Using proton-proton collision data, collected with the LHCb detector and corresponding to 1.0, 2.0 and 1.9 fb(-1) of integrated luminosity at the centre-of-mass energies of 7, 8, and 13 TeV, respectively, the decay Lambda(0)(b) -> chi(c1)(3872)pK(-) with chi(c1)(3872) -> J/psi pi(+)pi(-) is observed for the first time. The significance of the observed signal is in excess of seven standard deviations. It is found that (58 +/- 15)% of the decays proceed via the two-body intermediate state chi(c1)(3872)Lambda(1520). The branching fraction with respect to that of the Lambda(0)(b) -> psi(2S)pK(-) decay mode, where the psi(2S) meson is reconstructed in the J/psi pi(+)pi(-) final state, is measured to be:B(Lambda(0)(b) -> chi(c1)(3872)pK(-))/B (Lambda(0)(b) -> psi(2S)pK(-)) x B(chi(c1)(3872) -> J/psi pi(+)pi(-))/B(psi(2S) -> J/psi pi(+)pi(-)) = (5.4 +/- 1.1 +/- 0.2) x 10^(-2),where the first uncertainty is statistical and the second is systematic.

Aaij, R., Abellan Beteta, C., Ackernley, T., Adeva, B., Adinolfi, M., Aidala, C., et al. (2019). Observation of the Λb0→χc1 (3872) pK− decay. JOURNAL OF HIGH ENERGY PHYSICS, 2019(9) [10.1007/JHEP09(2019)028].

Observation of the Λb0→χc1 (3872) pK− decay

Calvi M.;Carniti P.;Fazzini D.;Gotti C.;Martinazzoli L.;Martinelli M.;Meloni S.;Petruzzo M.;
2019

Abstract

Using proton-proton collision data, collected with the LHCb detector and corresponding to 1.0, 2.0 and 1.9 fb(-1) of integrated luminosity at the centre-of-mass energies of 7, 8, and 13 TeV, respectively, the decay Lambda(0)(b) -> chi(c1)(3872)pK(-) with chi(c1)(3872) -> J/psi pi(+)pi(-) is observed for the first time. The significance of the observed signal is in excess of seven standard deviations. It is found that (58 +/- 15)% of the decays proceed via the two-body intermediate state chi(c1)(3872)Lambda(1520). The branching fraction with respect to that of the Lambda(0)(b) -> psi(2S)pK(-) decay mode, where the psi(2S) meson is reconstructed in the J/psi pi(+)pi(-) final state, is measured to be:B(Lambda(0)(b) -> chi(c1)(3872)pK(-))/B (Lambda(0)(b) -> psi(2S)pK(-)) x B(chi(c1)(3872) -> J/psi pi(+)pi(-))/B(psi(2S) -> J/psi pi(+)pi(-)) = (5.4 +/- 1.1 +/- 0.2) x 10^(-2),where the first uncertainty is statistical and the second is systematic.
Articolo in rivista - Articolo scientifico
B physics; Branching fraction; Exotics; Hadron-Hadron scattering (experiments); LHCb; LHC Collider; Flavour Physics; Particle Physics
English
Aaij, R., Abellan Beteta, C., Ackernley, T., Adeva, B., Adinolfi, M., Aidala, C., et al. (2019). Observation of the Λb0→χc1 (3872) pK− decay. JOURNAL OF HIGH ENERGY PHYSICS, 2019(9) [10.1007/JHEP09(2019)028].
