Evidence for<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>X</mml:mi><mml:mo stretchy="false">(</mml:mo><mml:mn>3872</mml:mn><mml:mo stretchy="false">)</mml:mo><mml:mo>→</mml:mo><mml:mi>ψ</mml:mi><mml:mo stretchy="false">(</mml:mo><mml:mn>2</mml:mn><mml:mi>S</mml:mi><mml:mo stretchy="false">)</mml:mo><mml:mi>γ</mml:mi></mml:math>in<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msup><mml:mi>B</mml:mi><mml:mo>±</mml:mo></mml:msup><mml:mo>→</m

Aubert, B.; Bóna, M.; Karyotakis, Y.; Lees, J. P.; Poireau, V.; Prencipe, E.; Prudent, X.; Tisserand, V.; Ticó, J. Garra; Graugés, E.; Lopez, L.; Palano, A.; Pappagallo, M.; Eigen, G.; Stugu, B.; Sun, L.; Abrams, G. S.; Battaglia, M.; Brown, D. N.; Cahn, R. N.; Jacobsen, R. G.; Kerth, L. T.; Kolomensky, Yu. G.; Lynch, G.; Osipenkov, I.; Ronan, M. T.; Tackmann, K.; Tanabe, T.; Hawkes, C. M.; Soni, N.; Watson, A. T.; Koch, H.; Schroeder, T. Vazquez; Walker, D.; Asgeirsson, D. J.; Fulsom, B. G.; Hearty, C.; Mattison, T. S.; McKenna, J. A.; Barrett, M.; Khan, A.; Blinov, V. E.; Bukin, A. D.; Buzykaev, A. R.; Druzhinin, V. P.; Golubev, V. B.; Onuchin, A. P.; Serednyakov, S. I.; Skovpen, Yu. I.; Solodov, E. P.; Todyshev, K. Yu; Bondioli, M.; Curry, S.; Eschrich, I.; Kirkby, D.; Lankford, A. J.; Lund, P.; Mandelkern, M.; Martin, E. C.; Stoker, D. P.; Abachi, S.; Buchanan, C.; Gary, J. W.; Liu, F.; Long, O. R.; Shen, B. C.; Vitug, G. M.; Yasin, Z.; Zhang, L.; Sharma, V.; Campagnari, C.; Hong, T. M.; Kovalskyi, D.; Mazur, M. A.; Richman, J.; Beck, T. W.; Eisner, A. M.; Flacco, C. J.; Heusch, C.A.; Kroseberg, J.; Lockman, W. S.; Martínez, A. J.; Schalk, T.; Schumm, B. A.; Seiden, A.; Wilson, M. G.; Winstrom, L.; Cheng, C. H.; Doll, D. A.; Echenard, B.; Fang, F.; Hitlin, D. G.; Narsky, I.; Piatenko, T.; Porter, F. C.; Andreassen, R.; Mancinelli, G.; Meadows, B.; Mishra, K.; Sokoloff, M. D.; Bloom, P. C.; Ford, W. T.; Gaz, A.; Hirschauer, J. F.; Nagel, M.; Nauenberg, U.; Smith, J. G.; Ulmer, K. A.; Wagner, S. R.; Ayad, R.; Soffer, A.; Toki, W. H.; Wilson, R. J.; Altenburg, D. D.; Feltresi, E.; Hauke, A.; Jasper, H.; Karbach, M.; Merkel, J.; Petzold, A.; Spaan, B.; Wacker, K.; Kobel, M.; Mader, W. F.; Nogowski, R.; Schubert, K. R.; Schwierz, R.; Volk, A.; Bernard, D.; Bonneaud, G. R.; Latour, E.; Verderi, M.; Clark, P. J.; Playfer, S.; Watson, J. E.; Andreotti, M.; Bettoni, D.; Bozzi, C.; Calabrese, R.; Cecchi, A.; Cibinetto, G.; Franchini, P.; Luppi, E.; Negrini, M.; Petrella, A.; Piemontese, L.; Santoro, V.; Baldini-Ferroli, R.; Calcaterra, A.; Sangro, R. de; Finocchiaro, G.; Pacetti, S.; Patterí, P.; Peruzzi, I. M.; Piccolo, M.; Rama, M.; Zallo, A.; Buzzo, A.; Contri, R.; Vetere, M. Lo; Macrı́, M.; Monge, M. R.; Passaggio, S.; Patrignani, C.; Robutti, E.; Santroni, A.; Tosi, S.; Chaisanguanthum, K. S.; Morii, M.; Adametz, A.; Marks, J.; Schenk, S.; Uwer, U.; Klose, V.; Lacker, H. M.; Bard, D. J.; Dauncey, P.; Nash, J.; Tibbetts, M. J.; Behera, P. K.; Chai, X.; Charles, M.; Mallik, U.; Cochran, J.; Crawley, H. B.; Liu, Dong; Meyer, W. T.; Prell, S.; Rosenberg, E. I.; Rubin, A. E.; Gao, Y. Y.; Gritsan, A. V.; Guo, Z. J.; Lae, C. K.; Arnaud, N.; Béquilleux, J.; DʼOrazio, A.; Davier, M.; Costa, J. Firmino da; Grosdidier, G.; Höcker, A.; Lepeltier, V.; Diberder, F. Le; Lutz, A. M.; Pruvot, S.; Roudeau, P.; Schune, M. H.; Serrano, J.; Sordini, V.; Stocchi, A.; Wormser, G.; Lange, D. J.; Wright, D.; Bingham, I.; Burke, J. P.; Chavez, C. A.; Fry, J. R.; Gabathuler, E.; Gamet, R.; Hutchcroft, D.; Payne, D. J.; Touramanis, C.; Bevan, A. J.; Clarke, Christopher; George, K. A.; Lodovico, F. Di; Sacco, R.; Sigamani, M.; Cowan, G. A.; Flaecher, H. U.; Hopkins, D. A.; Paramesvaran, S.; Salvatore, F.; Wren, A. C.; Davis, C. L.; Denig, A.; Fritsch, M.; Gradl, W.; Schott, G.; Alwyn, K. E.; Bailey, D.; Barlow, R. J.; Chia, Y. M.; Edgar, C. L.; Jackson, G.; Lafferty, G. D.; West, T. J.; Jiang, Y.; Anderson, J.; Chen, C.; Jawahery, A.; Roberts, D. A.; Simi, G.; Tuggle, J. M.; Dallapiccola, C.; Li, X.; Salvati, E.; Saremi, S.; Cowan, R.; Dujmić, D.; Fisher, P. H.; Sciolla, G.; Spitznagel, M.; Taylor, F.; Yamamoto, R. K.; Zhao, M. G.; Patel, P. M.; Robertson, S. H.; Lazzaro, A.; Lombardo, V.; Palombo, F.; Bauer, J. M.; Cremaldi, L.; Godang, R.; Kroeger, R.; Sanders, D. A.; Summers, D. J.; Zhao, H. W.; Simard, M.; Taras, P.; Viaud, F. B.; Nicholson, H.; Nardo, G. De; Lista, L.; Monorchio, D.; Onorato, G.; Sciacca, C.; Raven, G.; Snoek, H. L.; Jessop, C.; Knoepfel, K. J.; Secco, J. M. lo; Wang, W. F.; Benelli, G.; Corwin, L. A.; Honscheid, K.; Kagan, H.; Kass, R.; Morris, J. P.; Rahimi, A. M.; Regensburger, J. J.; Sekula, S. J.; Wong, Q. K.; Blount, N. L.; Brau, J.; Frey, R.; Igonkina, O.; Kolb, J.; Meng, L.; Rahmat, R.; Sinev, N. B.; Strom, D.; Strube, J.; Torrence, E.; Castelli, G.; Gagliardi, N.; Margoni, M.; Morandin, M.; Posocco, M.; Rotondo, M.; Simonetto, F.; Stroili, R.; Voci, C.; Sanchez, P. del