A narrow pentaquark state, P-c(4312)(+), decaying to J/psi p, is discovered with a statistical significance of 7.3 sigma in a data sample of Lambda(0)(b) -> J/psi pK(-) decays, which is an order of magnitude larger than that previously analyzed by the LHCb Collaboration. The P-c(4450)(+) pentaquark structure formerly reported by LHCb is confirmed and observed to consist of two narrow overlapping peaks, P-c(4440)(+) and P-c(4457)(+), where the statistical significance of this two-peak interpretation is 5.4 sigma. The proximity of the Sigma(+)(c)(D) over bar (0) and Sigma(+)(c)(D) over bar (*0) thresholds to the observed narrow peaks suggests that they play an important role in the dynamics of these states.

(2019). Observation of a Narrow Pentaquark State, Pc (4312)+, and of the Two-Peak Structure of the Pc (4450)+ [journal article - articolo]. In PHYSICAL REVIEW LETTERS. Retrieved from https://hdl.handle.net/10446/266132

Observation of a Narrow Pentaquark State, Pc (4312)+, and of the Two-Peak Structure of the Pc (4450)+

Redi F;
2019-01-01

Abstract

A narrow pentaquark state, P-c(4312)(+), decaying to J/psi p, is discovered with a statistical significance of 7.3 sigma in a data sample of Lambda(0)(b) -> J/psi pK(-) decays, which is an order of magnitude larger than that previously analyzed by the LHCb Collaboration. The P-c(4450)(+) pentaquark structure formerly reported by LHCb is confirmed and observed to consist of two narrow overlapping peaks, P-c(4440)(+) and P-c(4457)(+), where the statistical significance of this two-peak interpretation is 5.4 sigma. The proximity of the Sigma(+)(c)(D) over bar (0) and Sigma(+)(c)(D) over bar (*0) thresholds to the observed narrow peaks suggests that they play an important role in the dynamics of these states.
articolo
2019
Aaij, R; Beteta, Ca; Adeva, B; Adinolfi, M; Aidala, Ca; Ajaltouni, Z; Akar, S; Albicocco, P; Albrecht, J; Alessio, F; Alexander, M; Albero, Aa; Alkhazov, G; Cartelle, Pa; Alves, Aa; Amato, S; Amhis, Y; Amhis, Y; An, L; Anderlini, L; Andreassi, G; Andreotti, M; Andrews, Je; Archilli, F; D'Argent, P; Romeu, Ja; Artamonov, A; Artuso, M; Arzymatov, K; Aslanides, E; Atzeni, M; Audurier, B; Bachmann, S; Back, Jj; Baker, S; Balagura, V; Baldini, W; Baranov, A; Barlow, Rj; Barsuk, S; Barter, W; Bartolini, M; Baryshnikov, F; Batozskaya, V; Batsukh, B; Battig, A; Battista, V; Bay, A; Bedeschi, F; Bediaga, I; Beiter, A; Bel, Lj; Belavin, V; Belin, S; Beliy, N; Bellee, V; Belloli, N; Belous, K; Belyaev, I; Ben-Haim, E; Bencivenni, G; Benson, S; Beranek, S; Berezhnoy, A; Bernet, R; Berninghoff, D; Bertholet, E; Bertolin, A; Betancourt, C; Betti, F; Bettler, Mo; van