不可逆Peccei-Quinn对称和强CP问题的无质量夸克解

IF 11.6 1区物理与天体物理 Q1 PHYSICS, MULTIDISCIPLINARY

Physical Review X Pub Date : 2025-07-14 DOI:10.1103/physrevx.15.031011

Clay Córdova, Sungwoo Hong, Seth Koren

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引用次数: 0

摘要

我们考虑了量规夸克风味的理论，并在量规群具有非平凡全局结构的情况下，确定了分数阶瞬子产生的不可逆Peccei-Quinn对称性。这种对称性的存在仅仅是因为标准模型具有与颜色相同的世代数Ng=Nc，这导致了紫外线SU(9)夸克色味统一理论中强CP问题的无质量下型夸克解。我们展示了如何在不破坏我们的解决方案的情况下生成Cabibbo-Kobayashi-Maskawa风味结构和弱CP违逆。2025年由美国物理学会出版

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Noninvertible Peccei-Quinn Symmetry and the Massless Quark Solution to the Strong CP Problem

We consider theories of gauged quark flavor and identify noninvertible Peccei-Quinn symmetries arising from fractional instantons when the resulting gauge group has nontrivial global structure. Such symmetries exist solely because the standard model has the same number of generations as colors, Ng=Nc, which leads to a massless down-type quark solution to the strong CP problem in an ultraviolet SU(9) theory of quark color-flavor unification. We show how the Cabibbo-Kobayashi-Maskawa flavor structure and weak CP violation can be generated without upsetting our solution.

Published by the American Physical Society

2025

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来源期刊

Physical Review X PHYSICS, MULTIDISCIPLINARY-

CiteScore

24.60

自引率

1.60%

发文量

197

审稿时长

3 months

期刊介绍： Physical Review X (PRX) stands as an exclusively online, fully open-access journal, emphasizing innovation, quality, and enduring impact in the scientific content it disseminates. Devoted to showcasing a curated selection of papers from pure, applied, and interdisciplinary physics, PRX aims to feature work with the potential to shape current and future research while leaving a lasting and profound impact in their respective fields. Encompassing the entire spectrum of physics subject areas, PRX places a special focus on groundbreaking interdisciplinary research with broad-reaching influence.