Aaij, R; Abellan Beteta, C; Ackernley, T; Adeva, B; Adinolfi, M; Aidala, C; Aiola, S; Ajaltouni, Z; Akar, S; Albicocco, P; Albrecht, J; Alessio, F; Alexander, M; Alfonso Albero, A; Alkhazov, G; Alvarez Cartelle, P; Alves, A; Amato, S; Amhis, Y; An, L; Anderlini, L; Andreassi, G; Andreotti, M; Andrews, J; Archilli, F; Arnau Romeu, J; Artamonov, A; Artuso, M; Arzymatov, K; Aslanides, E; Atzeni, M; Audurier, B; Bachmann, S; Back, J; Baker, S; Balagura, V; Baldini, W; Baranov, A; Barlow, R; Barsuk, S; Barter, W; Bartolini, M; Baryshnikov, F; Bassi, G; Batozskaya, V; Batsukh, B; Battig, A; Battista, V; Bay, A; Becker, M; Bedeschi, F; Bediaga, I; Beiter, A; Bel, L; Belavin, V; Belin, S; Beliy, N; Bellee, V; Belous, K; Belyaev, I; Bencivenni, G; Ben-Haim, E; Benson, S; Beranek, S; Berezhnoy, A; Bernet, R; Berninghoff, D; Bertholet, E; Bertolin, A; Betancourt, C; Betti, F; Bettler, M; Bezshyiko, I; Bhasin, S; Bhom, J; Bieker, M; Bifani, S; Billoir, P; Birnkraut, A; Bizzeti, A; Bjorn, M; Blago, M; Blake, T; Blanc, F; Blusk, S; Bobulska, D; Bocci, V; Boente Garcia, O; Boettcher, T; Boldyrev, A; Bondar, A; Bondar, N; Borghi, S; Borisyak, M; Borsato, M; Borsuk, J; Boubdir, M; Bowcock, T; Bozzi, C; Braun, S; Brea Rodriguez, A; Brodski, M; Brodzicka, J; Brossa Gonzalo, A; Brundu, D; Buchanan, E; Buonaura, A; Burr, C; Bursche, A; Butter, J; Buytaert, J; Byczynski, W; Cadeddu, S; Cai, H; Calabrese, R; Cali, S; Calladine, R; Calvi, M; Calvo Gomez, M; Camboni, A; Campana, P; Campora Perez, D; Capriotti, L; Carbone, A; Carboni, G; Cardinale, R; Cardini, A; Carniti, P; Carvalho Akiba, K; Casais Vidal, A; Casse, G; Cattaneo, M; Cavallero, G; Cenci, R; Cerasoli, J; Chapman, M; Charles, M; Charpentier, P; Chatzikonstantinidis, G; Chefdeville, M; Chekalina, V; Chen, C; Chen, S; Chernov, A; Chitic, S; Chobanova, V; Chrzaszcz, M; Chubykin, A; Ciambrone, P; Cicala, M; Cid Vidal, X; Ciezarek, G; Cindolo, F; Clarke, P; Clemencic, M; Cliff, H; Closier, J; Cobbledick, J; Coco, V; Coelho, J; Cogan, J; Cogneras, E; Cojocariu, L; Collins, P; Colombo, T; Comerma-Montells, A; Contu, A; Cooke, N; Coombs, G; Coquereau, S; Corti, G; Costa Sobral, C; Couturier, B; Cowan, G; Craik, D; Crocombe, A; Cruz Torres, M; Currie, R; Da Silva, C; Dall'Occo, E; Dalseno, J; D'Ambrosio, C; Danilina, A; D'Argent, P; Davis, A; De Aguiar Francisco, O; De Bruyn, K; De Capua, S; De Cian, M; De Miranda, J; De Paula, L; De Serio, M; De Simone, P; de Vries, J; Dean, C; Dean, W; Decamp, D; Del Buono, L; Delaney, B; Dembinski, H; Demmer, M; Dendek, A; Denysenko, V; Derkach, D; Deschamps, O; Desse, F; Dettori, F; Dey, B; Di Canto, A; Di Nezza, P; Didenko, S; Dijkstra, H; Dordei, F; Dorigo, M; dos Reis, A; Dosil