Supernova limits on 'QCD axion-like particles'
arxiv(2024)
摘要
In this paper, we explore the phenomenology of massive Axion-Like Particles
(ALPs) coupled to quarks and gluons, dubbed 'QCD ALPs', with an emphasis on the
associated low-energy observables. ALPs coupled to gluons and quarks not only
induce nuclear interactions at scales below the QCD-scale, relevant for ALP
production in supernovae (SNe), but naturally also couple to photons similarly
to the QCD-axion. We discuss the link between the high-energy formulation of
ALP theories and their effective couplings with nucleons and photons. The
induced photon coupling allows ALPs with masses m_a≳1 MeV to
efficiently decay into photons, and astrophysical observables severely
constrain the ALP parameter space. We show that a combination of arguments
related to SN events rule out ALP-nucleon couplings down to g_aN≳
10^-11- 10^-10 for m_a≳1 MeV - a region of the parameter space
that was hitherto unconstrained.
更多查看译文
AI 理解论文
溯源树
样例
生成溯源树,研究论文发展脉络
Chat Paper
正在生成论文摘要