Amo; Ben-Haim, E.; Briand, H.; Calderini, G.; Chauveau, J.; David, P.; Buono, L. Del; Hamon, O.; Leruste, Ph; Ocariz, J.; Pérez, A.; Prendki, J.; Sitt, S.; Gladney, L.; Biasini, M.; Covarelli, R.; Manoni, E.; Angelini, C.; Batignani, G.; Bettarini, S.; Carpinelli, M.; Cervelli, A.; Forti, F.; Giorgi, M. A.; Lusiani, A.; Marchiori, G.; Morganti, M.; Neri, N.; Paoloni, E.; Rizzo, G.; Walsh, J.; Pegna, D. Lopes; Lü, C.; Olsen, J.; Smith, A. J. S.; Telnov, A. V.; Anulli, F.; Baracchini, E.; Cavoto, G.; Re, D. Del; Marco, E. Di; Faccini, R.; Ferrarotto, F.; Ferroni, F.; Gaspero, M.; Jackson, P. D.; Gioi, L. Li; Mazzoni, M. A.; Morganti, S.; Piredda, G.; Polci, F.; Renga, F.; Voena, C.; Ebert, M.; Hartmann, T.; Schröder, H.; Waldi, R.; Adye, T.; Franek, B.; Olaiya, E. O.; Wilson, F. F.; Emery, S.; Escalier, M.; Estève, L.; Ganzhur, S. F.; Monchenault, G. Hamel de; Kozanecki, W.; Vasseur, G.; Yèche, Ch; Zito, M.; Chen, X. R.; Liu, H.; Park, W.; Purohit, M.; White, R. M.; Wilson, J. R.; Allen, M. T.; Aston, D.; Bartoldus, R.; Bechtle, P.; Benitez, J. F.; Cenci, R.; Coleman, J. P.; Convery, M. R.; Dingfelder, J.; Dorfan, J.; Dubois-Felsmann, G. P.; Dunwoodie, W.; Field, R. C.; Gabareen, A. M.; Gowdy, S. J.; Graham, M. T.; Grenier, P.; Hast, C.; Innes, W. R.; Kamiński, J.; Kelsey, M.; Kim, H.; Kim, P.; Kocian, M.; Leith, D. W. G. S.; Li, S.; Lindquist, B.; Luitz, S.; Lüth, V.; Lynch, H. L.; MacFarlane, D. B.; Marsiske, H.; Messner, R.; Muller, D. R.; Neal, H.; Nelson, S.; O’Grady, C. P.; Ofte, I.; Perazzo, A.; Perl, M.; Ratcliff, B. N.; Roodman, A.; Salnikov, A. A.; Schindler, R. H.; Schwiening, J.; Snyder, A.; Su, D.; Sullivan, M. K.; Suzuki, K.; Swain, S. K.; Thompson, J. M.; Va’vra, J.; Wagner, A. P.; Weaver, M.; West, C.; Wisniewski, W. J.; Wittgen, M.; Wright, D.; Wulsin, H. W.; Yarritu, A. K.; Yi, K.; Young, C. C.; Ziegler, V.; Burchat, P. R.; Edwards, A. J.; Majewski, S.; Miyashita, T. S.; Petersen, B. A.; Wilden, L.; Ahmed, S.; Alam, M. S.; Ernst, J.; Pan, B.; Saeed, M. A.; Zain, S. B.; Spanier, S.; Wogsland, B. J.; Eckmann, R.; Ritchie, J. L.; Ruland, A. M.; Schilling, C. J.; Schwitters, R. F.; Drummond, B. W.; Izen, J. M.; Lou, X.; Bianchi, F.; Gamba, D.; Peliccioni, M.; Bomben, M.; Bosisio, L.; Cartaro, C.; Ricca, G. Della; Lanceri, L.; Vitale, L.; Azzolini, V.; López-March, N.; Martínez-Vidal, F.; Milanés, D. A.; Oyanguren, A.; Albert, J.; Banerjee, S.; Bhuyan, B.; Choi, H. H. F.; Hamano, K.; Kowalewski, R.; Lewczuk, M. J.; Nugent, I. M.; Roney, J. M.; Sobie, R. J.; Gershon, T.; Harrison, P. F.; Ilić, J.; Latham, T.; Mohanty, G. B.; Band, H. R.; Chen, X.; Dasu, S.; Flood, K. T.; Pan, Y.; Pierini, M.; Prepost, R.; Vuosalo, C.; Wu, S. L.