Suarez, A; Douglas, L; Dovbnya, A; Dreimanis, K; Dudek, M; Dufour, L; Dujany, G; Durante, P; Durham, J; Dutta, D; Dzhelyadin, R; Dziewiecki, M; Dziurda, A; Dzyuba, A; Easo, S; Egede, U; Egorychev, V; Eidelman, S; Eisenhardt, S; Eitschberger, U; Ekelhof, R; Ek-In, S; Eklund, L; Ely, S; Ene, A; Escher, S; Esen, S; Evans, T; Falabella, A; Fan, J; Farley, N; Farry, S; Fazzini, D; Feo, M; Fernandez Declara, P; Fernandez Prieto, A; Ferrari, F; Ferreira Lopes, L; Ferreira Rodrigues, F; Ferreres Sole, S; Ferro-Luzzi, M; Filippov, S; Fini, R; Fiorini, M; Firlej, M; Fischer, K; Fitzpatrick, C; Fiutowski, T; Fleuret, F; Fontana, M; Fontanelli, F; Forty, R; Franco Lima, V; Franco Sevilla, M; Frank, M; Frei, C; Friday, D; Fu, J; Funk, W; Gabriel, E; Gallas Torreira, A; Galli, D; Gallorini, S; Gambetta, S; Gan, Y; Gandelman, M; Gandini, P; Gao, Y; Garcia Martin, L; Garcia Pardinas, J; Garcia Plana, B; Garcia Rosales, F; Garra Tico, J; Garrido, L; Gascon, D; Gaspar, C; Gazzoni, G; Gerick, D; Gersabeck, E; Gersabeck, M; Gershon, T; Gerstel, D; Ghez, P; Gibson, V; Gioventu, A; Girard, O; Gironella Gironell, P; Giubega, L; Gizdov, K; Gligorov, V; Gobel, C; Golubkov, D; Golutvin, A; Gomes, A; Gorelov, I; Gotti, C; Govorkova, E; Grabowski, J; Graciani Diaz, R; Grammatico, T; Granado Cardoso, L; Grauges, E; Graverini, E; Graziani, G; Grecu, A; Greim, R; Griffith, P; Grillo, L; Gruber, L; Gruberg Cazon, B; Gu, C; Gushchin, E; Guth, A; Guz, Y; Gys, T; Hadavizadeh, T; Hadjivasiliou, C; Haefeli, G; Haen, C; Haines, S; Hamilton, P; Han, Q; Han, X; Hancock, T; Hansmann-Menzemer, S; Harnew, N; Harrison, T; Hasse, C; Hatch, M; He, J; Hecker, M; Heijhoff, K; Heinicke, K; Heister, A; Hennessy, K; Henry, L; Hess, M; Heuel, J; Hicheur, A; Hidalgo Charman, R; Hill, D; Hilton, M; Hopchev, P; Hu, J; Hu, W; Huang, W; Huard, Z; Hulsbergen, W; Humair, T; Hunter, R; 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, B; Jawahery, A; Jiang, F; John, M; Johnson, D; Jones, C; Jost, B; Jurik, N; Kandybei, S; Karacson, M; Kariuki, J; Karodia, S; Kazeev, N; Kecke, M; Keizer, F; Kelsey, M; Kenzie, M; Ketel, T; Khanji, B; Kharisova, A; Khurewathanakul, C; Kim, K; Kirn, T; Kirsebom, V; Klaver, S; Klimaszewski, K; Kodassery Padmalayammadam, P; Koliiev, S; Kondybayeva, A; Konoplyannikov, A; Kopciewicz, P; Kopecna, R; Koppenburg, P; Kostiuk, I; Kot, O; Kotriakhova, S; Kozeiha, M; Kravchuk, L; Krawczyk, R; Kreps, M; Kress, F; Kretzschmar, S; Krokovny, P; Krupa, W; Krzemien, W; Kucewicz, W; Kucharczyk, M; Kudryavtsev, V; Kuindersma, H; Kunde, G; Kuonen, A; Kvaratskheliya, T; Lacarrere, D; Lafferty, G; Lai, A; Lancierini, D; Lane, J; Lanfranchi, G; Langenbruch, C; Latham, T; Lazzari, F; Lazzeroni, C; Le