LHCb CollaborationAaij, R.Adeva, B.Adinolfi, M.Affolder, A.Ajaltouni, Z.Akar, S.Albrecht, J.Alessio, F.Alexander, M.Ali, S.Alkhazov, G.Cartelle, P. AlvarezAmato, S.Amerio, S.Amhis, Y.An, L.Anderlini, L.Anderson, J.Andreassi, G.Andreotti, M.Andrews, J. E.Appleby, R. B.Gutierrez, O. AquinesArchilli, F.D'Argent, P.Artamonov, A.Artuso, M.Aslanides, E.Auriemma, G.Baalouch, M.Bachmann, S.Back, J. J.Badalov, A.Baesso, C.Baldini, W.Barlow, R. J.Barschel, C.Barsuk, S.Barter, W.Batozskaya, V.Battista, V.Bay, A.Beaucourt, L.Beddow, J.Bedeschi, F.Bediaga, I.Bel, L. J.Bellee, V.Belloli, N.Belyaev, I.Ben-Haim, E.Bencivenni, G.Benson, S.Benton, J.Berezhnoy, A.Bernet, R.Bertolin, A.Bettler, M. -O.Van Beuzekom, M.Bien, A.Bifani, S.Billoir, P.Bird, T.Birnkraut, A.Bizzeti, A.Blake, T.Blanc, F.Blouw, J.Blusk, S.Bocci, V.Bondar, A.Bondar, N.Bonivento, W.Borghi, S.Borsato, M.Bowcock, T. J. V.Bowen, E.Bozzi, C.Braun, S.Britsch, M.Britton, T.Brodzicka, J.Brook, N. H.Bursche, A.Buytaert, J.Cadeddu, S.Calabrese, R.Calvi, M.Calvo Gomez, M.Campana, P.Perez, D. CamporaCapriotti, L.Carbone, A.Carboni, G.Cardinale, R.Cardini, A.Carniti, P.Carson, L.Akiba, K. CarvalhoCasse, G.Cassina, L.Garcia, L. CastilloCattaneo, M.Cauet, Ch.Cavallero, G.Cenci, R.Charles, M.Charpentier, Ph.Chefdeville, M.Chen, S.Cheung, S. -F.Chiapolini, N.Chrzaszcz, M.Vidal, X. CidCiezarek, G.Clarke, P. E. L.Clemencic, M.Cliff, H. V.Closier, J.Coco, V.Cogan, J.Cogneras, E.Cogoni, V.Cojocariu, L.Collazuol, G.Collins, P.Comerma-Montells, A.Contu, A.Cook, A.Coombes, M.Coquereau, S.Corti, G.Corvo, M.Couturier, B.Cowan, G. A.Craik, D. C.Crocombe, A.Cruz Torres, M.Cunliffe, S.Currie, R.D'Ambrosio, C.Dall'Occo, E.Dalseno, J.David, P. N. Y.Davis, A.De Bruyn, K.De Capua, S.De Cian, M.De Miranda, J. M.De Paula, L.De Simone, P.Dean, C. -T.Decamp, D.Deckenhoff, M.Del Buono, L.Deleage, N.Demmer, M.Derkach, D.Deschamps, O.Dettori, F.Dey, B.Di Canto, A.Di Ruscio, F.Dijkstra, H.Donleavy, S.Dordei, F.Dorigo, M.Dosil Suarez, A.Dossett, D.Dovbnya, A.Dreimanis, K.Dufour, L.Dujany, G.Dupertuis, F.Durante, P.Dzhelyadin, R.Dziurda, A.Dzyuba, A.Easo, S.Egede, U.Egorychev, V.Eidelman, S.Eisenhardt, S.Eitschberger, U.Ekelhof, R.Eklund, L.El Rifai, I.Elsasser, Ch.Ely, S.Esen, S.Evans, H. M.Evans, T.Falabella, A.Faerber, C.Farley, N.Farry, S.Fay, R.Ferguson, D.Fernandez Albor, V.Ferrari, F.Ferreira Rodrigues, F.Ferro-Luzzi, M.Filippov, S.Fiore, M.Fiorini, M.Firlej, M.Fitzpatrick, C.Fiutowski, T.Fohl, K.Fol, P.Fontana, M.Fontanelli, F.Forty, R.Francisco, O.Frank, M.Frei, C.Frosini, M.Fu, J.Furfaro, E.Gallas Torreira, A.Galli, D.Gallorini, S.Gambetta, S.Gandelman, M.Gandini, P.Gao, Y.Garcia Pardinas, J.Tico, J. GarraGarrido, L.Gascon, D.Gaspar, C.Gauld, R.Gavardi, L.Gazzoni, G.Geraci, A.Gerick, D.Gersabeck, E.Gersabeck, M.Gershon, T.Ghez, Ph.Gianelle, A.Giani, S.Gibson, V.Girard, O. G.Giubega, L.Gligorov, V. V.Goebel, C.Golubkov, D.Golutvin, A.Gomes, A.Gotti, C.Grabalosa Gandara, M.Graciani Diaz, R.Cardoso, L. A. GranadoGrauges, E.Graverini, E.Graziani, G.Grecu, A.Greening, E.Gregson, S.Griffith, P.Grillo, L.Gruenberg, O.Gui, B.Gushchin, E.Guz, Yu.Gys, T.Hadavizadeh, T.Hadjivasiliou, C.Haefeli, G.Haen, C.Haines, S. C.Hall, S.Hamilton, B.Han, X.Hansmann-Menzemer, S.Harnew, N.Harnew, S. T.Harrison, J.He, J.Head, T.Heijne, V.Hennessy, K.Henrard, P.Henry, L.Hernando Morata, J. A.Van Herwijnen, E.Hess, M.Hicheur, A.Hill, D.Hoballah, M.Hombach, C.Hulsbergen, W.Humair, T.Hussain, N.Hutchcroft, D.Hynds, D.Idzik, M.Ilten, P.Jacobsson, R.Jaeger, A.Jalocha, J.Jans, E.Jawahery, A.Jing, F.John, M.Johnson, D.Jones, C. R.Joram, C.Jost, B.Jurik, N.Kandybei, S.Kanso, W.Karacson, M.Karbach, T. M.Karodia, S.Kelsey, M.Kenyon, I. R.Kenzie, M.Ketel, T.Khanji, B.Khurewathanakul, C.Klaver, S.Klimaszewski, K.Kochebina, O.Kolpin, M.Komarov, I.Koopman, R. F.Koppenburg, P.Kozeiha, M.Kravchuk, L.Kreplin, K.Kreps, M.Krocker, G.Krokovny, P.Kruse, F.Krzemien, W.Kucewicz, W.Kucharczyk, M.Kudryavtsev, V.Kuonen, A. K.