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Guo, ZH; Meissner, UG; Yao, DL; Guo, ZH (reprint author), Hebei Normal Univ, Dept Phys, Shijiazhuang 050024, Peoples R China.
New insights into the D-s0*(2317) and other charm scalar mesons
Source PublicationPHYSICAL REVIEW D
Language英语
AbstractThrough the scattering of light-pseudoscalar mesons (pi, K,eta,eta') off charmed mesons (D, D-s), we study the D-s0*(2317) state and other relevant charm scalar mesons in a unitarized chiral effective field theory approach. We investigate the charm scalar meson poles with different strangeness (S) and isospin (I) quantum numbers as well as their corresponding residues, which provide the coupling strengths of the charm scalar mesons. Both the light-quark mass and NC dependences of the pole positions of the D-s0*(2317) and the poles with (S,I) = (0,1/2) are analyzed in detail in this work. Interestingly we observe quite similar pion mass trajectories for the resonance pole at around 2.1 GeV with (S,I) = (0; 1/2) to thoseof the f(0)(500) given in the literature. When increasing the values of NC we find that a bound state and a virtual state in the (S,I) = (1,0) channel asymmetrically approach the DK threshold for N-C < 6, and they meet at this threshold at N-C > 6. When N-C > 6, the bound and virtual states move into the complex plane on the second Riemann sheet and become a symmetric pair of resonance poles. For large enough values of N-C, neither the D-s0*(2317) pole nor the poles with (S,I) = (0,1/2) tend to fall down to the real axis, indicating that they do not behave like a standard quark-antiquark meson at large N-C.
2015
Volume92Issue:9Pages:94008
Subject AreaAstronomy & Astrophysics ; Physics
DOIhttp://dx.doi.org/10.1103/PhysRevD.92.094008
Indexed BySCI
Funding OrganizationDFG ; DFG ; DFG ; DFG ; NSFC ; NSFC ; NSFC ; NSFC ; National Natural Science Foundation of China (NSFC) [11575052, 11105038] ; National Natural Science Foundation of China (NSFC) [11575052, 11105038] ; National Natural Science Foundation of China (NSFC) [11575052, 11105038] ; National Natural Science Foundation of China (NSFC) [11575052, 11105038] ; Natural Science Foundation of Hebei Province [A2015205205] ; Natural Science Foundation of Hebei Province [A2015205205] ; Natural Science Foundation of Hebei Province [A2015205205] ; Natural Science Foundation of Hebei Province [A2015205205] ; Education Department of Hebei Province [YQ2014034] ; Education Department of Hebei Province [YQ2014034] ; Education Department of Hebei Province [YQ2014034] ; Education Department of Hebei Province [YQ2014034] ; Department of Human Resources and Social Security of Hebei Province [C201400323] ; Department of Human Resources and Social Security of Hebei Province [C201400323] ; Department of Human Resources and Social Security of Hebei Province [C201400323] ; Department of Human Resources and Social Security of Hebei Province [C201400323] ; Doctor Foundation of Hebei Normal University [L2010B04] ; Doctor Foundation of Hebei Normal University [L2010B04] ; Doctor Foundation of Hebei Normal University [L2010B04] ; Doctor Foundation of Hebei Normal University [L2010B04] ; Chinese Academy of Sciences (CAS) President's International Fellowship Initiative (PIFI) [2015VMA076] ; Chinese Academy of Sciences (CAS) President's International Fellowship Initiative (PIFI) [2015VMA076] ; Chinese Academy of Sciences (CAS) President's International Fellowship Initiative (PIFI) [2015VMA076] ; Chinese Academy of Sciences (CAS) President's International Fellowship Initiative (PIFI) [2015VMA076]
Citation statistics
Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/20800
Collection理论物理所科研产出_SCI论文
Corresponding AuthorGuo, ZH (reprint author), Hebei Normal Univ, Dept Phys, Shijiazhuang 050024, Peoples R China.
Recommended Citation
GB/T 7714
Guo, ZH,Meissner, UG,Yao, DL,et al. New insights into the D-s0*(2317) and other charm scalar mesons[J]. PHYSICAL REVIEW D,2015,92(9):94008.
APA Guo, ZH,Meissner, UG,Yao, DL,&Guo, ZH .(2015).New insights into the D-s0*(2317) and other charm scalar mesons.PHYSICAL REVIEW D,92(9),94008.
MLA Guo, ZH,et al."New insights into the D-s0*(2317) and other charm scalar mesons".PHYSICAL REVIEW D 92.9(2015):94008.
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