Combined analysis of the Z(c)(3900) and the Z(cs)(3985) exotic states

doi:10.1103/PhysRevD.105.074018

CORC > 理论物理研究所 > 中国科学院理论物理研究所 > 理论物理所科研产出 > 理论物理所1978-2010年知识产出

	Combined analysis of the Z(c)(3900) and the Z(cs)(3985) exotic states
	Du, Meng-Lin ; Albaladejo, Miguel ; Guo, Feng-Kun ; Nieves, Juan 1
刊名	PHYSICAL REVIEW D
	2022
卷号	105 期号:7 页码:74018
关键词	PENTAQUARK
ISSN号	2470-0010
DOI	10.1103/PhysRevD.105.074018
英文摘要	We have performed a combined analysis of the BESIII data for both the Z(c)(3900) and Z(cs)(3985) structures, assuming that the latter is an SU(3) flavor partner of the former one. We have improved on the previous analysis of Albaladejo et al. [Phys. Lett. B 755, 337 (2016)] by computing the amplitude for the D-1(D) over barD* triangle diagram considering both D- and S-wave D1Dx couplings. We have also investigated effects from SU(3) light-flavor violations, which are found to be moderate and of the order of 20%. The successful reproduction of the BESIII spectra, in both the hidden-charm and hidden-charm strange sectors, strongly supports that the Z(cs)(3985) and Z(c)(3900) are SU(3) flavor partners placed in the same octet multiplet. The best results are obtained when an energy-dependent term in the diagonal D() (D) over bar ((s))(()) interaction is included, leading to resonances (poles above the thresholds) to describe these exotic states. We have also made predictions for the isovector Zc and isodoublet Z(cs), D(D) over bar, and D??Ds molecules, with J(PC) = 1(+-) and J(P) = 1(+), respectively. These states would be heavy-quark spin symmetry (HQSS) partners of the Z(c) and Z(cs). Besides the determination of the masses and widths of the Z(c)(3900) and Z(cs)(3985), we also predict those of the Z(c) and Z*(cs) resonances.
学科主题	Astronomy & Astrophysics ; Physics
语种	英语
内容类型	期刊论文
源URL	[http://ir.itp.ac.cn/handle/311006/27702]
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.Albaladejo, Miguel 2.Univ Chinese Acad Sci, Sch Phys Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Inst Theoret Phys, CAS Key Lab Theoret Phys, Beijing 100190, Peoples R China 4.[Du, Meng-Lin 5.UV, CSIC, Ctr Mixto, Inst Invest Paterna,Inst Fis Corpuscular, Apartado 22085, Valencia 46071, Spain
推荐引用方式 GB/T 7714	Du, Meng-Lin,Albaladejo, Miguel,Guo, Feng-Kun,et al. Combined analysis of the Z(c)(3900) and the Z(cs)(3985) exotic states[J]. PHYSICAL REVIEW D,2022,105(7):74018.
APA	Du, Meng-Lin,Albaladejo, Miguel,Guo, Feng-Kun,&Nieves, Juan.(2022).Combined analysis of the Z(c)(3900) and the Z(cs)(3985) exotic states.PHYSICAL REVIEW D,105(7),74018.
MLA	Du, Meng-Lin,et al."Combined analysis of the Z(c)(3900) and the Z(cs)(3985) exotic states".PHYSICAL REVIEW D 105.7(2022):74018.