doi:10.1103/physrevlett.102.132001

Cited by 185 publications

(93 citation statements)

References 29 publications

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“…[689], Guo et al studied the radiative decays of the X(3872) into γJ/ψ and γψ using an effective field theory. Their results also suggested that their experimental ratio [89,92] is not in conflict with the hadronic molecular picture that the X(3872) is dominated by the DD * component.…”

Section: Lattice Qcdmentioning

confidence: 68%

“…Under this molecule picture, Swanson calculated the ratio of B(X(3872) → ψ γ) with respect to B(X(3872) → J/ψγ) to be 4 × 10 −3 [197,219], which largely deviated from the experimental data 3.4 ± 1.4 [89] and 2.46 ± 0.64 ± 0.29 [92]. He derived the ratio of B(X(3872) → γJ/ψ) with respect to B(X(3872) → J/ψπ + π − ) to be around 10 −2 [197,219], while the experimental value is 0.14 ± 0.05 [75] and 0.33 ± 0.12 [89]. Within this model, the ratio of B(X(3872) → D 0D0 π 0 ) with respect to B(X(3872) → J/ψπ + π − ) was inconsistent with experimental data.…”

Section: Molecular Schemementioning

confidence: 69%

“…The ratio of B(X(3872) → γJ/ψ) with respect to B(X(3872) → J/ψπ + π − ) was measured to be 0.14±0.05 [75] and 0.33 ± 0.12 [89]. This ratio also encodes important information on the underlying structure of the X(3872), which was reexamined using a phenomenological Lagrangian approach in Refs.…”

Section: Lattice Qcdmentioning

confidence: 99%

“…However, both the BaBar and LHCb experiments observed this decay mode, and this branching fraction was measured to be (3.4 ± 1.4) [89] and (2.46 ± 0.64 ± 0.29) [92], respectively.…”

Section: The Charmonium-like Xyz Statesmentioning

confidence: 99%

“…The ratio of B(X(3872) → ψ γ) to B(X(3872) → J/ψγ) was measured to be 3.4 ± 1.4 [89] and 2.46 ± 0.64 ± 0.29 [92]. Under the molecule picture, several groups studied the above ratio [688,689].…”

Section: Lattice Qcdmentioning

confidence: 99%

See 4 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.

show abstract

Section: Lattice Qcdmentioning

confidence: 68%

Section: Molecular Schemementioning

confidence: 69%

Section: Lattice Qcdmentioning

confidence: 99%

“…However, both the BaBar and LHCb experiments observed this decay mode, and this branching fraction was measured to be (3.4 ± 1.4) [89] and (2.46 ± 0.64 ± 0.29) [92], respectively.…”

Section: The Charmonium-like Xyz Statesmentioning

confidence: 99%

Section: Lattice Qcdmentioning

confidence: 99%

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The hidden-charm pentaquark and tetraquark states

et al. 2016

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Measurements of the X c and X b Quarkonium States in pp Collisions with the ATLAS Experiment

