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Aaij, R, Abdelmotteleb, ASW, Beteta, C Abellan, Gallego, FJ Abudinen, Ackernley, T, Adeva, B, Adinolfi, M, Afsharnia, H, Agapopoulou, C, Aidala, CA et al (show 995 more authors) , Aiola, S, Ajaltouni, Z, Akar, S, Albrecht, J, Alessio, F, Alexander, M, Alfonso Albero, A, Aliouche, Z, Alkhazov, G, Cartelle, P Alvarez, Amato, S, Amey, JL, Amhis, Y, An, L, Anderlini, L, Andreianov, A, Andreotti, M, Archilli, F, Artamonov, A, Artuso, M, Arzymatov, K, Aslanides, E, Atzeni, M, Audurier, B, Bachmann, S, Bachmayer, M, Back, JJ, Baladron Rodriguez, P, Balagura, V, Baldini, W, Leite, J Baptista, Barbetti, M, Barlow, RJ, Barsuk, S, Barter, W, Bartolini, M, Baryshnikov, F, Basels, JM, Bashir, S, Bassi, G, Batsukh, B, Battig, A, Bay, A, Beck, A, Becker, M, Bedeschi, F, Bediaga, I, Beiter, A, Belavin, V, Belin, S, Bellee, V, Belous, K, Belov, I, Bencivenni, G, Ben-Haim, E, Berezhnoy, A, Bernet, R, Berninghoff, D, Bernstein, HC, Bertella, C, Bertolin, A, Betancourt, C, Betti, F, Bezshyiko, Ia, Bhasin, S, Bhom, J, Bian, L, Bieker, MS, Bifani, S, Billoir, P, Birch, M, Bishop, FCR, Bitadze, A, Bizzeti, A, Bjorn, M, Blago, MP, Blake, T, Blanc, F, Blusk, S, Bobulska, D, Boelhauve, JA, Boente Garcia, O, Boettcher, T, Boldyrev, A, Bondar, A, Bondar, N, Borghi, S, Borisyak, M, Borsato, M, Borsuk, JT, Bouchiba, SA, Bowcock, TJV, Boyer, A, Bozzi, C, Bradley, MJ, Braun, S, Brea Rodriguez, A, Brodzicka, J, Gonzalo, A Brossa, Brundu, D, Buonaura, A, Buonincontri, L, Burke, AT, Burr, C, Bursche, A, Butkevich, A, Butter, JS, Buytaert, J, Byczynski, W, Cadeddu, S, Cai, H, Calabrese, R, Calefice, L, Diaz, L Calero, Cali, S, Calladine, R, Calvi, M, Calvo Gomez, M, Magalhaes, P Camargo, Campana, P, Quezada, AF Compoverde, Capelli, S, Capriotti, L, Carbone, A, Carboni, G, Cardinale, R, Cardini, A, Carli, I, Carniti, P, Carus, L, Akiba, K Carvalho, Casais Vidal, A, Casse, G 
ORCID: 0000-0002-8516-237X, Cattaneo, M, Cavallero, G, Celani, S, Cerasoli, J, Cervenkov, D, Chadwick, AJ, Chapman, MG, Charles, M, Charpentier, Ph, Chatzikonstantinidis, G, Barajas, CA Chavez, Chefdeville, M, Chen, C, Chen, S, Chernov, A, Chobanova, V, Cholak, S, Chrzaszcz, M, Chubykin, A, Chulikov, V, Ciambrone, P, Cicala, MF, Cid Vidal, X, Ciezarek, G, Clarke, PEL, Clemencic, M, Cliff, HV, Closier, J, Cobbledick, JL, Coco, V, Coelho, JAB, Cogan, J, Cogneras, E, Cojocariu, L, Collins, P, Colombo, T, Congedo, L, Contu, A, Cooke, N, Coombs, G, Corredoira, I, Corti, G, Sobral, CM Costa, Couturier, B, Craik, DC, Crkovska, J, Torres, M Cruz, Currie, R, Da Silva, CL, Dadabaev, S, Dai, L, Dall'Occo, E, Dalseno, J, D'Ambrosio, C, Danilina, A, D'Argent, P, Davies, JE, Davis, A, Francisco, O De Aguiar, De Bruyn, K, De Capua, S, De Cian, M, De Miranda, JM, De Paula, L, De Serio, M, De Simone, D, De Simone, P, De Vellis, F, De Vries, JA, Dean, CT, Debernardis, F, Decamp, D, Dedu, V, Del