Gac, R; Lefevre, R; Leflat, A; Lemaitre, F; Leroy, O; Lesiak, T; Leverington, B; Li, H; Li, P; Li, X; Li, Y; Li, Z; Liang, X; Likhomanenko, T; Lindner, R; Lionetto, F; Lisovskyi, V; Liu, G; Liu, X; Loh, D; Loi, A; Lomba Castro, J; Longstaff, I; Lopes, J; Loustau, G; Lovell, G; Lucchesi, D; Lucio Martinez, M; Luo, Y; Lupato, A; Luppi, E; Lupton, O; Lusiani, A; Lyu, X; Maccolini, S; Machefert, F; Maciuc, F; Macko, V; Mackowiak, P; Maddrell-Mander, S; Madhan Mohan, L; Maev, O; Maevskiy, A; Maguire, K; Maisuzenko, D; Majewski, M; Malde, S; Malecki, B; Malinin, A; Maltsev, T; Malygina, H; Manca, G; Mancinelli, G; Manuzzi, D; Marangotto, D; Maratas, J; Marchand, J; Marconi, U; Mariani, S; Marin Benito, C; Marinangeli, M; Marino, P; Marks, J; Marshall, P; Martellotti, G; Martinazzoli, L; Martinelli, M; Martinez Santos, D; Martinez Vidal, F; Massafferri, A; Materok, M; Matev, R; Mathad, A; Mathe, Z; Matiunin, V; Matteuzzi, C; Mattioli, K; Mauri, A; Maurice, E; Mccann, M; Mcconnell, L; Mcnab, A; Mcnulty, R; Mead, J; Meadows, B; Meaux, C; Meinert, N; Melnychuk, D; Meloni, S; Merk, M; Merli, A; Michielin, E; Milanes, D; Millard, E; Minard, M; Mineev, O; Minzoni, L; Mitchell, S; Mitreska, B; Mitzel, D; Modden, A; Mogini, A; Moise, R; Mombacher, T; Monroy, I; Monteil, S; Morandin, M; Morello, G; Morello, M; Moron, J; Morris, A; Morris, A; Mountain, R; Mu, H; Muheim, F; Mukherjee, M; Mulder, M; Muller, D; Muller, J; Muller, K; Muller, V; Murphy, C; Murray, D; Naik, P; Nakada, T; Nandakumar, R; Nandi, A; Nanut, T; Nasteva, I; Needham, M; Neri, N; Neubert, S; Neufeld, N; Newcombe, R; Nguyen, T; Nguyen-Mau, C; Niel, E; Nieswand, S; Nikitin, N; Nolte, N; Oblakowska-Mucha, A; Obraztsov, V; Ogilvy, S; O'Hanlon, D; Oldeman, R; Onderwater, C; Osborn, J; Ossowska, A; Otalora Goicochea, J; Ovsiannikova, T; Owen, P; Oyanguren, A; Pais, P; Pajero, T; Palano, A; Palutan, M; Panshin, G; Papanestis, A; Pappagallo, M; Pappalardo, L; Parker, W; Parkes, C; Passaleva, G; Pastore, A; Patel, M; Patrignani, C; Pearce, A; Pellegrino, A; Penso, G; Pepe Altarelli, M; 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; Pinci, D; Pinzino, J; Pisani, F; Piucci, A; Placinta, V; Playfer, S; Plews, J; Plo Casasus, M; Polci, F; Poli Lener, M; Poliakova, M; Poluektov, A; Polukhina, N; Polyakov, I; Polycarpo, E; Pomery, G; Ponce, S; Popov, A; Popov, D; Poslavskii, S; Promberger, L; Prouve, C; Pugatch, V; Puig Navarro, A; Pullen, H; Punzi, G; Qian, W; Qin, J; Quagliani, R; Quintana, B; Raab, N; Rachwal, B; Rademacker, J; Rama, M; Ramos Pernas, M; Rangel, M; Ratnikov, F; Raven, G; Ravonel Salzgeber, M; Reboud, M; Redi, F; Reichert, S; Reiss, F; Remon