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Ablikim, M.; Yang, H. X.; Zhang, Z.P.; Hussain, T.; Yu, H. W.; Held, T.; Liu, C.L.; Varner, G.; Liu, F.H.; Gong, W. X.; Braun, S.; He, Z. Y.; Tang, X.; Malik, Q. A.; Zhao, Ling; Qiu, J. F.; Zhang, Z.Y.; Briere, R. A.; Wen, Q. G.; Liu, H.B.; Zhemchugov, A.; Goetzen, K.; Yu, J. S.; Olsen, S. L.; Hu, H. M.; Peters, K.; Tapan, I.; Xie, Y.; Wang, L.S.; Wang, Y.F.; Deng, Z. Y.; Çetin, S. A.; Zhang, J.W.; Wang, M.; Pacetti, S.; Zheng, B.; Chu, Y. P.; Zhao, Z.; Mao, Y.; Boyko, I. R.; Du, S. X.; Dai, H. L.; Destefanis, M.; Huang, G. M.; Cheng, H. P.; Liu, Fang; Wang, D.; Leyhe, M.; Guo, Y. P.; Zhao, Y. B.; Zhao, X.; Wang, P.L.; Ma, Tao; Zhang, Y.H.; Zhang, H.Y.; Liu, K.Y.; Zhang, C.C.; Fuks, O.; Huang, Y.; Ачасов, М. Н.; Lin, D. X.; Li, C.H.; Moriya, K.; Liu, K.; Wiedner, U.; Guan, Y. H.; Zhang, B.Y.; Hu, T.; Wang, X.F.; Huang, X. T.; Li, Z.B.; Jiao, Z.; Song, X. Y.; Li, J.C.; Ping, J. L.; Mitchell, R. E.; Rong, G.; Li, Lei; Sheng, H. Y.; Li, D.M.; Prencipe, E.; Zhu, Y.; Ning, Z.; Sun, Y. J.; Calcaterra, A.; Liu, Feng; Li, X.L.; Zhao, T. C.; Wu, N.; Fang, S. S.; Li, Zhou; Ma, F.C.; Uman, I.; Guo, A. Q.; Liu, B.J.; Sarantsev, A.; Wu, W.; Yuan, C. Z.; Xia, L.; Li, W.G.; Liu, Qin; Liu, H.H.; An, Q.; Denig, A.; Lange, J. S.; Dedovich, D. V.; Zhang, Lili; Huang, J. S.; Zallo, A.; Yu, C. X.; Wang, D.Y.; Zhao-yu, XU; Fu, C. D.; Çakır, O.; He, K. L.; Thorndike, E. H.; Zheng, J. P.; Zang, S. L.; Shao, M.; Zhu, Z. A.; Qi, M.; Liu, Z.A.; Kloss, B.; Wen, S. P.; Cao, G. F.; Bondarenko, O.; Xue, Z.; Albayrak, O.; Zhou, X. K.; Shen, X. Y.; Liu, Y.B.; Xu, G. F.; Qiao, C. F.; Chen, X.R.; Wang, Z.Y.; Gu, Y. T.; Chen, J.C.; Chen, S.J.; Li, H.B.; Wang, X.L.; Jiao, J. B.; Nefedov, Y.; Maas, F. E.; Ji, X. B.; Ye, M.; Fava, L.; An, F. F.; Lü, H. J.; Jiang, L. L.; Liao, X. T.; Ferroli, R. Baldini; Liu, Han; Zheng, Y.; Xia, Y.; Wang, Y.Q.; Liu, H.; Wu, L. H.; He, M.; Sun, Z. T.; Yu, B. X.; Qin, Z. H.; Fu, J.; Kalantar‐Nayestanaki, N.; Ding, Y.; Zhao, Gang; Wang, Z.; Cai, Xinxia; Sun, D. H.; Luo, C. L.; Ouyang, Q.; Zhu, Chenzheng; Shen, C. P.; Yan, L.; Spruck, B.; Peng, H.; Li, P.R.; Luo, M. X.; Redmer, C. F.; Zhu, Y.S.; Liu, Zhiqing; Liu, Q.; Pelizaeus, M.; Ji, Q.; Wang, Y.D.; Lu, Y. P.; Fang, J.; Ye, H.; Sun, Z. J.; Li, W.D.; Luo, X. L.; Liu, L.D.; Liu, Dong; Wei, J. B.; Zhong, B.; Poling, R.; Liu, S.B.; Min, J.; Zhou, Xiang; Gradl, W.; Min, T. J.; Liu, P.L.; Guo, L. B.; Zhao, Q.; Zou, B. S.; Li, Cui; Feng, C. Q.; Jiang, X. S.; Ji, X. L.; Loehner, H.; Muramatsu, H.; Li, G.; Tang, C. J.; Liu, C.X.; Ullrich, M.; Boger, E.; Maggiora, M.; Hou, Z. L.; Zhu, S. H.; Mao, Z. P.; Becker, J.; Yan, Y. H.; Li, X.R.; Chang, J. F.; Kavatsyuk, M.; Liu, H.M.; Chen, M.L.; Qian, S. J.; Shepherd, M. R.; Wang, Z.G.; Li, Cheng; Chen, Hu; Wang, B.; Chen, Y.B.; Harris, F. A.; Xu, X. P.; Zhang, X.J.; Wang, S.G.; Wang, K.; Ma, Xiaoyan; Sun, J. F.; Sun, Y. Z.; Geng, C.; Morales, C. Morales; Sun, S. S.; Bertani, M.; Zhang, C.; Bai, J. Z.; Ye, M.H.; Ma, Qiumei; Rashid, K. H.; Lou, X.; Wang, Q.J.; Jin, D. P.; Ban, Y.; Zhao, S. J.; Zhao, M. G.; Ma, H.L.; Zhu, K.; Bytev, V.; Zhao, J. W.; Bian, J. M.; Li, K.; Cronin-Hennessy, D.; Zeng, Y.; Wang, P.; Wei, D. H.; Gu, M. H.; Moeini, H.; Luo, T.; Messchendorp, J. G.; Ping, R. G.; Lu, G. R.; Chen, H.S.; Yu, Shiqi; Muchnoi, N. Yu.; Zhang, D.H.; Zou, J. H.; Greco, M.; Li, X.N.; Zhao, H. S.; Liang, Y. F.; Liao, G. R.; Weidenkaff, P.; Ruan, X. D.; Ji, C. S.; Wang, Zhi; Huang, G. S.; Li, X.Q.; Bennett, J. V.; Xu, Q. J.; Zhou, X. R.; Denysenko, I.; Zhang, S.H.; Gao, Y.; Kornicer, M.; Nikolaev, I. B.; Chen, G.; Guo, Tingting; Song, W. M.; Larin, P.; Huang, L. Q.; Liu, Zhao; Dong, M. Y.; Lv, M.; Lai, W.; Mo, X. H.; Kuehn, W.; Qin, X. S.; Hu, J.; Friedel, P.; Qin, Yao; Zhang, H.H.; Li, Q.J.; Toth, D.; Wang, L.L.; Yan, W. B.; Spataro, S.; Jing, F.; Park, J.W.; Zhang, R.; Zhang, X.Y.; Li, F.; Xiao, Z. J.; Liang, Y. T.; Zhang, B.X.; Dai, J. P.; Xu, Q. N.; Lü, J. G.; Werner, M.; Xiao-Fu, Lü; Liu, X.; Zafar, A. A.; Kopf, B.; Zhuang, J.; Wu, S. X.; Jin, S.; Lara, M.; Yuan, Y.; Xiu, Q. L.; Yang, Yifan; Zhang, Zhenghao; Chelkov, G. A.; Cai, H.; Ambrose, D.; Ding, W. M.; Liu, H.W.; Zhu, X.; Heng, Y. K.; Sun, G. X.; Liu, J.P.; Han, Y. L.; Ma, S.

