New insights into the D-s0*(2317) and other charm scalar mesons

doi:http://dx.doi.org/10.1103/PhysRevD.92.094008

ITP OpenIR > 理论物理所科研产出 > SCI论文

	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**
发表期刊	PHYSICAL REVIEW D
语种	英语
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.
	2015
卷号	92 期号:9 页码:94008
学科领域	Astronomy & Astrophysics ; Physics
DOI	http://dx.doi.org/10.1103/PhysRevD.92.094008
收录类别	SCI
项目资助者	DFG ; 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]
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	理论物理所科研产出_SCI论文
通讯作者	Guo, ZH (reprint author), Hebei Normal Univ, Dept Phys, Shijiazhuang 050024, Peoples R China.
推荐引用方式 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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