Prediction of an exotic state around 4240 MeV with J(PC)=1(-+) as the C-parity partner of Y(4260) in a molecular picture

doi:10.1103/PhysRevD.101.076003

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	Prediction of an exotic state around 4240 MeV with J(PC)=1(-+) as the C-parity partner of Y(4260) in a molecular picture
	Dong, Xiang-Kun ; Lin, Yong-Hui ; Zou, Bing-Song
刊名	PHYSICAL REVIEW D
	2020
卷号	101 期号:7 页码:76003
关键词	DEUTERON STRANGE EXPLANATION MESONS DECAY
ISSN号	2470-0010
DOI	10.1103/PhysRevD.101.076003
英文摘要	The possibility of the Y(4260) being the molecular state of D (D) over bar (1) (2420) + c.c. is investigated in the one boson exchange model. It turns out that the potential of J(PC) = 1(--) state formed by D (D) over bar (1) (2420) + c.c. is attractive and strong enough to bind them together when the momentum cutoff Lambda greater than or similar to 1.4 GeV. To produce the Y(4260) with correct binding energy, we need Lambda approximate to 2.25 GeV. Besides, D (D) over bar (1) (2420) + c.c. can also form a state with exotic quantum numbers, J(PC) = 1(-+), and its potential is more attractive than that of the J(PC) = 1(--) state. Therefore, an exotic state with mass around 4240 MeV [called eta(c1)(4240)] is expected to exist. Our estimation of the mass of the J(PC) = 1(-+) state in charmonium region is in agreement with those predicted by the chiral quark model and the lattice QCD. The possible decay modes and their relative widths are estimated and the results suggest that this exotic state can be searched for in eta eta(c) and eta chi(c1) channels.
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/311006/27057]
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.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.[Dong, Xiang-Kun 3.Lin, Yong-Hui 4.Chinese Acad Sci, Inst Theoret Phys, CAS Key Lab Theoret Phys, Beijing 100190, Peoples R China 5.Cent South Univ, Sch Phys, Changsha 410083, Peoples R China
推荐引用方式 GB/T 7714	Dong, Xiang-Kun,Lin, Yong-Hui,Zou, Bing-Song. Prediction of an exotic state around 4240 MeV with J(PC)=1(-+) as the C-parity partner of Y(4260) in a molecular picture[J]. PHYSICAL REVIEW D,2020,101(7):76003.
APA	Dong, Xiang-Kun,Lin, Yong-Hui,&Zou, Bing-Song.(2020).Prediction of an exotic state around 4240 MeV with J(PC)=1(-+) as the C-parity partner of Y(4260) in a molecular picture.PHYSICAL REVIEW D,101(7),76003.
MLA	Dong, Xiang-Kun,et al."Prediction of an exotic state around 4240 MeV with J(PC)=1(-+) as the C-parity partner of Y(4260) in a molecular picture".PHYSICAL REVIEW D 101.7(2020):76003.