Evidence for Exotic Hadron Contributions to Λ_{b}^{0}→J/ψpπ^{-} Decays

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Aaij, R, Beteta, CA, Adeva, B, Adinolfi, M, Ajaltouni, Z, Akar, S, Albrecht, J, Alessio, F, Alexander, M, Ali, S et al (show 734 more authors) , Alkhazov, G, Cartelle, PA, Jr, AAA, Amato, S, Amerio, S, Amhis, Y, An, L, Anderlini, L, Andreassi, G, Andreotti, M, Andrews, JE, Appleby, RB, Gutierrez, OA, Archilli, F, d'Argent, P, Romeu, JA, Artamonov, A, Artuso, M, Aslanides, E, Auriemma, G, Baalouch, M, Bachmann, S, Back, JJ, Badalov, A, Baesso, C, Baldini, W, Barlow, RJ, Barschel, C, Barsuk, S, Barter, W, Batozskaya, V, Battista, V, Bay, A, Beaucourt, L, Beddow, J, Bedeschi, F, Bediaga, I, Bel, LJ, Bellee, V, Belloli, N, Belous, K, Belyaev, I, Ben-Haim, E, Bencivenni, G, Benson, S, Benton, J, Berezhnoy, A, Bernet, R, Bertolin, A, Bettler, M-O, van Beuzekom, M, Bifani, S, Billoir, P, Bird, T, Birnkraut, A, Bitadze, A, Bizzeti, A, Blake, T, Blanc, F, Blouw, J, Blusk, S, Bocci, V, Boettcher, T, Bondar, A, Bondar, N, Bonivento, W, Borghi, S, Borisyak, M, Borsato, M, Bossu, F, Boubdir, M, Bowcock, TJV ORCID: 0000-0002-3505-6915, Bowen, E, Bozzi, C, Braun, S, Britsch, M, Britton, T, Brodzicka, J, Buchanan, E, Burr, C, Bursche, A, Buytaert, J, Cadeddu, S, Calabrese, R, Calvi, M, Gomez, MC, Campana, P, Perez, DC, Capriotti, L, Carbone, A, Carboni, G, Cardinale, R, Cardini, A, Carniti, P, Carson, L, Akiba, KC, Casse, G ORCID: 0000-0002-8516-237X, Cassina, L, Garcia, LC, Cattaneo, M, Cauet, C, Cavallero, G, Cenci, R, Charles, M, Charpentier, P, Chatzikonstantinidis, G, Chefdeville, M, Chen, S, Cheung, S-F, Chobanova, V, Chrzaszcz, M, Vidal, XC, Ciezarek, G, Clarke, PEL, Clemencic, M, Cliff, HV, Closier, J, Coco, V, Cogan, J, Cogneras, E, Cogoni, V, Cojocariu, L, Collazuol, G, Collins, P, Comerma-Montells, A, Contu, A, Cook, A, Coquereau, S, Corti, G, Corvo, M, Sobral, CMC, Couturier, B, Cowan, GA, Craik, DC, Crocombe, A, Torres, MC, Cunliffe, S, Currie, R, D'Ambrosio, C, Dall'Occo, E, Dalseno, J, David, PNY, Davis, A, Francisco, ODA, De Bruyn, K, De Capua, S, De Cian, M, De Miranda, JM, De Paula, L, De Simone, P, Dean, C-T, Decamp, D, Deckenhoff, M, Del Buono, L, Demmer, M, Derkach, D, Deschamps, O, Dettori, F, Dey, B, Di Canto, A, Dijkstra, H, Dordei, F, Dorigo, M, Suarez, AD, Dovbnya, A, Dreimanis, K, Dufour, L, Dujany, G, Dungs, K, Durante, P, Dzhelyadin, R, Dziurda, A, Dzyuba, A, Deleage, N, Easo, S, Egede, U, Egorychev, V, Eidelman, S, Eisenhardt, S, Eitschberger, U, Ekelhof, R, Eklund, L, Elsasser, C, Ely, S, Esen, S, Evans, HM, Evans, T, Falabella, A, Farley, N, Farry, S ORCID: 