Buono, L, Delaney, B, Dembinski, H-P, Dendek, A, Denysenko, V, Derkach, D, Deschamps, O, Desse, F, Dettori, F, Dey, B, Di Cicco, A, Di Nezza, P, Didenko, S, Dieste Maronas, L, Dijkstra, H, Dobishuk, V, Dong, C, Donohoe, AM, Dordei, F, Dos Reis, AC, Douglas, L, Dovbnya, A, Downes, AG, Dudek, MW, Dufour, L, Duk, V, Durante, P, Durham, JM, Dutta, D, Dziurda, A, Dzyuba, A, Easo, S, Egede, U, Egorychev, V, Eidelman, S, Eisenhardt, S, Ek-In, S, Eklund, L, Ely, S, Ene, A, Epple, E, Escher, S, Eschle, J, Esen, S, Evans, T, Falabella, A, Fan, J, Fan, Y, Fang, B, Farry, S, Fazzini, D, Feo, M, Fernandez Prieto, A, Fernez, AD, Ferrari, F, Lopes, L Ferreira, Rodrigues, F Ferreira, Sole, S Ferreres, Ferrillo, M, Ferro-Luzzi, M, Filippov, S, Fini, RA, Fiorini, M, Firlej, M, Fischer, KM, Fitzgerald, DS, Fitzpatrick, C, Fiutowski, T, Fkiaras, A, Fleuret, F, Fontana, M, Fontanelli, F, Forty, R, Foulds-Holt, D, Lima, V Franco, Sevilla, M Franco, Frank, M, Franzoso, E, Frau, G, Frei, C, Friday, DA, Fu, J, Fuehring, Q, Gabriel, E, Galati, G, Gallas Torreira, A, Galli, D, Gambetta, S, Gan, Y, Gandelman, M, Gandini, P, Gao, Y, Garau, M, Garcia Martin, LM, Garcia Moreno, P, Garcia Pardinas, J, Garcia Plana, B, Garcia Rosales, FA, Garrido, L, Gaspar, C, Geertsema, RE, Gerick, D, Gerken, LL, Gersabeck, E, Gersabeck, M, Gershon, T, Gerstel, D, Giambastiani, L, Gibson, V, Giemza, HK, Gilman, AL, Giovannetti, M, Gioventu, A, Gironella Gironell, P, Giubega, L, Giugliano, C, Gizdov, K, Gkougkousis, EL, Gligorov, VV, Gobel, C, Golobardes, E, Golubkov, D, Golutvin, A, Gomes, A, Gomez Fernandez, S, Goncalves Abrantes, F, Goncerz, M, Gong, G, Gorbounov, P, Gorelov, IV, Gotti, C, Govorkova, E, Grabowski, JP, Grammatico, T, Cardoso, LA Granado, Grauges, E, Graverini, E, Graziani, G, Grecu, A, Greeven, LM, Grieser, NA, Grillo, L, Gromov, S, Cazon, BR Gruberg, Gu, C, Guarise, M, Guittiere, M, Gunther, PA, Gushchin, E, Guth, A, Guz, Y, Gys, T, Hadavizadeh, T, Haefeli, G, Haen, C, Haimberger, J, Halewood-Leagas, T, Hamilton, PM, Hammerich, JP ORCID: 0000-0002-5556-1775, Han, Q, Han, X, Hancock, TH, Hansen, EB, Hansmann-Menzemer, S, Harnew, N, Harrison, T, Hasse, C, Hatch, M, He, J, Hecker, M, Heijhoff, K, Heinicke, K, Hennequin, AM, Hennessy, K ORCID: 0000-0002-1529-8087, Henry, L, Heuel, J, Hicheur, A, Hill, D, Hilton, M, Hollitt, SE, Hou, R, Hou, Y, Hu, J, Hu, J, Hu, W, Hu, X, Huang, W, Huang, X, Hulsbergen, W, Hunter, RJ, Hushchyn, M, Hutchcroft, D ORCID: 0000-0002-4174-6509, Hynds, D, Ibis, P, Idzik, M, Ilin, D, Ilten, P, Inglessi, A, Ishteev, A, Ivshin, K, Jacobsson, R, Jage, H, Jakobsen, S, Jans, E, Jashal, BK, Jawahery, A, Jevtic, V, Jiang, F, John, M, Johnson, D, Jones, CR, Jones, TP, Jost, B, Jurik, N, Kadavath, SH Kalavan, Kandybei, S, Kang, Y, Karacson, M, Karpov, M, Keizer, F, Keller, DM, Kenzie, M, Ketel, T, Khanji, B, Kharisova, A, Kholodenko, S, Kirn, T, Kirsebom, VS, Kitouni, O, Klaver, S, Kleijne, N, Klimaszewski, K, Kmiec, MR, Koliiev, S, Kondybayeva, A, Konoplyannikov, A, Kopciewicz, P, Kopecna, R, Koppenburg, P, Korolev, M, Kostiuk, I, Kot, O, Kotriakhova, S, Kravchenko, P, Kravchuk, L, Krawczyk, RD, Kreps, M, Kress, F, Kretzschmar, S, Krokovny, P, Krupa, W, Krzemien, W, Kucharczyk, M, Kudryavtsev, V, Kuindersma, HS, Kunde, GJ, Kvaratskheliya, T, Lacarrere, D, Lafferty, G, Lai, A, Lampis, A, Lancierini, D, Lane, JJ, Lane, R, Lanfranchi, G, Langenbruch, C, Langer, J, Lantwin, O, Latham, T, Lazzari, F, Le Gac, R, Lee, SH, Lefevre, R, Leflat, A, Legotin, S, Leroy, O, Lesiak, T, Leverington, B, Li, H, Li, P, Li, S, Li, Y, Li, Y, Li, Z, Liang, X, Lin, T, Lindner, R, Lisovskyi, V, Litvinov, R, Liu, G, Liu, H, Liu, Q, Liu, S, Lobo Salvia, A, Loi, A, Lomba Castro, J, Longstaff, I, Lopes, JH, Lopez Solino, S, Lovell, GH, Lu, Y, Lucarelli, C, Lucchesi, D, Luchuk, S, Martinez, M Lucio, Lukashenko, V, Luo, Y, Lupato, A, Luppi, E, Lupton, O, Lusiani, A, Lyu, X, Ma, L, Ma, R, Maccolini, S, Machefert, F, Maciuc, F, Macko, V, Mackowiak, P, Maddrell-Mander, S, Madejczyk, O, Mohan, LR Madhan, Maev, O, Maevskiy, A, Maisuzenko, D, Majewski, MW, Malczewski, JJ, Malde, S, Malecki, B, Malinin, A, Maltsev, T, Malygina, H, Manca, G, Mancinelli, G, Manuzzi, D, Marangotto, D, Maratas, J, Marchand, JF, Marconi, U, Mariani, S, Benito, C Marin, Marinangeli, M, Marks, J, Marshall, AM, Marshall, PJ, Martelli, G, Martellotti, G, Martinazzoli, L, Martinelli, M, Martinez Santos, D, Martinz Vidal, F, Massafferri, A, Materok, M, Matev, R, Mathad, A, Matiunin, V, Matteuzzi, C, Mattioli, KR, Mauri, A, Maurice, E, Mauricio, J, Mazurek, M, Mccann, M, Mcconnell, L, Mcgrath, TH, Mchugh, NT, Mcnab, A, Mcnulty, R, Mead, JV, Meadows, B, Meier, G, Meinert, N, Melnychuk, D, Meloni, S, Merk, M, Merli, A, Garcia, L Meyer, Mikhasenko, M, Milanes, DA, Millard, E, Milovanovic, M, Minard, M-N, Minotti, A, Minzoni, L, Mitchell, SE, Mitreska, B, Mitzel, DS, Modden, A, Mohammed, RA, Moise, RD, Mokhnenko, S, Mombacher, T, Monroy, IA, Monteil, S, Morandin, M, Morello, G, Morello, MJ, Moron, J, Morris, AB, Morris, AG, Mountain, R, Mu, H, Muheim, F, Mulder, M, Muller, D, Muller, K, Murphy, CH, Murray, D, Muzzetto, P, Naik, P, Nakada, T, Nandakumar, R, Nanut, T, Nasteva, I, Needham, M, Neri, I, Neri, N, Neubert, S, Neufeld, N, Newcombe, R, Niel, EM, Nieswand, S, Nikitin, N, Nolte, NS, Normand, C, Nunez, C, Oblakowska-Mucha, A, Obraztsov, V, Oeser, T, O'Hanlon, DP, Okamura, S, Oldeman, R, Oliva, F, Olivares, ME, Onderwater, CJG, O'Neil, RH, Otalora Goicochea, JM, Ovsiannikova, T, Owen, P, Oyanguren, A, Padeken, KO, Pagare, B, Pais, PR, Pajero, T, Palano, A, Palutan, M, Pan, Y, Panshin, G, Papanestis, A, Pappagallo, M, Pappalardo, LL, Pappenheimer, C, Parker, W, Parkes, C, Passalacqua, B, Passaleva, G, Pastore, A, Patel, M, Patrignani, C, Pawley, CJ, Pearce, A, Pellegrino, A, Altarelli, M