Cargando…

Observation of a resonance in $B^+ \to K^+ \mu^+\mu^-$ decays at low recoil

A broad peaking structure is observed in the dimuon spectrum of $B^+ \to K^+ \mu^+\mu^-$ decays in the kinematic region where the kaon has a low recoil against the dimuon system. The structure is consistent with interference between the $B^+ \to K^+ \mu^+\mu^-$ decay and a resonance and has a statis...

Descripción completa

Detalles Bibliográficos
Autores principales: Aaij, R, Adeva, B, Adinolfi, M, Adrover, C, Affolder, A, Ajaltouni, Z, Albrecht, J, Alessio, F, Alexander, M, Ali, S, Alkhazov, G, Alvarez Cartelle, P, Alves Jr, A A, Amato, S, Amerio, S, Amhis, Y, Anderlini, L, Anderson, J, Andreassen, R, Andrews, J E, Appleby, R B, Aquines Gutierrez, O, Archilli, F, Artamonov, A, Artuso, M, Aslanides, E, Auriemma, G, Baalouch, M, Bachmann, S, Back, J J, Baesso, C, Balagura, V, Baldini, W, Barlow, R J, Barschel, C, Barsuk, S, Barter, W, Bauer, Th, Bay, A, Beddow, J, Bedeschi, F, Bediaga, I, Belogurov, S, Belous, K, Belyaev, I, Ben-Haim, E, Bencivenni, G, Benson, S, Benton, J, Berezhnoy, A, Bernet, R, Bettler, M -O, van Beuzekom, M, Bien, A, Bifani, S, Bird, T, Bizzeti, A, Bjørnstad, P M, Blake, T, Blanc, F, Blouw, J, Blusk, S, Bocci, V, Bondar, A, Bondar, N, Bonivento, W, Borghi, S, Borgia, A, Bowcock, T J V, Bowen, E, Bozzi, C, Brambach, T, van den Brand, J, Bressieux, J, Brett, D, Britsch, M, Britton, T, Brook, N H, Brown, H, Burducea, I, Bursche, A, Busetto, G, Buytaert, J, Cadeddu, S, Callot, O, Calvi, M, Calvo Gomez, M, Camboni, A, Campana, P, Campora Perez, D, Carbone, A, Carboni, G, Cardinale, R, Cardini, A, Carranza-Mejia, H, Carson, L, Carvalho Akiba, K, Casse, G, Castillo Garcia, L, Cattaneo, M, Cauet, Ch, Cenci, R, Charles, M, Charpentier, Ph, Chen, P, Chiapolini, N, Chrzaszcz, M, Ciba, K, Cid Vidal, X, Ciezarek, G, Clarke, P E L, Clemencic, M, Cliff, H V, Closier, J, Coca, C, Coco, V, Cogan, J, Cogneras, E, Collins, P, Comerma-Montells, A, Contu, A, Cook, A, Coombes, M, Coquereau, S, Corti, G, Couturier, B, Cowan, G A, Cowie, E, Craik, D C, Cunliffe, S, Currie, R, D'Ambrosio, C, David, P, David, P N Y, Davis, A, De Bonis, I, De Bruyn, K, De Capua, S, De Cian, M, De Miranda, J M, De Paula, L, De Silva, W, De Simone, P, Decamp, D, Deckenhoff, M, Del Buono, L, Déléage, N, Derkach, D, Deschamps, O, Dettori, F, Di Canto, A, Dijkstra, H, Dogaru, M, Donleavy, S, Dordei, F, Dosil Suárez, A, Dossett, D, Dovbnya, A, Dupertuis, F, Durante, P, Dzhelyadin, R, Dziurda, A, Dzyuba, A, Easo, S, Egede, U, Egorychev, V, Eidelman, S, van Eijk, D, Eisenhardt, S, Eitschberger, U, Ekelhof, R, Eklund, L, El Rifai, I, Elsasser, Ch, Falabella, A, Färber, C, Fardell, G, Farinelli, C, Farry, S, Ferguson, D, Fernandez Albor, V, Ferreira Rodrigues, F, Ferro-Luzzi, M, Filippov, S, Fiore, M, Fitzpatrick, C, Fontana, M, Fontanelli, F, Forty, R, Francisco, O, Frank, M, Frei, C, Frosini, M, Furcas, S, Furfaro, E, Gallas Torreira, A, Galli, D, Gandelman, M, Gandini, P, Gao, Y, Garofoli, J, Garosi, P, Garra Tico, J, Garrido, L, Gaspar, C, Gauld, R, Gersabeck, E, Gersabeck, M, Gershon, T, Ghez, Ph, Gibson, V, Giubega, L, Gligorov, V V, Göbel, C, Golubkov, D, Golutvin, A, Gomes, A, Gorbounov, P, Gordon, H, Gotti, C, Grabalosa Gándara, M, Graciani Diaz, R, Granado Cardoso, L A, Graugés, E, Graziani, G, Grecu, A, Greening, E, Gregson, S, Griffith, P, Grünberg, O, Gui, B, Gushchin, E, Guz, Yu, Gys, T, Hadjivasiliou, C, Haefeli, G, Haen, C, Haines, S C, Hall, S, Hamilton, B, Hampson, T, Hansmann-Menzemer, S, Harnew, N, Harnew, S T, Harrison, J, Hartmann, T, He, J, Head, T, Heijne, V, Hennessy, K, Henrard, P, Hernando Morata, J A, van Herwijnen, E, Hess, M, Hicheur, A, Hicks, E, Hill, D, Hoballah, M, Hombach, C, Hopchev, P, Hulsbergen, W, Hunt, P, Huse, T, Hussain, N, Hutchcroft, D, Hynds, D, Iakovenko, V, Idzik, M, Ilten, P, Jacobsson, R, Jaeger, A, Jans, E, Jaton, P, Jawahery, A, Jing, F, John, M, Johnson, D, Jones, C R, Joram, C, Jost, B, Kaballo, M, Kandybei, S, Kanso, W, Karacson, M, Karbach, T M, Kenyon, I R, Ketel, T, Keune, A, Khanji, B, Kochebina, O, Komarov, I, Koopman, R F, Koppenburg, P, Korolev, M, Kozlinskiy, A, Kravchuk, L, Kreplin, K, Kreps, M, Krocker, G, Krokovny, P, Kruse, F, Kucharczyk, M, Kudryavtsev, V, Kurek, K, Kvaratskheliya, T, La Thi, V N, Lacarrere, D, Lafferty, G, Lai, A, Lambert, D, Lambert, R W, Lanciotti, E, Lanfranchi, G, Langenbruch, C, Latham, T, Lazzeroni, C, Le Gac, R, van Leerdam, J, Lees, J -P, Lefèvre, R, Leflat, A, Lefrançois, J, Leo, S, Leroy, O, Lesiak, T, Leverington, B, Li, Y, Li Gioi, L, Liles, M, Lindner, R, Linn, C, Liu, B, Liu, G, Lohn, S, Longstaff, I, Lopes, J H, Lopez-March, N, Lu, H, Lucchesi, D, Luisier, J, Luo, H, Machefert, F, Machikhiliyan, I V, Maciuc, F, Maev, O, Malde, S, Manca, G, Mancinelli, G, Maratas, J, Marconi, U, Marino, P, Märki, R, Marks, J, Martellotti, G, Martens, A, Martín Sánchez, A, Martinelli, M, Martinez Santos, D, Martins Tostes, D, Martynov, A, Massafferri, A, Matev, R, Mathe, Z, Matteuzzi, C, Maurice, E, Mazurov, A, McCarthy, J, McNab, A, McNulty, R, McSkelly, B, Meadows, B, Meier, F, Meissner, M, Merk, M, Milanes, D A, Minard, M -N, Molina Rodriguez, J, Monteil, S, Moran, D, Morawski, P, Mordà, A, Morello, M J, Mountain, R, Mous, I, Muheim, F, Müller, K, Muresan, R, Muryn, B, Muster, B, Naik, P, Nakada, T, Nandakumar, R, Nasteva, I, Needham, M, Neubert, S, Neufeld, N, Nguyen, A D, Nguyen, T D, Nguyen-Mau, C, Nicol, M, Niess, V, Niet, R, Nikitin, N, Nikodem, T, Nomerotski, A, Novoselov, A, Oblakowska-Mucha, A, Obraztsov, V, Oggero, S, Ogilvy, S, Okhrimenko, O, Oldeman, R, Orlandea, M, Otalora Goicochea, J M, Owen, P, Oyanguren, A, Pal, B K, Palano, A, Palczewski, T, Palutan, M, Panman, J, Papanestis, A, Pappagallo, M, Parkes, C, Parkinson, C J, Passaleva, G, Patel, G D, Patel, M, Patrick, G N, Patrignani, C, Pavel-Nicorescu, C, Pazos Alvarez, A, Pellegrino, A, Penso, G, Pepe Altarelli, M, Perazzini, S, Perez Trigo, E, Pérez-Calero Yzquierdo, A, Perret, P, Perrin-Terrin, M, Pescatore, L, Pesen, E, Petridis, K, Petrolini, A, Phan, A, Picatoste Olloqui, E, Pietrzyk, B, Pilař, T, Pinci, D, Playfer, S, Plo Casasus, M, Polci, F, Polok, G, Poluektov, A, Polycarpo, E, Popov, A, Popov, D, Popovici, B, Potterat, C, Powell, A, Prisciandaro, J, Pritchard, A, Prouve, C, Pugatch, V, Puig Navarro, A, Punzi, G, Qian, W, Rademacker, J H, Rakotomiaramanana, B, Rangel, M S, Raniuk, I, Rauschmayr, N, Raven, G, Redford, S, Reid, M M, dos Reis, A C, Ricciardi, S, Richards, A, Rinnert, K, Rives Molina, V, Roa Romero, D A, Robbe, P, Roberts, D A, Rodrigues, E, Rodriguez Perez, P, Roiser, S, Romanovsky, V, Romero