Mixing angle and decay constants of J(P)=1(+) heavy-light mesons

doi:10.1103/PhysRevD.100.076020

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	Mixing angle and decay constants of J(P)=1(+) heavy-light mesons
	Li, Qiang ; Wang, Tianhong 2; Jiang, Yue 2; Wang, Guo-Li ; Chang, Chao-Hsi
刊名	PHYSICAL REVIEW D
	2019
卷号	100 期号:7 页码:76020
关键词	CHARMONIUM QCD
ISSN号	2470-0010
DOI	10.1103/PhysRevD.100.076020
英文摘要	The mass spectra, mixing angle, and decay constants of the J(P) = 1(+) heavy-light mesons are systematically studied within the framework of the Bethe-Salpeter equation (BSE). The full 1(+) Salpeter wave function is given for the first time. The mixing between the 1(+ -) and 1(++) in the 1(+) heavy-light systems are automatically determined by the dynamics in the equation without any man-made mixing. The results indicate that in a rigorous study there exists the phenomenon of mixing angle inversion or mass inversion within 1(+) heavy-light doublet, which is sensitive to the s-quark mass for the charmed mesons and u- or d-quark masses for the bottomed mesons. This inversion phenomenon can answer the question of why we have confused mixing angles in the literature and partly explain the lower mass of D-s1(2460) compared to that of D-s1(2536). The decay constants are also presented and can behave as a good quantity to distinguish the 1(+) doublet in heavy-light mesons. This study indicates that the light-quark mass may play an important role in deciding the mass order, mixing angle, and decay constant relation between the vertical bar j(l )= 3/2 > and vertical bar j(l) = 1/2 > heavy-light mesons.
学科主题	Astronomy & Astrophysics ; Physics
语种	英语
内容类型	期刊论文
源URL	[http://ir.itp.ac.cn/handle/311006/27028]
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.Chinese Acad Sci, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China 2.Northwestern Polytech Univ, Dept Appl Phys, Xian 710129, Shaanxi, Peoples R China 3.Harbin Inst Technol, Dept Phys, Harbin 150001, Heilongjiang, Peoples R China 4.Hebei Univ, Dept Phys, Baoding 071002, Peoples R China 5.CCAST World Lab, POB 8730, Beijing 100080, Peoples R China 6.Univ Chinese Acad Sci, Sch Phys Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Li, Qiang,Wang, Tianhong,Jiang, Yue,et al. Mixing angle and decay constants of J(P)=1(+) heavy-light mesons[J]. PHYSICAL REVIEW D,2019,100(7):76020.
APA	Li, Qiang,Wang, Tianhong,Jiang, Yue,Wang, Guo-Li,&Chang, Chao-Hsi.(2019).Mixing angle and decay constants of J(P)=1(+) heavy-light mesons.PHYSICAL REVIEW D,100(7),76020.
MLA	Li, Qiang,et al."Mixing angle and decay constants of J(P)=1(+) heavy-light mesons".PHYSICAL REVIEW D 100.7(2019):76020.