Axion-meson mixing in light of recent lattice η-η′ simulations and their two-photon couplings within U(3) chiral theory

doi:10.1007/JHEP04(2023)022

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	Axion-meson mixing in light of recent lattice η-η′ simulations and their two-photon couplings within U(3) chiral theory
	Gao, Rui ; Guo, Zhi-Hui ; Oller, J. A.; Zhou, Hai-Qing
刊名	JOURNAL OF HIGH ENERGY PHYSICS
	2023
期号	4 页码:22
关键词	STRONG-CP PROBLEM LARGE-N-C PERTURBATION-THEORY INVARIANCE SYMMETRY U(1)
ISSN号	1029-8479
DOI	10.1007/JHEP04(2023)022
英文摘要	We study the mixing of the QCD/QCD-like axion and light-flavor mesons pi(0), eta, eta ' within the framework of U(3) chiral perturbation theory up to next-to-leading order in this work. The axion-meson mixing formulas are calculated order by order in the U(3) delta-expansion scheme, namely the joint expansions of the momentum, light-quark masses and 1/N-C. We provide axion-meson mixing relations in terms of the pi(0)-eta-eta ' mixing parameters and their masses. The recent lattice simulations on the eta-eta ' systems turn out to be able to offer valuable inputs to constrain the unknown low-energy constants. The relation of the mass and decay constant of the axion is then further explored based on our updated calculations. The two-photon couplings of the light-flavor mesons, together with the axion, are also investigated in the U(3) chiral theory up to next-to-leading order in the delta-counting scheme.
学科主题	Physics
语种	英语
内容类型	期刊论文
源URL	[http://ir.itp.ac.cn/handle/311006/27928]
专题	理论物理研究所_理论物理所1978-2010年知识产出
作者单位	1.[Gao, Rui 2.Hebei Normal Univ, Dept Phys, Shijiazhuang 050024, Peoples R China 3.Hebei Normal Univ, Hebei Key Lab Photophys Res & Applicat, Shijiazhuang 050024, Peoples R China 4.Chinese Acad Sci, Inst Theoret Phys, CAS Key Lab Theoret Phys, Beijing 100190, Peoples R China 5.[Oller, J. A.] Univ Murcia, Dept Fis, Campus Espinardo, Murcia 30071, Spain 6.Southeast Univ, Sch Phys, Nanjing 211189, Peoples R China
推荐引用方式 GB/T 7714	Gao, Rui,Guo, Zhi-Hui,Oller, J. A.,et al. Axion-meson mixing in light of recent lattice η-η′ simulations and their two-photon couplings within U(3) chiral theory[J]. JOURNAL OF HIGH ENERGY PHYSICS,2023(4):22.
APA	Gao, Rui,Guo, Zhi-Hui,Oller, J. A.,&Zhou, Hai-Qing.(2023).Axion-meson mixing in light of recent lattice η-η′ simulations and their two-photon couplings within U(3) chiral theory.JOURNAL OF HIGH ENERGY PHYSICS(4),22.
MLA	Gao, Rui,et al."Axion-meson mixing in light of recent lattice η-η′ simulations and their two-photon couplings within U(3) chiral theory".JOURNAL OF HIGH ENERGY PHYSICS .4(2023):22.