Beuzekom, M; Bezshyiko, I; Bhasin, S; Bhom, J; Bieker, Ms; Bifani, S; Billoir, P; Birnkraut, A; Bizzeti, A; Bjorn, M; Blago, Mp; Blake, T; Blanc, F; Blusk, S; Bobulska, D; Bocci, V; Garcia, Ob; Boettcher, T; Bondar, A; Bondar, N; Borghi, S; Borisyak, M; Borsato, M; Boubdir, M; Bowcock, Tjv; Bozzi, C; Braun, S; Rodriguez, Ab; Brodski, M; Brodzicka, J; Gonzalo, Ab; Brundu, D; Buchanan, E; Buonaura, A; Burr, C; Bursche, A; Butter, Js; Buytaert, J; Byczynski, W; Cadeddu, S; Cai, H; Calabrese, R; Cali, S; Calladine, R; Calvi, M; Gomez, Mc; Camboni, A; Campana, P; Perez, Dhc; Capriotti, L; Carbone, A; Carboni, G; Cardinale, R; Cardini, A; Carniti, P; Akiba, Kc; Vidal, Ac; Casse, G; Cattaneo, M; Cavallero, G; Cenci, R; Chapman, Mg; Charles, M; Charpentier, P; Chatzikonstantinidis, G; Chefdeville, M; Chekalina, V; Chen, C; Chen, S; Chitic, Sg; Chobanova, V; Chrzaszcz, M; Chubykin, A; Ciambrone, P; Vidal, Xc; Ciezarek, G; Cindolo, F; Clarke, Pel; Clemencic, M; Cliff, Hv; Closier, J; Coco, V; Coelho, Jab; Cogan, J; Cogneras, E; Cojocariu, L; Collins, P; Colombo, T; Comerma-Montells, A; Contu, A; Coombs, G; Coquereau, S; Corti, G; Sobral, Cmc; Couturier, B; Cowan, Ga; Craik, Dc; Crocombe, A; Torres, Mc; Currie, R; D'Ambrosio, C; Da Silva, Cl; Dall'Occo, E; Dalseno, J; Danilina, A; Davis, A; Francisco, Od; De Bruyn, K; De Capua, S; De Cian, M; De Miranda, Jm; De Paula, L; De Serio, M; De Simone, P; Dean, Ct; Dean, W; Decamp, D; Del Buono, L; Delaney, B; Dembinski, Hp; Demmer, M; Dendek, A; Derkach, D; Deschamps, O; Desse, F; Dettori, F; Dey, B; Di Canto, A; Di Nezza, P; Didenko, S; Dijkstra, H; Dordei, F; Dorigo, M; Suarez, Ad; Douglas, L; Dovbnya, A; Dreimanis, K; Dufour, L; Dujany, G; Durante, P; Durham, Jm; Dutta, D; Dzhelyadin, R; Dziewiecki, M; Dziurda, A; Dzyuba, A; Easo, S; Egede, U; Egorychev, V; Eidelman, S; Eisenhardt, S; Eitschberger, U; Ek-In, S; Ekelhof, R; Eklund, L; Ely, S; Ene, A; Escher, S; Esen, S; Evans, T; Falabella, A; Farley, N; Farry, S; Fazzini, D; Declara, Pf; Prieto, Af; Fernandez-Ramirez, C; Ferrari, F; Lopes, Lf; Rodrigues, Ff; Sole, Sf; Ferro-Luzzi, M; Filippov, S; Fini, Ra; Fiorini, M; Firlej, M; Fitzpatrick, C; Fiutowski, T; Fleuret, F; Fontana, M; Fontanelli, F; Forty, R; Lima, Vf; Sevilla, Mf; Frank, M; Frei, C; Fu, J; Funk, W; Farber, C; Feo, M; Gabriel, E; Torreira, Ag; Galli, D; Gallorini, S; Gambetta, S; Gan, Y; Gandelman, M; Gandini, P; Gao, Y; Martin, Lmg; Plana, Bg; Pardinas, Jg; Tico, Jg; Garrido, L; Gascon, D; Gaspar, C; Gazzoni, G; Gerick, D; Gersabeck, E; Gersabeck, M; Gershon, T; Gerstel, D; Ghez, P; Gibson, V; Girard, Og; Gironell, Pg; Giubega, L; Gizdov, K; Gligorov, Vv; Golubkov, D; Golutvin, A; Gomes, A; Gorelov, Iv; Gotti, C; Govorkova, E; Grabowski, Jp; Diaz, Rg; Cardoso, Lag; Grauges, E; Graverini, E; Graziani, G; Grecu, A; Greim, R; Griffith, P; Grillo, L; Gruber, L; Cazon, Brg; Gu, C; Guo, X; Gushchin, E; Guth, A; Guz, Y; Gys, T; Gobel, C; Hadavizadeh, T; Hadjivasiliou, C; Haefeli, G; Haen, C; Haines, Sc; Hamilton, B; Han, Q; Han, X; Hancock, Th; Hansmann-Menzemer, S; Harnew, N; Harrison, T; Hasse, C; Hatch, M; He, J; Hecker, M; Heinicke, K; Heister, A; Hennessy, K; Henry, L; van Herwijnen, E; Heuel, J; Hess, M; Hicheur, A; Charman, Rh; Hill, D; Hilton, M; Hopchev, Ph; Hu, J; Hu, W; Huang, W; Huard, Zc; Hulsbergen, W; Humair, T; Hushchyn, M; Hutchcroft, D; Hynds, D; Ibis, P; Idzik, M; Ilten, P; Inglessi, A; Inyakin, A; Ivshin, K; Jacobsson, R; Jakobsen, S; Jalocha, J; Jans, E; Jashal, Bk; Jawahery, A; Jiang, F; John, M; Johnson, D; Jones, Cr; Joram, C; Jost, B; Jurik, N; Kandybei, S; Karacson, M; Kariuki, Jm; Karodia, S; Kazeev, N; Kecke, M; Keizer, F; Kelsey, M; Kenzie, M; Ketel, T; Khanji, B; Kharisova, A; Khurewathanakul, C; Kim, Ke; Kirn, T; Kirsebom, Vs; Klaver, S; Klimaszewski, K; Koliiev, S; Kolpin, M; Kondybayeva, A; Konoplyannikov, A; Kopecna, R; Koppenburg, P; Kostiuk, I; Kot, O; Kotriakhova, S; Kozeiha, M; Kravchuk, L; Kreps, M; Kress, F; Kretzschmar, S; Krokovny, P; Krupa, W; Krzemien, W; Kucewicz, W; Kucharczyk, M; Kudryavtsev, V; Kunde, Gj; Kuonen, Ak; Kvaratskheliya, T; Lacarrere, D; Lafferty, G; Lai, A; Lancierini, D; Lanfranchi, G; Langenbruch, C; Latham, T; Lazzeroni, C; Le Gac, R; Leflat, A; Lefevre, R; Lemaitre, F; Leroy, O; Lesiak, T; Leverington, B; Li, H; Li, Pr; Li, X; Li, Y; Li, Z; Liang, X; Likhomanenko, T; Lindner, R; Ling, P; Lionetto, F; Lisovskyi, V; Liu, G; Liu, X; Loh, D; Loi, A; Castro, Jl; Longstaff, I; Lopes, Jh; Loustau, G; Lovell, Gh; Lucchesi, D; Martinez, Ml; Luo, Y; Lupato, A; Luppi, E; Lupton, O; Lusiani, A; Lyu, X; Ma, R; Machefert, F; Maciuc, F; Macko, V; Mackowiak, P; Maddrell-Mander, S; Maev, O; Maguire, K; Maisuzenko, D; Majewski, Mw; Malde, S; Malecki, B; Malinin, A; Maltsev, T; Malygina, H; Manca, G; Mancinelli, G; Marangotto, D; Maratas, J; Marchand, Jf; Marconi, U; Benito, Cm; Marinangeli, M; Marino, P; Marks, J; Marshall, Pj; Martellotti, G; Martinazzoli, L; Martinelli, M; Santos, Dm; Vidal, Fm; Massafferri, A; Materok, M; Matev, R; Mathad, A; Mathe, Z; Matiunin, V; Matteuzzi, C; Mattioli, Kr; Mauri, A; Maurice, E; Maurin, B; Mccann, M; Mcnab, A; Mcnulty, R; Mead, Jv; Meadows, B; Meaux, C; Meinert, N; Melnychuk, D; Merk, M; Merli, A; Michielin, E; Mikhasenko, M; Milanes, Da; Millard, E; Minard, Mn; Minzoni, L; Mitzel, Ds; Mogini, A; Moise, Rd; Mombacher, T; Monroy, Ia; Monteil, S; Morandin, M; Morello, G; Morello, Mj; Moron, J; Morris, Ab; Mountain, R; Mu, H; Muheim, F; Mukherjee, M; Mulder, M; Murphy, Ch; Murray, D; Modden, A; Muller, D; Muller, J; Muller, K; Muller, V; Naik, P; Nakada, T; Nandakumar, R; Nandi, A; Nanut, T; Nasteva, I; Needham, M; Neri, N; Neubert, S; Neufeld, N; Newcombe, R; Nguyen, Td; Nguyen-Mau, C; Nieswand, S; Niet, R; Nikitin, N; Nolte, Ns; O'Hanlon, Dp; Oblakowska-Mucha, A; Obraztsov, V; Ogilvy, S; Oldeman, R; Onderwater, Cjg; Osborn, Jd; Ossowska, A; Goicochea, Jmo; Ovsiannikova, T; Owen, P; Oyanguren, A; Pais, Pr; Pajero, T; Palano, A; Palutan, M; Panshin, G; Papanestis, A; Pappagallo, M; Pappalardo, Ll; Parker, W; Parkes, C; Passaleva, G; Pastore, A; Patel, M; Patrignani, C; Pearce, A; Pellegrino, A; Penso, G; Altarelli, Mp; Perazzini, S; Pereima, D; Perret, P; Pescatore, L; Petridis, K; Petrolini, A; Petrov, A; Petrucci, S; Petruzzo, M; Pietrzyk, B; Pietrzyk, G; Pikies, M; Pili, M; Pilloni, A; Pinci, D; Pinzino, J; Pisani, F; Piucci, A; Placinta, V; Playfer, S; Plews, J; Casasus, Mp; Polci, F; Lener, Mp; Poliakova, M; Poluektov, A; Polukhina, N; Polyakov, I; Polycarpo, E; Pomery, Gj; Ponce, S; Popov, A; Popov, D; Poslavskii, S; Price, E; Prouve, C; Pugatch, V; Navarro, Ap; Pullen, H; Punzi, G; Qian, W; Qin, J; Quagliani, R; Quintana, B; Raab, Nv; Rachwal, B; Rademacker, Jh; Rama, M; Pernas, Mr; Rangel, Ms; Ratnikov, F; Raven, G; Salzgeber, Mr; Reboud, M; Redi, Federico Leo; Reichert, S; dos Reis, Ac; Reiss, F; Alepuz, Cr; Ren, Z; Renaudin, V; Ricciardi, S; Richards, S; Rinnert, K; Robbe, P; Robert, A; Rodrigues, Ab; Rodrigues, E; Lopez, Jar; Roehrken, M; Roiser, S; Rollings, A; Romanovskiy, V; Vidal, Ar; Roth, Jd; Rotondo, M; Rudolph, Ms; Ruf, T; Vidal, Jr; Silva, Jjs; Sagidova, N; Saitta, B; Guimaraes, Vs; Gras, Cs; Mayordomo, Cs; Sedes, Bs; Santacesaria, R; Rios, Cs; Santimaria, M; Santovetti, E; Sarpis, G; Sarti, A; Satriano, C; Satta, A; Saur, M; Savrina, D; Schael, S; Schellenberg, M; Schiller, M; Schindler, H; Schmelling, M; Schmelzer, T; Schmidt, B; Schneider, O; Schopper, A; Schreiner, Hf; Schubiger, M; Schulte, S; Schune, Mh; Schwemmer, R; Sciascia, B; Sciubba, A; Semennikov, A; Sepulveda, Es; Sergi, A; Serra, N; Serrano, J; Sestini, L; Seuthe, A; Seyfert, P; Shapkin, M; Shears, T; Shekhtman, L; Shevchenko, V; Shmanin, E; Siddi, Bg; Coutinho, Rs; de