Observation of a Charged Charmoniumlike Structure<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msub><mml:mi>Z</mml:mi><mml:mi>c</mml:mi></mml:msub><mml:mo stretchy="false">(</mml:mo><mml:mn>4020</mml:mn><mml:mo stretchy="false">)</mml:mo></mml:math>and Search for the<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msub><mml:mi>Z</mml:mi><mml:mi>c</mml:mi></mml:msub><mml:mo stretchy="false">(</mml:mo><mml:mn>3900</mml:mn><mml:mo stretchy="false"

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

doi:10.1103/physrevlett.111.242001

Cited by 431 publications

(232 citation statements)

References 28 publications

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“…The production cross section of Z c (3900) ± → π ± h c was found to be smaller than 11 pb at √ s = 4.26 GeV at 90% C.L. [160]. This upper limit was lower than the production cross section of Z c (3900) ± → π ± J/ψ obtained in Ref.…”

Section: Charged Charmonium-like Z C Statescontrasting

confidence: 54%

“…In general, the resonance parameters of the Z c (4020) agree with those of the Z c (4025) state within 1.5σ [160]. If the Z c (4025) and Z c (4020) are the same state, its quantum number are probably The Z c (3900) ± → h c π ± process was also included in the fit, which is shown as the inset in the right panel in Fig. 33 [160]. There was a weak signal of the Z c (3900) with a statistical significance of 2.1σ in this situation.…”

Section: Charged Charmonium-like Z C Statesmentioning

confidence: 72%

“…33, the mass of the Z c (4025) state is very close to that of the Z c (4020) while the Z c (4025) is much broader than the Z c (4020). In general, the resonance parameters of the Z c (4020) agree with those of the Z c (4025) state within 1.5σ [160]. If the Z c (4025) and Z c (4020) are the same state, its quantum number are probably The Z c (3900) ± → h c π ± process was also included in the fit, which is shown as the inset in the right panel in Fig. 33 [160].…”

Section: Charged Charmonium-like Z C Statesmentioning

confidence: 83%

“…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]. The masses and widths of the Z c (4025) and Z c (4020) resonances are collected in Table 8.…”

Section: Charged Charmonium-like Z C Statesmentioning

confidence: 93%

“…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: 96%

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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 Statescontrasting

confidence: 54%

Section: Charged Charmonium-like Z C Statesmentioning

confidence: 72%

Section: Charged Charmonium-like Z C Statesmentioning

confidence: 83%

Section: Charged Charmonium-like Z C Statesmentioning

confidence: 93%

Section: Charged Charmonium-like Z C Statesmentioning

confidence: 96%

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The hidden-charm pentaquark and tetraquark states

et al. 2016

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Atomic Origin of Interface‐Dependent Oxygen Migration by Electrochemical Gating at the LaAlO₃–SrTiO₃ Heterointerface

et al. 2020

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Electrical control of material properties based on ionic liquids (IL) has seen great development and emerging applications in the field of functional oxides, mainly understood by the electrostatic and electrochemical gating mechanisms. Compared to the fast, flexible, and reproducible electrostatic gating, electrochemical gating is less controllable owing to the complex behaviors of ion migration. Here, the interface‐dependent oxygen migration by electrochemical gating is resolved at the atomic scale in the LaAlO 3 –SrTiO 3 system through ex situ IL gating experiments and on‐site atomic‐resolution characterization. The difference between interface structures leads to the controllable electrochemical oxygen migration by filling oxygen vacancies. The findings not only provide an atomic‐scale insight into the origin of interface‐dependent electrochemical gating but also demonstrate an effective way of engineering interface structure to control the electrochemical gating.

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Recoupling mechanism for exotic mesons and baryons

Simonov

2021

J. High Energ. Phys.

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The infinite chain of transitions of one pair of mesons (channel I) into another pair of mesons (channel II) can produce bound states and resonances in both channels even if no interactions inside channels exist. These resonances which can occur also in meson-baryon channels are called channel-coupling (CC) resonances. A new mechanism of CC resonances is proposed where transitions occur due to a rearrangement of confining strings inside each channel — the recoupling mechanism. The amplitude of this recoupling mechanism is expressed via overlap integrals of the wave functions of participating mesons (baryons). The explicit calculation with the known wave functions yields the peak at E = 4.12 GeV for the transitions $$ J/\psi +\phi \leftrightarrow {D}_s^{\ast }+{\overline{D}}_s^{\ast } $$ J / ψ + ϕ ↔ D s ∗ + D ¯ s ∗ , which can be associated with χc1 (4140), and a narrow peak at 3.98 GeV with the width 10 MeV for the transitions $$ {D}_s^{-}+{D}_0^{\ast}\leftrightarrow J/\psi +{K}^{\ast -} $$ D s − + D 0 ∗ ↔ J / ψ + K ∗ − , which can be associated with th recently discovered Zcs (3985).

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Observation of a Charged Charmoniumlike StructureZc(4020)and Search for theZc(3900

Cited by 431 publications

References 28 publications

The hidden-charm pentaquark and tetraquark states

The hidden-charm pentaquark and tetraquark states

Atomic Origin of Interface‐Dependent Oxygen Migration by Electrochemical Gating at the LaAlO₃–SrTiO₃ Heterointerface

Recoupling mechanism for exotic mesons and baryons

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Observation of a Charged Charmoniumlike StructureZc(4020)and Search for theZc(3900

Cited by 431 publications

References 28 publications

The hidden-charm pentaquark and tetraquark states

The hidden-charm pentaquark and tetraquark states

Atomic Origin of Interface‐Dependent Oxygen Migration by Electrochemical Gating at the LaAlO3–SrTiO3 Heterointerface

Recoupling mechanism for exotic mesons and baryons

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Product

Resources

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Atomic Origin of Interface‐Dependent Oxygen Migration by Electrochemical Gating at the LaAlO₃–SrTiO₃ Heterointerface