The axion flavour connection

Author:

Darmé Luc,Nardi EnricoORCID,Smarra Clemente

Abstract

Abstract A local flavour symmetry acting on the quarks of the Standard Model can automatically give rise to an accidental global U(1) which remains preserved from sources of explicit breaking up to a large operator dimension, while it gets spontaneously broken together with the flavour symmetry. Such non-fundamental symmetries are often endowed with a mixed QCD anomaly, so that the strong CP problem is automatically solved via the axion mechanism. We illustrate the general features required to realise this scenario, and we discuss a simple construction based on the flavour group SU(3) × SU(2) × U(1)F to illustrate how mass hierarchies can arise while ensuring at the same time a high quality Peccei-Quinn symmetry.

Publisher

Springer Science and Business Media LLC

Subject

Nuclear and High Energy Physics

Cited by 2 articles. 订阅此论文施引文献 订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献

1. Gauge SU(2)f flavour transfers;Journal of High Energy Physics;2024-05-28

2. Heavy fields and the axion quality problem;Physical Review D;2023-08-16

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