0000-0001-5119-9740, Fay, R, Ferguson, D, Albor, VF, Ferrari, F, Rodrigues, FF, Ferro-Luzzi, M, Filippov, S, Fiore, M, Fiorini, M, Firlej, M, Fitzpatrick, C, Fiutowski, T, Fleuret, F, Fohl, K, Fontana, M, Fontanelli, F, Forshaw, DC, Forty, R, Frank, M, Frei, C, Frosini, M, Fu, J, Furfaro, E, Farber, C, Torreira, AG, Galli, D, Gallorini, S, Gambetta, S, Gandelman, M, Gandini, P, Gao, Y, Pardinas, JG, Tico, JG, Garrido, L, Garsed, PJ, Gascon, D, Gaspar, C, Gavardi, L, Gazzoni, G, Gerick, D, Gersabeck, E, Gersabeck, M, Gershon, T, Ghez, P, Giani, S, Gibson, V, Girard, OG, Giubega, L, Gizdov, K, Gligorov, VV, Golubkov, D, Golutvin, A, Gomes, A, Gorelov, IV, Gotti, C, Gandara, MG, Diaz, RG, Cardoso, LAG, Grauges, E, Graverini, E, Graziani, G, Grecu, A, Griffith, P, Grillo, L, Cazon, BRG, Grunberg, O, Gushchin, E, Guz, Y, Gys, T, Gobel, C, Hadavizadeh, T, Hadjivasiliou, C, Haefeli, G, Haen, C, Haines, SC, Hall, S, Hamilton, B, Han, X, Hansmann-Menzemer, S, Harnew, N, Harnew, ST, Harrison, J, He, J, Head, T, Heister, A, Hennessy, K ORCID: 0000-0002-1529-8087, Henrard, P, Henry, L, Morata, JAH, van Herwijnen, E, Hess, M, Hicheur, A, Hill, D, Hombach, C, Hulsbergen, W, Humair, T, Hushchyn, M, Hussain, N, Hutchcroft, D ORCID: 0000-0002-4174-6509, Idzik, M, Ilten, P, Jacobsson, R, Jaeger, A, Jalocha, J, Jans, E, Jawahery, A, John, M, Johnson, D, Jones, CR, Joram, C, Jost, B, Jurik, N, Kandybei, S, Kanso, W, Karacson, M, Kariuki, JM, Karodia, S, Kecke, M, Kelsey, M, Kenyon, IR, Kenzie, M, Ketel, T, Khairullin, E, Khanji, B, Khurewathanakul, C, Kirn, T, Klaver, S, Klimaszewski, K, Koliiev, S, Kolpin, M, Komarov, I, Koopman, RF, Koppenburg, P, Kozachuk, A, Kozeiha, M, Kravchuk, L, Kreplin, K, Kreps, M, Krokovny, P, Kruse, F, Krzemien, W, Kucewicz, W, Kucharczyk, M, Kudryavtsev, V, Kuonen, AK, Kurek, K, Kvaratskheliya, T, Lacarrere, D, Lafferty, G, Lai, A, Lambert, D, Lanfranchi, G, Langenbruch, C, Langhans, B, Latham, T, Lazzeroni, C, Le Gac, R, van Leerdam, J, Lees, J-P, Leflat, A, Lefrancois, J, Lefevre, R, Lemaitre, F, Cid, EL, Leroy, O, Lesiak, T, Leverington, B, Li, Y, Likhomanenko, T, Lindner, R, Linn, C, Lionetto, F, Liu, B, Liu, X, Loh, D, Longstaff, I, Lopes, JH, Lucchesi, D, Martinez, ML, Luo, H, Lupato, A, Luppi, E, Lupton, O, Lusiani, A, Lyu, X, Machefert, F, Maciuc, F, Maev, O, Maguire, K, Malde, S, Malinin, A, Maltsev, T, Manca, G, Mancinelli, G, Manning, P, Maratas, J, Marchand, JF, Marconi, U, Benito, CM, Marino, P, Marks, J, Martellotti, G, Martin, M, Martinelli, M, Santos, DM, Vidal, FM, Tostes, DM, Massacrier, LM, Massafferri, A, Matev, R, Mathad, A, Mathe, Z, Matteuzzi, C, Mauri, A, Maurin, B, Mazurov, A, McCann, M, McCarthy, J, Mcnab, A, McNulty, R, Meadows, B, Meier, F, Meissner, M, Melnychuk, D, Merk, M, Michielin, E, Milanes, DA, Minard, M-N, Mitzel, DS, Rodriguez, JM, Monroy, IA, Monteil, S, Morandin, M, Morawski, P, Morda, A, Morello, MJ, Moron, J, Morris, AB, Mountain, R, Muheim, F, Mulder, M, Mussini, M, Muller, D, Muller, J, Muller, K, Muller, V, Naik, P, Nakada, T, Nandakumar, R, Nandi, A, Nasteva, I, Needham, M, Neri, N, Neubert, S, Neufeld, N, Neuner, M, Nguyen, AD, Nguyen-Mau, C, Niess, V, Nieswand, S, Niet, R, Nikitin, N, Nikodem, T, Novoselov, A, O'Hanlon, DP, Oblakowska-Mucha, A, Obraztsov, V, Ogilvy, S, Okhrimenko, O, Oldeman, R, Onderwater, CJG, Goicochea, JMO, Otto, A, Owen, P, Oyanguren, A, Pais, PR, Palano, A, Palombo, F, Palutan, M, Panman, J, Papanestis, A, Pappagallo, M, Pappalardo, LL, Pappenheimer, C, Parker, W, Parkes, C, Passaleva, G, Patel, GD, Patel, M, Patrignani, C, Pearce, A, Pellegrino, A, Penso, G, Altarelli, MP, Perazzini, S, Perret, P, Pescatore, L, Petridis, K, Petrolini, A, Petrov, A, Petruzzo, M, Olloqui, EP, Pietrzyk, B, Pikies, M, Pinci, D, Pistone, A, Piucci, A, Playfer, S, Casasus, MP, Poikela, T, Polci, F, Poluektov, A, Polyakov, I, Polycarpo, E, Pomery, GJ, Popov, A, Popov, D, Popovici, B, Potterat, C, Price, E, Price, JD, Prisciandaro, J, Pritchard, A, Prouve, C, Pugatch, V, Navarro, AP, Punzi, G, Qian, W, Quagliani, R, Rachwal, B, Rademacker, JH, Rama, M, Pernas, MR, Rangel, MS, Raniuk, I, Raven, G, Redi, F, Reichert, S, dos Reis, AC, Alepuz, CR, Renaudin, V, Ricciardi, S, Richards, S, Rihl, M, Rinnert, K, Molina, VR, Robbe, P, Rodrigues, AB, Rodrigues, E, Lopez, JAR, Perez, PR, Rogozhnikov, A, Roiser, S, Romanovskiy, V, Vidal, AR, Ronayne, JW, Rotondo, M, Ruf, T, Valls, PR, Silva, JJS, Sadykhov, E, Sagidova, N, Saitta, B, Guimaraes, VS, Mayordomo, CS, Sedes, BS, Santacesaria, R, Rios, CS, Santimaria, M, Santovetti, E, Sarti, A, Satriano, C, Satta, A, Saunders, DM, Savrina, D, Schael, S, Schiller, M, Schindler, H, Schlupp, M, Schmelling, M, Schmelzer, T, Schmidt, B, Schneider, O, Schopper, A, Schubiger, M, Schune, M-H, Schwemmer, R, Sciascia, B, Sciubba, A, Semennikov, A, Sergi, A, Serra, N, Serrano, J, Sestini, L, Seyfert, P, Shapkin, M, Shapoval, I, Shcheglov, Y, Shears, T ORCID: 0000-0002-2653-1366, Shekhtman, L, Shevchenko, V, Shires, A, Siddi, BG, Coutinho, RS, de Oliveira, LS, Simi, G, Sirendi, M, Skidmore, N, Skwarnicki, T, Smith, E, Smith, IT, Smith, J, Smith, M, Snoek, H, Sokoloff, MD, Soler, FJP, Souza, D, De Paula, BS, Spaan, B, Spradlin, P, Sridharan, S, Stagni, F, Stahl, M, Stahl, S, Stefko, P, Stefkova, S, Steinkamp, O, Stenyakin, O, Stevenson, S, Stoica, S, Stone, S, Storaci, B, Stracka, S, Straticiuc, M, Straumann, U, Sun, L, Sutcliffe, W, Swientek, K, Syropoulos, V, Szczekowski, M, Szumlak, T, T'Jampens, S, Tayduganov, A, Tekampe, T, Tellarini, G, Teubert, F, Thomas, C, Thomas, E, van