We search for the flavor-changing neutral-current decays B→K(*) νν̄, and the invisible decays J/ψ→νν̄ and ψ(2S)→νν̄ via B→K(*) J/ψ and B→K(*) ψ(2S), respectively, using a data sample of 471×106 BB̄ pairs collected by the BABAR experiment. We fully reconstruct the hadronic decay of one of the B mesons in the Υ(4S)→BB̄ decay, and search for the B→K(*) νν̄ decay in the rest of the event. We observe no significant excess of signal decays over background and report branching fraction upper limits of B(B+→K +νν̄)<3.7×10-5, B(B0→K0νν ̄)<8.1×10-5, B(B+→K *+νν̄)<11.6×10-5, B(B0→K*0νν̄)<9.3×10-5, and combined upper limits of B(B→Kνν̄)<3.2×10-5 and B(B→K*νν̄)<7.9×10-5, all at the 90% confidence level. For the invisible quarkonium decays, we report branching fraction upper limits of B(J/ψ→νν̄)<3. 9×10-3 and B(ψ(2S)→νν̄)<15. 5×10-3 at the 90% confidence level. Using the improved kinematic resolution achieved from hadronic reconstruction, we also provide partial branching fraction limits for the B→K(* νν̄ decays over the full kinematic spectrum.

Lees, J., Poireau, V., Tisserand, V., Grauges, E., Palano, A., Eigen, G., et al. (2013). Search for B→K(*) vv̄ and invisible quarkonium decays. PHYSICAL REVIEW D, PARTICLES, FIELDS, GRAVITATION, AND COSMOLOGY, 87(11) [10.1103/PhysRevD.87.112005].