Pepe, Perazzini, S, Pereima, D, Periero Castro, A, Perret, P, Petric, M, Petridis, K, Petrolini, A, Petrov, A, Petrucci, S, Petruzzo, M, Pham, TTH, Pica, L, Piccini, M, Pietrzyk, B, Pietrzyk, G, Pili, M, Pinci, D, Pisani, F, Pizzichemi, M, Resmi, PK, Placinta, V, Plews, J, Casasus, M Plo, Polci, F, Lener, M Poli, Poliakova, M, Poluektov, A, Polukhina, N, Polyakov, I, Polycarpo, E, Ponce, S, Popov, D, Popov, S, Poslavskii, S, Prasanth, K, Promberger, L, Prouve, C, Pugatch, V, Puill, V, Pullen, H, Punzi, G, Qi, H, Qian, W, Qin, J, Qin, N, Quagliani, R, Quintana, B, Raab, NV, Trejo, RI Rabadan, Rachwal, B, Rademacker, JH, Rama, M, Pernas, M Ramos, Rangel, MS, Ratnikov, F, Raven, G, Reboud, M, Redi, F, Reiss, F, Alepuz, C Remon, Ren, Z, Renaudin, V, Ribatti, R, Ricciardi, S, Rinnert, K, Robbe, P, Robertson, G, Rodrigues, AB, Rodrigues, E, Rodriguez Lopez, JA, Rodriguez Rodriguez, ERR, Rollings, A, Roloff, P, Romanovskiy, V, Romero Lamas, M, Romero Vidal, A, Roth, JD, Rotondo, M, Rudolph, MS, Ruf, T, Ruiz Fernandez, RA, Vidal, J Ruiz, Ryzhikov, A, Ryzka, J, Saborido Silva, JJ, Sagidova, N, Sahoo, N, Saitta, B, Salomoni, M, Gras, C Sanchez, Santacesaria, R, Santamarina Rios, C, Santimaria, M, Santovetti, E, Saranin, D, Sarpis, G, Sarpis, M, Sarti, A, Satriano, C, Satta, A, Saur, M, Savrina, D, Sazak, H, Smead, LG Scantlebury, Scarabotto, A, Schael, S, Scherl, S, Schiller, M, Schindler, H, Schmelling, M, Schmidt, B, Schmitt, S, Schneider, O, Schopper, A, Schubiger, M, Schulte, S, Schune, MH, Schwemmer, R, Sciascia, B, Sellam, S, Semennikov, A, Soares, M Senghi, Sergi, A, Serra, N, Sestini, L, Seuthe, A, Shang, Y, Shangase, DM, Shapkin, M, Shchemerov, I, Shchutska, L, Shears, T ORCID: 0000-0002-2653-1366, Shekhtman, L, Shen, Z, Shevchenko, V, Shields, EB, Shimizu, Y, Shmanin, E, Shupperd, JD, Siddi, BG, Coutinho, R Silva, Simi, G, Simone, S, Skidmore, N, Skwarnicki, T, Slater, MW, Slazyk, I, Smallwood, JC, Smeaton, JG, Smetkina, A, Smith, E, Smith, M, Snoch, A, Soares, M, Lavra, L Soares, Sokoloff, MD, Soler, FJP, Solovev, A, Solovyev, I, Souza De Almeida, FL, De Paula, B Souza, Spaan, B, Norella, E Spadaro, Spradlin, P, Stagni, F, Stahl, M, Stahl, S, Stanislaus, S, Steinkamp, O, Stenyakin, O, Stevens, H, Stone, S, Straticiuc, M, Strekalina, D, Suljik, F, Sun, J, Sun, L, Sun, Y, Svihra, P, Swallow, PN, Swientek, K, Szabelski, A, Szumlak, T, Szymanski, M, Taneja, S, Tanner, AR, Tat, MD, Terentev, A, Teubert, F, Thomas, E, Thompson, DJD, Thomson, KA, Tisserand, V, T'Jampens, S, Tobin, M, Tomassetti, L, Tong, X, Machado, D Torres, Tou, DY, Trifonova, E, Trippl, C, Tuci, G, Tully, A, Tuning, N, Ukleja, A, Unverzagt, DJ, Ursov, E, Usachov, A, Ustyuzhanin, A, Uwer, U, Vagner, A, Vagnoni, V, Valassi, A, Valenti, G, Vallus Canudas, N, Van Beuzekom, M, Van Dijk, M, Van Herwijnen, E, Van