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	Z(c)(3900) as a (d)over-bard* molecule from the pole counting rule
	Gong, Qin-Rong1,2; Guo, Zhi-Hui3,4,5; Meng, Ce6; Tang, Guang-Yi7; Wang, Yu-Fei1,2; Zheng, Han-Qing1,2,8
刊名	Physical review d
	2016-12-19
卷号	94期号:11页码:17
ISSN号	2470-0010
DOI	10.1103/physrevd.94.114019
通讯作者	Gong, qin-rong(1201110067@pku.edu.cn)
英文摘要	A comprehensive study on the nature of the zc(3900) resonant structure is carried out in this work. by constructing the pertinent effective lagrangians and considering the important final-state-interaction effects, we first give a unified description to all the relevant experimental data available, including the j/psi pi and pi invariant mass distributions from the e(+)e(-) -> j/psi pi process, the h(c)pi distribution from e(+)e(-) -> h(c)pi pi, and also the d (d) over bar* spectrum in the e(+)e(-) -> d (d) over bar*pi process. after fitting the unknown parameters to the previous data, we search the pole in the complex energy plane and find only one pole in the nearby energy region in different riemann sheets. therefore, we conclude that z(c)(3900) is of d (d) over bar* molecular nature, according to the pole counting rule method [nucl. phys. a543, 632 (1992); phys. rev. d 35, 1633 (1987)]. we emphasize that the conclusion based upon the pole counting method is not trivial, since both the d (d) over bar* contact interactions and the explicit z(c) exchanges are introduced in our analyses and
WOS关键词	TRIANGLE SINGULARITIES ; STATES ; CHARMONIUM ; PARTICLES ; MODEL ; MASS ; QCD
WOS研究方向	Astronomy & Astrophysics ; Physics
WOS类目	Astronomy & Astrophysics ; Physics, Particles & Fields
语种	英语
出版者	AMER PHYSICAL SOC
WOS记录号	WOS:000398727000007
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2176670
专题	高能物理研究所
通讯作者	Gong, Qin-Rong
作者单位	1.Peking Univ, Dept Phys, Beijing 100871, Peoples R China 2.Peking Univ, State Key Lab Nucl Phys & Technol, Beijing 100871, Peoples R China 3.Hebei Normal Univ, Dept Phys, Shijiazhuang 050024, Peoples R China 4.Univ Bonn, Helmholtz Inst Strahlen & Kernphys, D-53115 Bonn, Germany 5.Univ Bonn, Bethe Ctr Theoret Phys, D-53115 Bonn, Germany 6.Peking Univ, Dept Phys, Beijing 100871, Peoples R China 7.Inst High Energy Phys, Beijing 100049, Peoples R China 8.Collaborat Innovat Ctr Quantum Matter, Beijing 100871, Peoples R China
推荐引用方式 GB/T 7714	Gong, Qin-Rong,Guo, Zhi-Hui,Meng, Ce,et al. Z(c)(3900) as a (d)over-bard* molecule from the pole counting rule[J]. Physical review d,2016,94(11):17.
APA	Gong, Qin-Rong,Guo, Zhi-Hui,Meng, Ce,Tang, Guang-Yi,Wang, Yu-Fei,&Zheng, Han-Qing.(2016).Z(c)(3900) as a (d)over-bard* molecule from the pole counting rule.Physical review d,94(11),17.
MLA	Gong, Qin-Rong,et al."Z(c)(3900) as a (d)over-bard* molecule from the pole counting rule".Physical review d 94.11(2016):17.

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