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Yu, Hao; Zhao, Ze1; Zhang, Ailin
Dynamical mixing between 2(3)S(1) and 1(3)D(1) charmed mesons
Source PublicationPHYSICAL REVIEW D
Language英语
KeywordRELATIVIZED QUARK-MODEL HEAVY-LIGHT MESONS D-S DECAY ANNIHILATION
AbstractIn charmed D and D-s mesons sector, the matrix of a Hamiltonian in a quark potential model is computed in the 2(3)S(1) and 1(3)D(1) subspace. The masses of four mixed states of 2(3)S(1) and 1(3)D(1) denoted with D-1* (2635), D-1*(2739), D-s1* (2715) and D-s1* (2805) are obtained. It is an off-diagonal part of the spin-orbit tensor interaction that causes the mixing between the 2(3)S(1) and 1(3)D(1) states. The mixing angles between the 2(3)S(1) and 1(3)D(1) states are tiny. Under the mixing, a(3)P(0) model is employed to compute the hadronic decay widths of all OZI-allowed decay channels of the four mixed states. The two light mixed states D-1*(2635) and D-s(1)*(2715) are close in mass to D-J*(2600) and D-s1*(2700), while the two heavy mixed states D-1*(2739) and Di(s1)*(2805) are lighter in mass than D(2750) and D-s1*(2860). The mixing angles obtained from dynamical interaction are inconsistent with the mixing angles obtained from hadronic decay. Based on mass spectra and hadronic decay analyses, D-J*(2600), D(2750), D-s1*(2700), and D-s1*(2860) are impossibly the mixed states of 2(3)S(1) and 1(3)D(1) at the small mixing angles. The inconsistence implies that D-1*(2760) and D-s1*(2860) have not been properly resolved from present experimental data, or there exist large unknown off-diagonal interactions that result in large mixing angles.
2020
ISSN1550-7998
Volume102Issue:5Pages:54013
Cooperation Status国内
Subject AreaAstronomy & Astrophysics ; Physics
MOST Discipline CatalogueAstronomy & Astrophysics ; Physics, Particles & Fields
DOI10.1103/PhysRevD.102.054013
Indexed BySCIE
Citation statistics
Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/27217
CollectionSCI期刊论文
Affiliation1.Shanghai Univ, Dept Phys, Shanghai 200444, Peoples R China
2.Chinese Acad Sci, CAS Key Lab Theoret Phys, Inst Theoret Phys, Beijing 100190, Peoples R China
Recommended Citation
GB/T 7714
Yu, Hao,Zhao, Ze,Zhang, Ailin. Dynamical mixing between 2(3)S(1) and 1(3)D(1) charmed mesons[J]. PHYSICAL REVIEW D,2020,102(5):54013.
APA Yu, Hao,Zhao, Ze,&Zhang, Ailin.(2020).Dynamical mixing between 2(3)S(1) and 1(3)D(1) charmed mesons.PHYSICAL REVIEW D,102(5),54013.
MLA Yu, Hao,et al."Dynamical mixing between 2(3)S(1) and 1(3)D(1) charmed mesons".PHYSICAL REVIEW D 102.5(2020):54013.
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