Alepuz, C; Ren, Z; Renaudin, V; Ricciardi, S; Richards, S; Rinnert, K; Robbe, P; Robert, A; Rodrigues, A; Rodrigues, E; Rodriguez Lopez, J; Roehrken, M; Roiser, S; Rollings, A; Romanovskiy, V; Romero Lamas, M; Romero Vidal, A; Roth, J; Rotondo, M; Rudolph, M; Ruf, T; Ruiz Vidal, J; Ryzka, J; Saborido Silva, J; Sagidova, N; Saitta, B; Sanchez Gras, C; Sanchez Mayordomo, C; Sanmartin Sedes, B; Santacesaria, R; Santamarina Rios, C; Santangelo, P; Santimaria, M; Santovetti, E; Sarpis, G; Sarti, A; Satriano, C; Satta, A; Saur, M; Savrina, D; Scantlebury Smead, L; Schael, S; Schellenberg, M; Schiller, M; Schindler, H; Schmelling, M; Schmelzer, T; Schmidt, B; Schneider, O; Schopper, A; Schreiner, H; Schubiger, M; Schulte, S; Schune, M; Schwemmer, R; Sciascia, B; Sciubba, A; Semennikov, A; Sergi, A; Serra, N; Serrano, J; Sestini, L; Seuthe, A; Seyfert, P; Shapkin, M; Shears, T; Shekhtman, L; Shevchenko, V; Shmanin, E; Shupperd, J; Siddi, B; Silva Coutinho, R; Silva de Oliveira, L; Simi, G; Simone, S; Skiba, I; Skidmore, N; Skwarnicki, T; Slater, M; Smeaton, J; Smith, E; Smith, I; Smith, M; Soares, M; Soares Lavra, L; Sokoloff, M; Soler, F; Souza De Paula, B; Spaan, B; Spadaro Norella, E; 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, M; Straticiuc, M; Straumann, U; Strokov, S; Sun, J; Sun, L; Sun, Y; Swientek, K; Szabelski, A; Szumlak, T; Szymanski, M; Taneja, S; Tang, Z; Tekampe, T; Tellarini, G; Teubert, F; Thomas, E; Thomson, K; Tilley, M; Tisserand, V; T'Jampens, S; Tobin, M; Tolk, S; Tomassetti, L; Tonelli, D; Tou, D; Tournefier, E; Traill, M; Tran, M; 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 Beuzekom, M; Van Hecke, H; van Herwijnen, E; Van Hulse, C; van Tilburg, J; van Veghel, M; Vazquez Gomez, R; Vazquez Regueiro, P; Vazquez Sierra, C; Vecchi, S; Velthuis, J; Veltri, M; Venkateswaran, A; Vernet, M; Veronesi, M; Vesterinen, M; Viana Barbosa, J; Vieira, D; Vieites Diaz, M; Viemann, H; Vilasis-Cardona, X; Vitkovskiy, A; Volkov, V; Vollhardt, A; Vom Bruch, D; Voneki, B; Vorobyev, A; Vorobyev, V; Voropaev, N; Waldi, R; Walsh, J; Wang, J; Wang, J; Wang, M; Wang, Y; Wang, Z; Ward, D; Wark, H; Watson, N; Websdale, D; Weiden, A; Weisser, C; Westhenry, B; White, D; Whitehead, M; Wiedner, D; Wilkinson, G; Wilkinson, M; Williams, I; Williams, M; Williams, M; Williams, T; Wilson, F; Winn, M; Wislicki, W; Witek, M; Wormser, G; Wotton, S; Wu, H; Wyllie, K; Xiang, Z; 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, L; Yin, H; Yu, J; Yuan, X; Yushchenko, O; Zarebski, K; Zavertyaev, M; Zdybal, M; Zeng, M; Zhang, D; Zhang, L; Zhang, S; Zhang, W; Zhang, Y; Zhelezov, A; Zheng, Y; Zhou, X; Zhou, Y; Zhu, X; Zhukov, V; Zonneveld, J; Zucchelli, S
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