Low-energy scattering of the (D*(D)over-bar*)(+/-) system and the resonancelike structure Z(c)(4025)

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	*Low-energy scattering of the (D(D)over-bar)(+/-) system and the resonancelike structure Z(c)(4025)*
	Chen, Y; Gong, M; Lei, YH; Li, N; Liang, J; Liu, C; Liu, JL; Liu, YF; Liu, YB; Liu, ZF
刊名	PHYSICAL REVIEW D
	2015
卷号	92 期号:5 页码:54507
通讯作者	Liu, C (reprint author), Peking Univ, Sch Phys, Beijing 100871, Peoples R China.
英文摘要	In this paper, low-energy scattering of the (D(D) over bar)(+/-) meson system is studied within Luscher's finite-size formalism using N-f = 2 twisted-mass gauge field configurations. With three different pion mass values, the s-wave threshold scattering parameters-namely the scattering length a(0) and the effective range r(0)-are extracted in the J(PC) = 1(+-) channel. Our results indicate that, in this particular channel, the interaction between the two vector charmed mesons is weakly repulsive in nature and hence it does not support the possibility of a shallow bound state for the two mesons, at least for the pion mass values being studied. However, these results might suffer from undetermined systematic errors due to low-lying states ignored in this exploratory study. Still, it provides some useful information on the nature of the newly discovered resonance-like structure Z(c)(4025) observed in various experiments.
学科主题	Astronomy & Astrophysics ; Physics
类目[WOS]	Astronomy & Astrophysics ; Physics, Particles & Fields
关键词[WOS]	HIDDEN CHARM ; MOLECULE ; LATTICE ; MATRIX ; STATES
收录类别	SCI
语种	英语
内容类型	期刊论文
源URL	[http://ir.itp.ac.cn/handle/311006/20855]
专题	理论物理研究所_理论物理所1978-2010年知识产出
推荐引用方式 GB/T 7714	Chen, Y,Gong, M,Lei, YH,et al. Low-energy scattering of the (D(D)over-bar)(+/-) system and the resonancelike structure Z(c)(4025)[J]. PHYSICAL REVIEW D,2015,92(5):54507.
APA	Chen, Y.,Gong, M.,Lei, YH.,Li, N.,Liang, J.,...&Zhang, JB.(2015).Low-energy scattering of the (D(D)over-bar)(+/-) system and the resonancelike structure Z(c)(4025).PHYSICAL REVIEW D,92(5),54507.
MLA	Chen, Y,et al."Low-energy scattering of the (D(D)over-bar)(+/-) system and the resonancelike structure Z(c)(4025)".PHYSICAL REVIEW D 92.5(2015):54507.