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.Lefevre, R.Leflat, A.Lefrancois, J.Lemos Cid, E.Leroy, O.Lesiak, T.Leverington, B.Li, Y.Likhomanenko, T.Liles, M.Lindner, R.Linn, C.Lionetto, F.Liu, B.Liu, X.Loh, D.Longstaff, I.Lopes, J. H.Lucchesi, D.Lucio Martinez, M.Luo, H.Lupato, A.Luppi, E.Lupton, O.Lusardi, N.Machefert, F.Maciuc, F.Maev, O.Maguire, K.Malde, S.Malinin, A.Manca, G.Mancinelli, G.Manning, P.Mapelli, A.Maratas, J.Marchand, J. 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P.Soomro, F.Souza, D.Souza De Paula, B.Spaan, B.Spradlin, P.Sridharan, S.Stagni, F.Stahl, M.Stahl, S.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.Swientek, S.Syropoulos, V.Szczekowski, M.Szczypka, P.Szumlak, T.T'Jampens, S.Tayduganov, A.Tekampe, T.Teklishyn, M.Tellarini, G.Teubert, F.Thomas, C.Thomas, E.Van Tilburg, J.Tisserand, V.Tobin, M.Todd, J.Tolk, S.Tomassetti, L.Tonelli, D.Topp-Joergensen, S.Torr, N.Tournefier, E.Tourneur, S.Trabelsi, K.Tran, M. T.Tresch, M.Trisovic, A.Tsaregorodtsev, A.Tsopelas, P.Tuning, N.Ukleja, A.Ustyuzhanin, A.Uwer, U.Vacca, C.Vagnoni, V.Valenti, G.Vallier, A.Vazquez Gomez, R.Vazquez Regueiro, P.Vazquez Sierra, C.Vecchi, S.Velthuis, J. J.Veltri, M.Veneziano, G.Vesterinen, M.Viaud, B.Vieira, D.Vieites Diaz, M.Vilasis-Cardona, X.Vollhardt, A.Volyanskyy, D.Voong, D.Vorobyev, A.Vorobyev, V.Voss, C.De Vries, J. A.Waldi, R.Wallace, C.Wallace, R.Walsh, J.Wandernoth, S.Wang, J.Ward, D. R.Watson, N. K.Websdale, D.Weiden, A.Whitehead, M.Wilkinson, G.Wilkinson, M.Williams, M.Williams, M. P.Williams, T.Wilson, F. F.Wimberley, J.Wishahi, J.Wislicki, W.Witek, M.Wormser, G.Wotton, S. A.Wright, S.Wyllie, K.Xie, Y.Xu, Z.Yang, Z.Yu, J.Yuan, X.Yushchenko, O.Zangoli, M.Zavertyaev, M.Zhang, L.Zhang, Y.Zhelezov, A.Zhokhov, A.Zhong, L.Zucchelli, S.2016-07-192016-07-192016-07-192016-03-0110.1007/Jhep03(2016)040https://infoscience.epfl.ch/handle/20.500.14299/127430WOS:000372307900001The B (s) (0) -> aEuro parts per thousand J/psi I center dot I center dot decay is observed in pp collision data corresponding to an integrated luminosity of 3 fb(-1) recorded by the LHCb detector at centre-of-mass energies of 7 TeV and 8 TeV. This is the first observation of this decay channel, with a statistical significance of 15 standard deviations. The mass of the B (s) (0) meson is measured to be 5367.08 +/- 0.38 +/- 0.15 MeV/c(2). The branching fraction ratio a"not sign(B (s) (0) -> aEuro parts per thousand J/psi I center dot I center dot)/a"not sign(B (s) (0) -> aEuro parts per thousand J/psi I center dot) is measured to be 0.0115 +/- A 0.0012 (-aEuro parts per thousand 0.0009) (+ 0.0005) . In both cases, the first uncertainty is statistical and the second is systematic. No evidence for non-resonant B (s) (0) -> aEuro parts per thousand J/psi I center dot K (+) K (-) or B (s) (0) -> aEuro parts per thousand J/psi K (+) K (-) K (+) K (-) decays is found.B physicsBranching fractionHadron-Hadron scatteringQCDSpectroscopytext::journal::journal article::research article