Neutrinoless double β decay with light sterile neutrinos: the contact terms

IF 5.4 1区物理与天体物理 Q1 Physics and Astronomy

Journal of High Energy Physics Pub Date : 2025-04-23 DOI:10.1007/JHEP04(2025)181

Vincenzo Cirigliano, Wouter Dekens, Sebastián Urrutia Quiroga

引用次数: 0

Abstract

We study neutrinoless double-beta decay in extensions of the Standard Model that include n right-handed neutrino singlets, with masses m_s below the GeV scale. Generalizing recently developed matching methods, we determine the m_s dependence of the short-range nn → pp couplings that appear to leading order in the chiral effective field theory description of neutrinoless double beta decay. We focus on two scenarios, corresponding to the minimal νSM and left-right symmetric models. We illustrate the impact of our new results in the case of the νSM, showing a significant impact on the neutrinoless double-beta decay half-life when m_s is in the 200–800 MeV range.

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轻无菌中微子的无中微子双β衰变：接触项

我们研究了标准模型扩展中的无中微子双β衰变，其中包括n个质量低于GeV尺度的右手中微子单重态。推广最近发展的匹配方法，我们确定了在无中子双β衰变的手性有效场论描述中出现领先顺序的短程nn→pp耦合的ms依赖性。我们关注两种情况，对应于最小νSM和左右对称模型。我们在νSM的情况下说明了我们的新结果的影响，显示了当ms在200-800 MeV范围内时，对中微子双β衰变半衰期的显着影响。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of High Energy Physics 物理-物理：粒子与场物理

CiteScore

10.30

自引率

46.30%

发文量

2107

审稿时长

1.5 months

期刊介绍： The aim of the Journal of High Energy Physics (JHEP) is to ensure fast and efficient online publication tools to the scientific community, while keeping that community in charge of every aspect of the peer-review and publication process in order to ensure the highest quality standards in the journal. Consequently, the Advisory and Editorial Boards, composed of distinguished, active scientists in the field, jointly establish with the Scientific Director the journal''s scientific policy and ensure the scientific quality of accepted articles. JHEP presently encompasses the following areas of theoretical and experimental physics: Collider Physics Underground and Large Array Physics Quantum Field Theory Gauge Field Theories Symmetries String and Brane Theory General Relativity and Gravitation Supersymmetry Mathematical Methods of Physics Mostly Solvable Models Astroparticles Statistical Field Theories Mostly Weak Interactions Mostly Strong Interactions Quantum Field Theory (phenomenology) Strings and Branes Phenomenological Aspects of Supersymmetry Mostly Strong Interactions (phenomenology).