Molecular states in Ds(∗)+Ξc(',*) systems

doi:10.1088/1674-1137/acf65e

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	*Molecular states in Ds(∗)+Ξc(',) systems**
	Yalikun, Nijiati ; Dong, Xiang-Kun ; Zou, Bing-Song
刊名	CHINESE PHYSICS C
	2023
卷号	47 期号:12 页码:123101
关键词	HIDDEN-CHARM PENTAQUARK CHIRAL LAGRANGIANS BARYONS MODEL MESON LAMBDA(B) SPECTRUM STRANGENESS RESONANCES HADRONS
ISSN号	1674-1137
DOI	10.1088/1674-1137/acf65e
英文摘要	The possible hadronic molecules in D(& lowast;)+s Xi(',& lowast;)c systems with JP=1/2-,3/2-, and 5/2- are investigated with interactions described by light meson exchanges. By varying the cutoff in a phenomenologically reasonable range of 1-2.5 GeV, we find ten near-threshold (bound or virtual) states in the single-channel case. After introducing the coupled-channel dynamics of D+s Xi c-D+s Xi ' c-D & lowast;+s Xi c-D+s Xi & lowast;c-D & lowast;+s Xi ' c-D & lowast;+s Xi & lowast;c systems, these states, except those below the lowest channels in each JP sector, move into the complex energy plane and become resonances in the mass range 4.43-4.76 GeV. Their spin-parities and nearby thresholds are 1/2-(D+s Xi c), 1/2-(D+s Xi ' c), 1/2-(D & lowast;+s Xi c), 1/2-(D & lowast;+s Xi ' c), 1/2-(D & lowast;+s Xi & lowast;c), 3/2-(D & lowast;+s Xi c), 3/2-(D+s Xi c), 3/2-(D & lowast;+s Xi ' c), 3/2-(D & lowast;+s Xi & lowast;c), and 5/2-(D & lowast;+s Xi & lowast;c). The impact of the delta(r)-term in the one-boson-exchange model on these states is presented. Setting Lambda=1.5 GeV as an illustrative value, it is found that 1/2-(D+s Xi c) is a stable bound state (becoming unstable if the coupling to lower channels is turned on), 1/2-(D & lowast;+s Xi c) and 3/2-(D & lowast;+s Xi c) are physical resonances in cases where the delta(r)-term is included or excluded, and the other seven states are physical resonances or virtual-state-like poles near thresholds, depending on whether the delta(r)-term is included. In addition, the partial decay widths of the physical resonances are provided. These double-charm hidden-strangeness pentaquark states, as the partners of the experimentally observed Pc and Pcs states, can be searched for in the D(& lowast;)Lambda c final states in the future.
学科主题	Physics
语种	英语
内容类型	期刊论文
源URL	[http://ir.itp.ac.cn/handle/311006/28025]
专题	理论物理研究所_理论物理所1978-2010年知识产出
作者单位	1.Xinjiang Univ, Sch Phys Sci & Technol, Urumqi, Peoples R China 2.Chinese Acad Sci, Inst Theoret Phys, CAS Key Lab Theoret Phys, Beijing 100190, Peoples R China 3.Univ Chinese Acad Sci, Sch Phys Sci, Beijing 100049, Peoples R China 4.Chinese Acad Sci, Inst Modern Phys, Southern Ctr Nucl Sci Theory SCNT, Huizhou, Peoples R China
推荐引用方式 GB/T 7714	Yalikun, Nijiati,Dong, Xiang-Kun,Zou, Bing-Song. Molecular states in Ds(∗)+Ξc(',*) systems[J]. CHINESE PHYSICS C,2023,47(12):123101.
APA	Yalikun, Nijiati,Dong, Xiang-Kun,&Zou, Bing-Song.(2023).Molecular states in Ds(∗)+Ξc(',*) systems.CHINESE PHYSICS C,47(12),123101.
MLA	Yalikun, Nijiati,et al."Molecular states in Ds(∗)+Ξc(',*) systems".CHINESE PHYSICS C 47.12(2023):123101.