Search for B→K(*) vv̄ and invisible quarkonium decays

CARPINELLI, Massimo
Membro del Collaboration Group
;
2013

Abstract

We search for the flavor-changing neutral-current decays B→K(*) νν̄, and the invisible decays J/ψ→νν̄ and ψ(2S)→νν̄ via B→K(*) J/ψ and B→K(*) ψ(2S), respectively, using a data sample of 471×106 BB̄ pairs collected by the BABAR experiment. We fully reconstruct the hadronic decay of one of the B mesons in the Υ(4S)→BB̄ decay, and search for the B→K(*) νν̄ decay in the rest of the event. We observe no significant excess of signal decays over background and report branching fraction upper limits of B(B+→K +νν̄)<3.7×10-5, B(B0→K0νν ̄)<8.1×10-5, B(B+→K *+νν̄)<11.6×10-5, B(B0→K*0νν̄)<9.3×10-5, and combined upper limits of B(B→Kνν̄)<3.2×10-5 and B(B→K*νν̄)<7.9×10-5, all at the 90% confidence level. For the invisible quarkonium decays, we report branching fraction upper limits of B(J/ψ→νν̄)<3. 9×10-3 and B(ψ(2S)→νν̄)<15. 5×10-3 at the 90% confidence level. Using the improved kinematic resolution achieved from hadronic reconstruction, we also provide partial branching fraction limits for the B→K(* νν̄ decays over the full kinematic spectrum.
Articolo in rivista - Articolo scientifico
Scientifica
BABAR experiment
English
Carpinelli Massimo (BABAR Collaboration)
Lees, J., Poireau, V., Tisserand, V., Grauges, E., Palano, A., Eigen, G., et al. (2013). Search for B→K(*) vv̄ and invisible quarkonium decays. PHYSICAL REVIEW D, PARTICLES, FIELDS, GRAVITATION, AND COSMOLOGY, 87(11) [10.1103/PhysRevD.87.112005].
Lees, J; Poireau, V; Tisserand, V; Grauges, E; Palano, A; Eigen, G; Stugu, B; Brown, D; Kerth, L; Kolomensky, Y; Lee, M; Lynch, G; Koch, H; Schroeder, T; Hearty, C; Mattison, T; Mckenna, J; So, R; Khan, A; Blinov, V; Buzykaev, A; Druzhinin, V; Golubev, V; Kravchenko, E; Onuchin, A; Serednyakov, S; Skovpen, Y; Solodov, E; Todyshev, K; Yushkov, A; Kirkby, D; Lankford, A; Mandelkern, M; Dey, B; Gary, J; Long, O; Vitug, G; Campagnari, C; Sevilla M., F; Hong, T; Kovalskyi, D; Richman, J; West, C; Eisner, A; Lockman, W; Martinez, A; Schumm, B; Seiden, A; Chao, D; Cheng, C; Echenard, B; Flood, K; Hitlin, D; Ongmongkolkul, P; Porter, F; Andreassen, R; Huard, Z; Meadows, B; Sokoloff, M; Sun, L; Bloom, P; Ford, W; Gaz, A; Nauenberg, U; Smith, J; Wagner, S; Ayad, R; Toki, W; Spaan, B; Schubert, K; Schwierz, R; Bernard, D; Verderi, M; Playfer, S; Bettoni, D; Bozzi, C; Calabrese, R; Cibinetto, G; Fioravanti, E; Garzia, I; Luppi, E; Piemontese, L; Santoro, V; Baldini Ferroli, R; Calcaterra, A; de Sangro, R; Finocchiaro, G; Martellotti, S; Patteri, P; Peruzzi, I; Piccolo, M; Rama, M; Zallo, A; Contri, R; Guido, E; Lo Vetere, M; Monge, M; Passaggio, S; Patrignani, C; Robutti, E; Bhuyan, B; Prasad, V; Morii, M; Adametz, A; Uwer, U; Lacker, H; Dauncey, P; Mallik, U; Chen, C; Cochran, J; Meyer, W; Prell, S; Rubin, A; Gritsan, A; Arnaud, N; Davier, M; Derkach, D; Grosdidier, G; Le Diberder, F; Lutz, A; Malaescu, B; Roudeau, P; Stocchi, A; Wormser, G; Lange, D; Wright, D; Coleman, J; Fry, J; Gabathuler, E; Hutchcroft, D; Payne, D; Touramanis, C; Bevan, A; Di Lodovico, F; Sacco, R; Cowan, G; Bougher, J; Brown, D; Davis, C; Denig, A; Fritsch, M; Gradl, W; Griessinger, K; Hafner, A; Prencipe, E; Barlow, R; Lafferty, G; Behn, E; Cenci, R; Hamilton, B; Jawahery, A; Roberts, D; Cowan, R; Dujmic, D; Sciolla, G; Cheaib, R; Patel, P; Robertson, S; Biassoni, P; Neri, N; Palombo, F; Cremaldi, L; Godang, R; Sonnek, P; Summers, D; Nguyen, X; Simard, M; Taras, P; De Nardo, G; Monorchio, D; Onorato, G; Sciacca, C; Martinelli, M; Raven, G; Jessop, C; Losecco, J; Honscheid, K; Kass, R; Brau, J; Frey, R; Sinev, N; Strom, D; Torrence, E; Feltresi, E; Margoni, M; Morandin, M; Posocco, M; Rotondo, M; Simi, G; Simonetto, F; Stroili, R; Akar, S; Ben Haim, E; Bomben, M; Bonneaud, G; Briand, H; Calderini, G; Chauveau, J; Leruste, P; Marchiori, G; Ocariz, J; Sitt, S; Biasini, M; Manoni, E; Pacetti, S; Rossi, A; Angelini, C; Batignani, G; Bettarini, S; Carpinelli, M; Casarosa, G; Cervelli, A; Forti, F; Giorgi, M; Lusiani, A; Oberhof, B; Paoloni, E; Perez, A; Rizzo, G; Walsh, J; Pegna D., L; Olsen, J; Smith, A; Faccini, R; Ferrarotto, F; Ferroni, F; Gaspero, M; Gioi L., L; Piredda, G; Buenger, C; Gruenberg, O; Hartmann, T; Leddig, T; Voss, C; Waldi, R; Adye, T; Olaiya, E; Wilson, F; Emery, S; de Monchenault G., H; Vasseur, G; Yeche, C; Anulli, F; Aston, D; Bard, D; Benitez, J; Cartaro, C; Convery, M; Dorfan, J; Dubois Felsmann, G; Dunwoodie, W; Ebert, M; Field, R; Fulsom, B; Gabareen, A; Graham, M; Hast, C; Innes, W; Kim, P; Kocian, M; Leith, D; Lewis, P; Lindemann, D; Lindquist, B; Luitz, S; Luth, V; Lynch, H; Macfarlane, D; Muller, D; Neal, H; Nelson, S; Perl, M; Pulliam, T; Ratcliff, B; Roodman, A; Salnikov, A; Schindler, R; Snyder, A; Su, D; Sullivan, M; Va'Vra, J; Wagner, A; Wang, W; Wisniewski, W; Wittgen, M; Wright, D; Wulsin, H; Ziegler, V; Park, W; Purohit, M; White, R; Wilson, J; Randle Conde, A; Sekula, S; Bellis, M; Burchat, P; Miyashita, T; Puccio, E; Alam, M; Ernst, J; Gorodeisky, R; Guttman, N; Peimer, D; Soffer, A; Spanier, S; Ritchie, J; Ruland, A; Schwitters, R; Wray, B; Izen, J; Lou, X; Bianchi, F; De Mori, F; Filippi, A; Gamba, D; Zambito, S; Lanceri, L; Vitale, L; Martinez Vidal, F; Oyanguren, A; Villanueva Perez, P; Ahmed, H; Albert, J; Banerjee, S; Bernlochner, F; Choi, H; King, G; Kowalewski, R; Lewczuk, M; Lueck, T; Nugent, I; Roney, J; Sobie, R; Tasneem, N; Gershon, T; Harrison, P; Latham, T; Band, H; Dasu, S; Pan, Y; Prepost, R; Wu, S
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/10281/389238
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