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New insights into the D-s0*(2317) and other charm scalar mesons
Guo, ZH; Meissner, UG; Yao, DL; Guo, ZH (reprint author), Hebei Normal Univ, Dept Phys, Shijiazhuang 050024, Peoples R China.
2015
发表期刊PHYSICAL REVIEW D
卷号92期号:9页码:94008
文章类型Article
摘要Through 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.
学科领域Astronomy & Astrophysics ; Physics
资助者DFG ; DFG ; NSFC ; NSFC ; 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] ; 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] ; 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] ; DFG ; DFG ; NSFC ; NSFC ; 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] ; 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] ; 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]
DOIhttp://dx.doi.org/10.1103/PhysRevD.92.094008
关键词[WOS]CHIRAL PERTURBATION-THEORY ; LARGE-N-C ; HEAVY MESONS ; RESONANCES ; QUARK ; U(1) ; DEPENDENCE ; EXPANSION ; SYMMETRY ; DYNAMICS
收录类别SCI
语种英语
资助者DFG ; DFG ; NSFC ; NSFC ; 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] ; 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] ; 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] ; DFG ; DFG ; NSFC ; NSFC ; 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] ; 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] ; 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]
WOS类目Astronomy & Astrophysics ; Physics, Particles & Fields
引用统计
文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/20800
专题2015年知识产出
通讯作者Guo, ZH (reprint author), Hebei Normal Univ, Dept Phys, Shijiazhuang 050024, Peoples R China.
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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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