offers a privileged portal to physics beyond the Standard Model of particle physics. Its observation would constitute the discovery of a matter-creating process, corroborating leading theories of why the universe contains more matter than antimatter, and how forces unify at high energy scales. It would also prove that neutrinos and anti-neutrinos are not two distinct particles, but can transform into each other, with their mass described by a unique mechanism conceived by Majorana. The recognition that neutrinos are not massless necessitates an explanation and has boosted interest in neutrinoless double-beta decay. The field stands now at a turning point. A new round of experiments is currently being prepared for the next decade to cover an important region of parameter space. In parallel, advances in nuclear theory are laying the groundwork to connect the nuclear decay with the underlying new physics. Meanwhile, the particle theory landscape continues to find new motivations for neutrinos to be their own antiparticle. This review brings together the experimental, nuclear theory, and particle theory aspects connected to neutrinoless double-beta decay, to explore the path toward - and beyond - its discovery.

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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