doi:10.1103/physrevlett.112.132001

Cited by 294 publications

(173 citation statements)

References 28 publications

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“…Z c (3900) and Z c (3885). Since 2013, the BESIII Collaboration announced several charged charmonium-like states Z c (3900) [64], Z c (3885) [159], Z c (4020) [160] and Z c (4025) [161] at √ s = 4.26 GeV. All these structures were observed in the process Y(4260) → π − Z + c (as shown in Table 8).…”

Section: Charged Charmonium-like Z C Statesmentioning

confidence: 80%

“…No signal was observed and the upper limit of the branching fraction ratio B(Z 0 c → J/ψη)/B(Z 0 c → J/ψπ 0 ) was measured to be 0. 15 [161]. Almost at the same time, BESIII reported another charged charmoniumlike structure Z c (4020) in the π ± h c invariant mass distribution in the process of e + e − → Y(4260) → π − π + h c [160].…”

Section: Charged Charmonium-like Z C Statesmentioning

confidence: 85%

“…Let's cherish all the expected and embrace all the unexpected. Belle [63], BaBar [84] Belle [75], BaBar [90] Belle [76], BaBar [87] Belle [75], BaBar [86] CDF [67], D0 [68] LHCb [91], CMS [73] LHCb [92] BESIII [93] BaBar [62], CLEO [60], Belle [119] BaBar [123] CLEO [120] BESIII [64], Belle [124] BESIII [159] BESIII [160] BESIII [161] BESIII [93] Belle [172], Belle [177] P c (4380) + * 4380 ± 8 ± 29 [2] 205 ± 18 ± 86 [2] LHCb [2] …”

Section: Discussionmentioning

confidence: 99%

“…With the upgrade of BEPCII's LINAC in 2012, its center-of-mass energy reaches 4.6 GeV. One year later, the Z c (3900) [64] and the Z c (4020) were observed [161]. BESIII has collected lots of data samples ranging from 3.8 to 4.6 GeV, which is an ideal platform to study the charmonium-like physics.…”

Section: Future Facilitiesmentioning

confidence: 99%

See 3 more Smart Citations

The hidden-charm pentaquark and tetraquark states

et al. 2016

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In the past decade many charmonium-like states were observed experimentally. Especially those charged charmoniumlike Z c states and bottomonium-like Z b states can not be accommodated within the naive quark model. These charged Z c states are good candidates of either the hidden-charm tetraquark states or molecules composed of a pair of charmed mesons. Recently, the LHCb Collaboration discovered two hidden-charm pentaquark states, which are also beyond the quark model. In this work, we review the current experimental progress and investigate various theoretical interpretations of these candidates of the multiquark states. We list the puzzles and theoretical challenges of these models when confronted with the experimental data. We also discuss possible future measurements which may distinguish the theoretical schemes on the underlying structures of the hidden-charm multiquark states.

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Section: Charged Charmonium-like Z C Statesmentioning

confidence: 80%

Section: Charged Charmonium-like Z C Statesmentioning

confidence: 85%

Section: Discussionmentioning

confidence: 99%

Section: Future Facilitiesmentioning

confidence: 99%

See 2 more Smart Citations

The hidden-charm pentaquark and tetraquark states

et al. 2016

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“…A vast number of states which cannot be accommodated by the potential quark model were observed in experiment and served as good candidates for QCD exotics such as the charged charmonia Z c (3900) and Z c (4020/4025) at BESIII [2][3][4][5] and Z c (4430) at Belle [6] and LHCb [7]. While their nature has not been unambiguously determined, it appears obvious that the proximity of open charm thresholds, i.e.…”

Section: Introductionmentioning

confidence: 99%

Open charm contributions to the E1 transitions of $$\psi (3686)$$ ψ ( 3686 ) and $$\psi (3770)\rightarrow \gamma \chi _{cJ}$$ ψ ( 3770 ) → γ χ c J

Cao¹,

Cleven²,

Wang³

et al. 2016

Eur. Phys. J. C

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The E1 transitions of ψ(3686) and ψ(3770) → γ χ cJ are investigated in a non-relativistic effective field theory (NREFT) where the open charm effects are included systematically as the leading corrections. It also allows a selfconsistent inclusion of the S-D mixing in the same framework. We are able to show that the open charm contributions are essential for understanding the rather unexpected discrepancies between the non-relativistic leading order calculations and the experimental data for these two low-lying states.

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