Tilburg, J, Tisserand, V, Tobin, M, Tolk, S, Tomassetti, L, Tonelli, D, Topp-Joergensen, S, Toriello, F, Tournefier, E, Tourneur, S, Trabelsi, K, Traill, M, Tran, MT, Tresch, M, Trisovic, A, Tsaregorodtsev, A, Tsopelas, P, Tully, A, Tuning, N, Ukleja, A, Ustyuzhanin, A, Uwer, U, Vacca, C, Vagnoni, V, Valat, S, Valenti, G, Vallier, A, Gomez, RV, Regueiro, PV, Vecchi, S, van Veghel, M, Velthuis, JJ, Veltri, M, Veneziano, G, Venkateswaran, A, Vesterinen, M, Viaud, B, Vieira, D, Diaz, MV, Vilasis-Cardona, X, Volkov, V, Vollhardt, A, Voneki, B, Voong, D, Vorobyev, A, Vorobyev, V, Voss, C, de Vries, JA, Sierra, CV, Waldi, R, Wallace, C, Wallace, R, Walsh, J, Wang, J, Ward, DR, Wark, HM ORCID: 0000-0002-5177-9136, Watson, NK, Websdale, D, Weiden, A, Whitehead, M, Wicht, J, Wilkinson, G, Wilkinson, M, Williams, M, Williams, MP, Williams, M, Williams, T, Wilson, FF, Wimberley, J, Wishahi, J, Wislicki, W, Witek, M, Wormser, G, Wotton, SA, Wraight, K, Wright, S, Wyllie, K, Xie, Y, Xu, Z, Yang, Z, Yin, H, Yu, J, Yuan, X, Yushchenko, O, Zangoli, M, Zarebski, KA, Zavertyaev, M, Zhang, L, Zhang, Y, Zhang, Y, Zhelezov, A, Zheng, Y, Zhokhov, A, Zhukov, V, Zucchelli, S and Collaboration, L (2016) Evidence for Exotic Hadron Contributions to Λ_{b}^{0}→J/ψpπ^{-} Decays. PHYSICAL REVIEW LETTERS, 117 (8). 082003-.

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Abstract

A full amplitude analysis of Λ_{b}^{0}→J/ψpπ^{-} decays is performed with a data sample acquired with the LHCb detector from 7 and 8 TeV pp collisions, corresponding to an integrated luminosity of 3  fb^{-1}. A significantly better description of the data is achieved when, in addition to the previously observed nucleon excitations N→pπ^{-}, either the P_{c}(4380)^{+} and P_{c}(4450)^{+}→J/ψp states, previously observed in Λ_{b}^{0}→J/ψpK^{-} decays, or the Z_{c}(4200)^{-}→J/ψπ^{-} state, previously reported in B^{0}→J/ψK^{+}π^{-} decays, or all three, are included in the amplitude models. The data support a model containing all three exotic states, with a significance of more than three standard deviations. Within uncertainties, the data are consistent with the P_{c}(4380)^{+} and P_{c}(4450)^{+} production rates expected from their previous observation taking account of Cabibbo suppression.

Item Type:	Article
Additional Information:	Version updated to the published one. All figures and tables, along with any supplementary material and additional information, are available at https://lhcbproject.web.cern.ch/lhcbproject/Publications/LHCbProjectPublic/LHCb-PAPER-2016-015.html
Uncontrolled Keywords:	particle decays, particle production
Depositing User:	Symplectic Admin
Date Deposited:	14 Sep 2016 10:59
Last Modified:	19 Jan 2023 07:30
DOI:	10.1103/PhysRevLett.117.082003
Open Access URL:	https://arxiv.org/pdf/1606.06999v2.pdf
Related URLs:	Author Publisher
URI:	https://livrepository.liverpool.ac.uk/id/eprint/3003301