Oliveira, Ls; Simi, G; Simone, S; Skiba, I; Skidmore, N; Skwarnicki, T; Slater, Mw; Smeaton, Jg; Smith, E; Smith, It; Smith, M; Soares, M; Lavra, Ls; Sokoloff, Md; Soler, Fjp; De Paula, Bs; Spaan, B; Norella, Es; Spradlin, P; Stagni, F; Stahl, M; Stahl, S; Stefko, P; Stefkova, S; Steinkamp, O; Stemmle, S; Stenyakin, O; Stepanova, M; Stevens, H; Stocchi, A; Stone, S; Stracka, S; Stramaglia, Me; Straticiuc, M; Straumann, U; Strokov, S; Sun, J; Sun, L; Sun, Y; Swientek, K; Szabelski, A; Szczepaniak, A; Szumlak, T; Szymanski, M; T'Jampens, S; Tang, Z; Tekampe, T; Tellarini, G; Teubert, F; Thomas, E; van Tilburg, J; Tilley, Mj; Tisserand, V; Tobin, M; Tolk, S; Tomassetti, L; Tonelli, D; Tou, Dy; Tournefier, E; Traill, M; Tran, Mt; Trisovic, A; Tsaregorodtsev, A; Tuci, G; Tully, A; Tuning, N; Ukleja, A; Usachov, A; Ustyuzhanin, A; Uwer, U; Vagner, A; Vagnoni, V; Valassi, A; Valat, S; Valenti, G; Van Hecke, H; Van Hulse, Cb; Vasiliev, A; Gomez, Rv; Regueiro, Pv; Vecchi, S; van Veghel, M; Velthuis, Jj; Veltri, M; Venkateswaran, A; Vernet, M; Veronesi, M; Vesterinen, M; Barbosa, Jvv; Vieira, D; Diaz, Mv; Viemann, H; Vilasis-Cardona, X; Vitkovskiy, A; Vitti, M; Volkov, V; Vollhardt, A; Bruch, Dv; Voneki, B; Vorobyev, A; Vorobyev, V; Voropaev, N; de Vries, Ja; Sierra, Cv; Waldi, R; Walsh, J; Wang, J; Wang, J; Wang, M; Wang, Y; Wang, Z; Ward, Dr; Wark, Hm; Watson, Nk; Websdale, D; Weiden, A; Weisser, C; Whitehead, M; Wilkinson, G; Wilkinson, M; Williams, I; Williams, Mrj; Williams, M; Williams, T; Wilson, Ff; Winn, M; Wislicki, W; Witek, M; Wormser, G; Wotton, Sa; Wyllie, K; Xiao, D; Xie, Y; Xing, H; Xu, A; Xu, L; Xu, M; Xu, Q; Xu, Z; Xu, Z; Yang, Z; Yang, Z; Yao, Y; Yeomans, E; Yin, H; Yu, J; Yuan, X; Yushchenko, O; Zarebski, Ka; Zavertyaev, M; Zeng, M; Zhang, D; Zhang, L; Zhang, S; Zhang, Wc; Zhang, Y; Zhelezov, A; Zheng, Y; Zhu, X; Zhukov, V; Zonneveld, Jb; Zucchelli, S
(2019). Observation of a Narrow Pentaquark State, Pc (4312)+, and of the Two-Peak Structure of the Pc (4450)+ [journal article - articolo]. In PHYSICAL REVIEW LETTERS. Retrieved from https://hdl.handle.net/10446/266132
File allegato/i alla scheda:
File Dimensione del file Formato  
PhysRevLett.122.222001.pdf

accesso aperto

Versione: publisher's version - versione editoriale
Licenza: Creative commons
Dimensione del file 815.43 kB
Formato Adobe PDF
815.43 kB Adobe PDF Visualizza/Apri
Pubblicazioni consigliate

Aisberg ©2008 Servizi bibliotecari, Università degli studi di Bergamo | Terms of use/Condizioni di utilizzo

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10446/266132
Citazioni
  • Scopus 509
  • ???jsp.display-item.citation.isi??? 387
social impact