Vidal, A, Rouvinet, J, Ruf, T, Ruffini, F, Ruiz, H, Ruiz Valls, P, Sabatino, G, Saborido Silva, J J, Sagidova, N, Sail, P, Saitta, B, Salustino Guimaraes, V, Sanmartin Sedes, B, Sannino, M, Santacesaria, R, Santamarina Rios, C, Santovetti, E, Sapunov, M, Sarti, A, Satriano, C, Satta, A, Savrie, M, Savrina, D, Schaack, P, Schiller, M, Schindler, H, Schlupp, M, Schmelling, M, Schmidt, B, Schneider, O, Schopper, A, Schune, M -H, Schwemmer, R, Sciascia, B, Sciubba, A, Seco, M, Semennikov, A, Senderowska, K, Sepp, I, Serra, N, Serrano, J, Seyfert, P, Shapkin, M, Shapoval, I, Shatalov, P, Shcheglov, Y, Shears, T, Shekhtman, L, Shevchenko, O, Shevchenko, V, Shires, A, Silva Coutinho, R, Sirendi, M, Skidmore, N, Skwarnicki, T, Smith, N A, Smith, E, Smith, J, Smith, M, Sokoloff, M D, Soler, F J P, Soomro, F, Souza, D, Souza De Paula, B, Spaan, B, Sparkes, A, Spradlin, P, Stagni, F, Stahl, S, Steinkamp, O, Stevenson, S, Stoica, S, Stone, S, Storaci, B, Straticiuc, M, Straumann, U, Subbiah, V K, Sun, L, Swientek, S, Syropoulos, V, Szczekowski, M, Szczypka, P, Szumlak, T, T'Jampens, S, Teklishyn, M, Teodorescu, E, Teubert, F, Thomas, C, Thomas, E, van Tilburg, J, Tisserand, V, Tobin, M, Tolk, S, Tonelli, D, Topp-Joergensen, S, Torr, N, Tournefier, E, Tourneur, S, Tran, M T, Tresch, M, Tsaregorodtsev, A, Tsopelas, P, Tuning, N, Ubeda Garcia, M, Ukleja, A, Urner, D, Ustyuzhanin, A, Uwer, U, Vagnoni, V, Valenti, G, Vallier, A, Van Dijk, M, Vazquez Gomez, R, Vazquez Regueiro, P, Vázquez Sierra, C, Vecchi, S, Velthuis, J J, Veltri, M, Veneziano, G, Vesterinen, M, Viaud, B, Vieira, D, Vilasis-Cardona, X, Vollhardt, A, Volyanskyy, D, Voong, D, Vorobyev, A, Vorobyev, V, Voß, C, Voss, H, Waldi, R, Wallace, C, Wallace, R, Wandernoth, S, Wang, J, Ward, D R, Watson, N K, Webber, A D, Websdale, D, Whitehead, M, Wicht, J, Wiechczynski, J, Wiedner, D, Wiggers, L, Wilkinson, G, Williams, M P, Williams, M, Wilson, F F, Wimberley, J, Wishahi, J, Wislicki, W, Witek, M, Wotton, S A, Wright, S, Wu, S, Wyllie, K, Xie, Y, Xing, Z, Yang, Z, Young, R, Yuan, X, Yushchenko, O, Zangoli, M, Zavertyaev, M, Zhang, F, Zhang, L, Zhang, W C, Zhang, Y, Zhelezov, A, Zhokhov, A, Zhong, L, Zvyagin, A
Lenguaje:eng
Publicado: 2013
Materias:
Acceso en línea:https://dx.doi.org/10.1103/PhysRevLett.111.112003
http://cds.cern.ch/record/1565313
Descripción
Sumario:A broad peaking structure is observed in the dimuon spectrum of $B^+ \to K^+ \mu^+\mu^-$ decays in the kinematic region where the kaon has a low recoil against the dimuon system. The structure is consistent with interference between the $B^+ \to K^+ \mu^+\mu^-$ decay and a resonance and has a statistical significance exceeding six standard deviations. The mean and width of the resonance are measured to be $4191^{+9}_{-8}\mathrm{\,Me\kern -0.1em V/}c^2$ and $65^{+22}_{-16}\mathrm{\,Me\kern -0.1em V/}c^2$, respectively, where the uncertainties include statistical and systematic contributions. These measurements are compatible with the properties of the $\psi(4160)$ meson. First observations of both the decay $B^+ \to \psi(4160) K^+$ and the subsequent decay $\psi(4160) \to \mu^+\mu^-$ are reported. The resonant decay and the interference contribution make up 20% of the yield for dimuon masses above 3770  MeV/c2. This contribution is larger than theoretical estimates.