Scrutinizing the eta-eta ' mixing, masses and pseudoscalar decay constants in the framework of U(3) chiral effective field theory

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	Scrutinizing the eta-eta ' mixing, masses and pseudoscalar decay constants in the framework of U(3) chiral effective field theory
	Guo, XK; Guo, ZH; Oller, JA; Sanz-Cillero, JJ
刊名	JOURNAL OF HIGH ENERGY PHYSICS
	2015
期号	6 页码:175
关键词	Effective field theories Chiral Lagrangians
通讯作者	Guo, ZH (reprint author), Hebei Normal Univ, Dept Phys, Shijiazhuang 050024, Peoples R China.
英文摘要	We study the eta-eta' mixing up to next-to-next-to-leading-order in U(3) chiral perturbation theory in the light of recent lattice simulations and phenomenological inputs. A general treatment for the eta-eta' mixing at higher orders, with the higher-derivative, kinematic and mass mixing terms, is addressed. The connections between the four mixing parameters in the two-mixing-angle scheme and the low energy constants in the U(3) chiral effective theory are provided both for the singlet-octet and the quark-flavor bases. The axial-vector decay constants of pion and kaon are studied in the same order and confronted with the lattice simulation data as well. The quark-mass dependences of m(eta), m(eta') and m(K) are found to be well described at next-to-leading order. Nonetheless, in order to simultaneously describe the lattice data and phenomenological determinations for the properties of light pseudoscalars pi, K, eta and eta', the next-to-next-to-leading order study is essential. Furthermore, the lattice and phenomenological inputs are well reproduced for reasonable values of low the energy constants, compatible with previous bibliography.
学科主题	Physics
类目[WOS]	Physics, Particles & Fields
关键词[WOS]	LARGE-N-C ; PERTURBATION-THEORY ; MESON MASSES ; DYNAMICS ; QUARK ; LIMIT ; CHROMODYNAMICS ; RESONANCES ; U(1)
收录类别	SCI
语种	英语
内容类型	期刊论文
源URL	[http://ir.itp.ac.cn/handle/311006/20951]
专题	理论物理研究所_理论物理所1978-2010年知识产出
推荐引用方式 GB/T 7714	Guo, XK,Guo, ZH,Oller, JA,et al. Scrutinizing the eta-eta ' mixing, masses and pseudoscalar decay constants in the framework of U(3) chiral effective field theory[J]. JOURNAL OF HIGH ENERGY PHYSICS,2015(6):175.
APA	Guo, XK,Guo, ZH,Oller, JA,&Sanz-Cillero, JJ.(2015).Scrutinizing the eta-eta ' mixing, masses and pseudoscalar decay constants in the framework of U(3) chiral effective field theory.JOURNAL OF HIGH ENERGY PHYSICS(6),175.
MLA	Guo, XK,et al."Scrutinizing the eta-eta ' mixing, masses and pseudoscalar decay constants in the framework of U(3) chiral effective field theory".JOURNAL OF HIGH ENERGY PHYSICS .6(2015):175.