Hulse, CB, Van Veghel, M, Vazquez Gomez, R, Vazquez Regueiro, P, Vazquez Sierra, C, Vecchi, S, Velthuis, JJ, Veltri, M, Venkateswaran, A, Veronesi, M, Vesterinen, M, Vieira, D, Diaz, M Vieites, Viemann, H, Vilasis-Cardona, X, Figueras, E Vilella, Villa, A, Vincent, P, Volle, FC, Vom Bruch, D, Vorobyev, A, Vorobyev, V, Voropaev, N, Vos, K, Waldi, R, Walsh, J, Wang, C, Wang, J, Wang, J, Wang, J, Wang, J, Wang, M, Wang, R, Wang, Y, Wang, Z, Wang, Z, Wang, Z, Ward, JA, Watson, NK, Weber, SG, Websdale, D, Weisser, C, Westhenry, BDC, White, DJ, Whitehead, M, Wiederhold, AR, Wiedner, D, Wilkinson, G, Wilkinson, M, Williams, I, Williams, M, Williams, MRJ, Wilson, FF, Wislicki, W, Witek, M, Witola, L, Wormser, G, Wotton, SA, Wu, H, Wyllie, K, Xiang, Z, Xiao, D, Xie, Y, Xu, A, Xu, J, Xu, L, Xu, M, Xu, Q, Xu, Z, Xu, Z, Yang, D, Yang, S, Yang, Y, Yang, Z, Yang, Z, Yao, Y, Yeomans, LE, Yin, H, Yu, J, Yuan, X, Yushchenko, O, Zaffaroni, E, Zavertyaev, M, Zdybal, M, Zenaiev, O, Zeng, M, Zhang, D, Zhang, L, Zhang, S, Zhang, S, Zhang, Y, Zhang, Y, Zharkova, A, Zhelezov, A, Zheng, Y, Zhou, T, Zhou, X, Zhou, Y, Zhovkovska, V, Zhu, X, Zhu, X, Zhu, Z, Zhukov, V, Zonneveld, JB, Zou, Q, Zucchelli, S, Zuliani, D and Zunica, G
(2022)
Observation of an exotic narrow doubly charmed tetraquark.
NATURE PHYSICS, 18 (7).
751-+.
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Abstract
<jats:title>Abstract</jats:title><jats:p>Conventional, hadronic matter consists of baryons and mesons made of three quarks and a quark–antiquark pair, respectively<jats:sup>1,2</jats:sup>. Here, we report the observation of a hadronic state containing four quarks in the Large Hadron Collider beauty experiment. This so-called tetraquark contains two charm quarks, a <jats:inline-formula><jats:alternatives><jats:tex-math>$$\overline{{{{{u}}}}}$$</jats:tex-math><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML">
<mml:mover>
<mml:mrow>
<mml:mi>u</mml:mi>
</mml:mrow>
<mml:mo>¯</mml:mo>
</mml:mover>
</mml:math></jats:alternatives></jats:inline-formula> and a <jats:inline-formula><jats:alternatives><jats:tex-math>$$\overline{{{{{d}}}}}$$</jats:tex-math><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML">
<mml:mover>
<mml:mrow>
<mml:mi>d</mml:mi>
</mml:mrow>
<mml:mo>¯</mml:mo>
</mml:mover>
</mml:math></jats:alternatives></jats:inline-formula> quark. This exotic state has a mass of approximately 3,875 MeV and manifests as a narrow peak in the mass spectrum of <jats:italic>D</jats:italic><jats:sup>0</jats:sup><jats:italic>D</jats:italic><jats:sup>0</jats:sup><jats:italic>π</jats:italic><jats:sup>+</jats:sup> mesons just below the <jats:italic>D</jats:italic><jats:sup>*+</jats:sup><jats:italic>D</jats:italic><jats:sup>0</jats:sup> mass threshold. The near-threshold mass together with the narrow width reveals the resonance nature of the state.</jats:p>
Dimensions
Dimensions
