Study of<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msup><mml:mi>e</mml:mi><mml:mo mathvariant="bold">+</mml:mo></mml:msup><mml:msup><mml:mi>e</mml:mi><mml:mo mathvariant="bold">−</mml:mo></mml:msup><mml:mo>→</mml:mo><mml:msup><mml:mi>π</mml:mi><mml:mo mathvariant="bold">+</mml:mo></mml:msup><mml:msup><mml:mi>π</mml:mi><mml:mo mathvariant="bold">−</mml:mo></mml:msup><mml:mi>J</mml:mi><mml:mo>/</mml:mo><mml:mi>ψ</mml:mi></mml:math>and Observation of a Charged Charmoniumlik

Liu, Z. Q.; Shen, C. P.; Yuan, C. Z.; Adachi, I.; Aihara, H.; Asner, D. M.; Aulchenko, V.; Aushev, T.; Aziz, T.; Bakich, A. M.; Bala, A.; Belous, K.; Bhardwaj, V.; Bhuyan, B.; Bischofberger, M.; Bondar, A.; Bonvicini, G.; Bożek, A.; Bračko, M.; Brodzicka, J.; Browder, T. E.; Chang, P.; Chekelian, V.; Chen, A.; Chen, P.; Cheon, B. G.; Chistov, R.; Cho, K.; Chobanova, V.; Choi, S. K.; Choi, Y.; Cinabro, D.; Dalseno, J.; Danilov, M.; Doležal, Z.; Drásal, Z.; Drutskoy, A.; Dutta, D.; Dutta, K.; Eidelman, S.; Epifanov, D.; Farhat, H.; Fast, J. E.; Feindt, M.; Ferber, T.; Frey, A.; Gaur, V.; Gabyshev, N.; Ganguly, S.; Gillard, R.; Goh, Y. M.; Golob, B.; Haba, J.; Hayasaka, K.; Hayashii, H.; Horii, Y.; Hoshi, Y.; Hou, W.-S.; Hsiung, Y.; Hyun, H. J.; Iijima, T.; Inami, K.; Ishikawa, A.; Itoh, R.; Iwasaki, Y.; Joffe, D.; Julius, T.; Kah, D. H.; Kang, J. H.; Kawasaki, T.; Kiesling, C.; Kim, H. J.; Kim, J. B.; Kim, J. H.; Kim, K. T.; Kim, M. J.; Kim, Y. J.; Kinoshita, K.; Klucar, J.; Ko, B. R.; Kodyš, P.; Korpar, S.; Križan, P.; Krokovny, P.; Kuhr, T.; Kwon, Y. J.; Lange, J. S.; Lee, Soohyung; Li, J.; Li, Y.; Libby, J.; Liu, C.; Lukin, P.; Matvienko, D.; Miyabayashi, K.; Miyata, H.; Mizuk, R.; Mohanty, G. B.; Moll, A.; Mussa, R.; Nakano, E.; Nakao, M.; Nakazawa, H.; Natkaniec, Z.; Nayak, M.; Nedelkovska, E.; Nisar, N. K.; Nishida, S.; Nitoh, O.; Ogawa, S.; Okuno, S.; Olsen, S. L.; Onuki, Y.; Ostrowicz, W.; Oswald, C.; Pakhlov, P.; Pakhlova, G.; Park, H.; Park, H. K.; Pedlar, T. K.; Pestotnik, R.; Petrič, M.; Piilonen, L. E.; Ritter, M.; Röhrken, M.; Rostomyan, A.; Sahoo, H.; Saito, T.; Sakai, Y.; Sandilya, S.; Santel, D.; Sanuki, T.; Sato, Y.; Savinov, V.; Schneider, O.; Schnell, G.; Schwanda, C.; Seidl, R.; Semmler, D.; Senyo, K.; Seon, O.; Sevior, M. E.; Shapkin, M.; Shibata, T. A.; Shiu, J. G.; Shwartz, B.; Sibidanov, A.; Simon, F.; Smerkol, P.; Sohn, Y. S.; Sokolov, A.; Solovieva, E.; Starič, M.; Steder, M.; Sumihama, M.; Sumiyoshi, T.; Tamponi, U.; Tanida, K.; Tatishvili, G.; Teramoto, Y.; Trabelsi, K.; Tsuboyama, T.; Uchida, M.; Uehara, S.; Uglov, T.; Unno, Y.; Uno, S.; Vahsen, S.; Hulse, C. Van; Vanhoefer, P.; Varner, G.; Varvell, K. E.; Vorobyev, V.; Wagner, M. N.; Wang, C. H.; Wang, M. Z.; Wang, P.; Wang, X. L.; Watanabe, M.; Watanabe, Y.; Won, E.; Yabsley, B.; Yamaoka, J.; Yamashita, Y.; Yashchenko, S.; Yook, Y.; Yusa, Y.; Zhang, C. C.; Zhang, Z. P.; Zhilich, V.; Zupanc, A.