Chisholm¹

2016

Springer Theses

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The χ b bottomonium states are observed through the reconstruction of the radiative decays χ b (nP ) → Υ(1S)γ using 4.4 fb −1 of pp collision data collected at √ s = 7 TeV with the ATLAS experiment. The production of the χ b (1P ) and χ b (2P ) bottomonium states is observed in addition to a candidate for a new bottomonium state, consistent with theoretical expectations for the χ b (3P ) states. The production-averaged mass barycentre for the χ b (3P ) candidate is measured to be 10541 ± 11 (stat.) ± 30 (syst.) MeV. The consequences of this discovery for our understanding of bottomonium production phenomenology in hadronic collisions is reviewed.The production of the χ c1 and χ c2 charmonium states has been measured in √ s = 7 TeV pp collisions with the ATLAS experiment using a data sample representing an integrated luminosity of 4.5 fb −1 . The prompt and non-prompt production cross sections for the χ c1 and χ c2 states are measured within the region |y J/ψ | < 0.75.These measurements suggest that 24-28% of prompt J/ψ are produced in feeddown from radiative χ c1 and χ c2 decays. The production of the χ c2 state, relative to the χ c1 state, is measured for both prompt and non-prompt production processes.This collection of measurements is compared to a number of theoretical predictions for χ cJ production at the LHC. The branching fraction B(B ± → χ c1 K ± ) = (4.9 ± 0.9 (stat.) ± 0.6 (syst.)) × 10 −4 is also measured with the same dataset and χ c event selection. DECLARATION OF AUTHOR'S CONTRIBUTION

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Heavy quarkonium: progress, puzzles, and opportunities

Brambilla¹,

Eidelman²,

Heltsley³

et al. 2011

Advances in the Physics of Particles and Nuclei

Self Cite

103

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A golden age for heavy quarkonium physics dawned a decade ago, initiated by the confluence of exciting advances in quantum chromodynamics (QCD) and an explosion of related experimental activity. The early years of this period were chronicled in the Quarkonium Working Group (QWG) CERN Yellow Report (YR) in 2004, which presented a comprehensive review of the status of the field at that time and provided specific recommendations for further progress. However, the broad spectrum of subsequent breakthroughs, surprises, and continuing puzzles could only be partially anticipated. Since the release of the YR, the BESII program concluded only to give birth to BESIII; the B-factories and CLEO-c flourished; quarkonium production and polarization measurements at HERA and the Tevatron matured; and heavy-ion collisions at RHIC have opened a window on the deconfinement regime. All these experiments leave legacies of quality, precision, and unsolved mysteries for quarkonium physics, and therefore beg for continuing investigations at BESIII, the LHC, RHIC, FAIR, the Super Flavor and/or Tau-Charm factories, JLab, the ILC, and beyond. The list of newly-found conventional states expanded to include hc(1P ), χc2(2P ), B + c , and η b (1S). In addition, the unexpected and still-fascinating X(3872) has been joined by * Editors † Section coordinators ‡ Corresponding author: bkh2@cornell.edu more than a dozen other charmonium-and bottomonium-like "XY Z" states that appear to lie outside the quark model. Many of these still need experimental confirmation. The plethora of new states unleashed a flood of theoretical investigations into new forms of matter such as quark-gluon hybrids, mesonic molecules, and tetraquarks. Measurements of the spectroscopy, decays, production, and in-medium behavior of cc, bb, and bc bound states have been shown to validate some theoretical approaches to QCD and highlight lack of quantitative success for others. Lattice QCD has grown from a tool with computational possibilities to an industrialstrength effort now dependent more on insight and innovation than pure computational power. New effective field theories for the description of quarkonium in different regimes have been developed and brought to a high degree of sophistication, thus enabling precise and solid theoretical predictions. Many expected decays and transitions have either been measured with precision or for the first time, but the confusing patterns of decays, both above and below open-flavor thresholds, endure and have deepened. The intriguing details of quarkonium suppression in heavy-ion collisions that have emerged from RHIC have elevated the importance of separating hotand cold-nuclear-matter effects in quark-gluon plasma studies. This review systematically addresses all these matters and concludes by prioritizing directions for ongoing and future efforts.

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Evidence forX(3872)→ψ(2S)γinB±→

Cited by 185 publications

References 29 publications

The hidden-charm pentaquark and tetraquark states

The hidden-charm pentaquark and tetraquark states

Measurements of the X c and X b Quarkonium States in pp Collisions with the ATLAS Experiment

Heavy quarkonium: progress, puzzles, and opportunities

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