doi:10.1103/physrevlett.110.252002

Cited by 676 publications

(416 citation statements)

References 27 publications

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“…Thus, the intermediate f 0 (980) contribution to Y(4260) → π + π − J/ψ is not dominant [123]. Besides Y(4260) → J/ψ f 0 (980) → J/ψπ + π − , the Y(4260) → Z c (3900) ± π ∓ → J/ψπ + π − mode was also seen [64,124], where the charged charmonium-like structure Z c (3900) was observed in the corresponding J/ψπ ± invariant mass spectrum, which we will discuss in detail later.…”

mentioning

confidence: 87%

“…30, the mass peak of the Z c (3900) in this channel lies about 23 MeV above the open-charm threshold D +D * 0 (or D * +D0 ). In the same production channel, Belle also reported the Z c (3900) structure [124]. Meanwhile, Xiao et al analyzed the decay ψ(4160) → J/ψπ + π − and observed the charged Z c (3900) [61].…”

Section: Charged Charmonium-like Z C Statesmentioning

confidence: 99%

“…Later, based on the new measurement of e + e − → π + π − J/ψ with a 967 fb −1 data sample, Belle confirmed that there exists an event cluster around 4.08 GeV [124]. The inconsistency between BaBar [123] and Belle [119,124] results of the Y(4008) should be clarified in future experiments. In Fig.…”

Section: Its Open Charm Decay Modesmentioning

confidence: 99%

“…All these structures were observed in the process Y(4260) → π − Z + c (as shown in Table 8). The Z c (3900) state was also observed by Belle [124] and confirmed later using data of CLEO-c [61]. Before we discuss these charged charmonium-like states, we collect the experimental information of these states in Table 8, including their masses, widths, production processes from different experiments.…”

Section: Charged Charmonium-like Z C Statesmentioning

confidence: 99%

“…Belle [124] 4258.6 ± 8. Besides the Y(4260), the Belle Collaboration indicated that there may exist another very broad structure Y(4008) around 4.05 GeV in the measured π + π − J/ψ mass spectrum [119].…”

Section: Its Open Charm Decay Modesmentioning

confidence: 99%

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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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mentioning

confidence: 87%

Section: Charged Charmonium-like Z C Statesmentioning

confidence: 99%

Section: Its Open Charm Decay Modesmentioning

confidence: 99%

Section: Charged Charmonium-like Z C Statesmentioning

confidence: 99%

Section: Its Open Charm Decay Modesmentioning

confidence: 99%

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The hidden-charm pentaquark and tetraquark states

et al. 2016

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FAIR – Cosmic matter in the laboratory

Stoecker

Sturm

2014

Astron Nachr

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To explore cosmic matter in the laboratory -this fascinating research prospect becomes available in 2018 at the Facility for Antiproton and Ion Research, FAIR. The new facility is being constructed within the next five years adjacent to the existing accelerator complex of the GSI Helmholtz Centre for Heavy Ion Research at Darmstadt/Germany, expanding the research goals and technical possibilities substantially. This includes new insights into the dynamics of supernovae depending on the properties of short-lived neutron-rich nuclei which will be investigated with intense rare isotope beams. New insights will be provided into the interior of stars by exploring dense plasmas with intense heavy-ion beams combined with a high-performance laser -or into neutron star cores by probing the highest baryon densities in relativistic nucleusnucleus collisions at unprecedented collision rates. To the latter, the properties of hadrons play an important part which will be systematically studied by high precision hadron spectroscopy with antiproton beams at unmatched intensities. The worldwide unique accelerator and experimental facilities of FAIR will open the way for a broad spectrum of unprecedented fore-front research supplying a large variety of experiments in hadron, nuclear, atomic and plasma physics as well as biomedical and material science which will be briefly described in this article.

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Quarks im Tetrapack

Wiedner

2018

Physik in unserer Zeit

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Zusammenfassung Die starke Wechselwirkung im niederenergetischen Bereich, die sich in der Formation von gebundenen Teilchen darstellt, ist um neue Facetten reicher geworden. Experimente haben Evidenz für Teilchen aus Vier‐ und Fünf‐Quarkzuständen gefunden, die aufgrund ihrer ungewöhnlichen Eigenschaften nicht in das etablierte Baryonen‐ oder Mesonenschema passen. Ihre detaillierte Untersuchung wird unser Wissen über Hadronen, die aus Quarks und Gluonen aufgebaut sind, und deren Wechselwirkung um neue Kapitel erweitern.

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Study ofe+e−→π+π−J/ψand Observation of a Charged Charmoniumlik

Cited by 676 publications

References 27 publications

The hidden-charm pentaquark and tetraquark states

The hidden-charm pentaquark and tetraquark states

FAIR – Cosmic matter in the laboratory

Quarks im Tetrapack

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