Evidence for the decay B0→J/ψω and measurement of the relative branching fractions of B0s meson decays to J/ψη and J/ψη′

Autor: Aaij, R., Abellan Beteta, C., Adametz, A., Adeva, B., Adinolfi, M., Adrover, C., Affolder, A., Ajaltouni, Z., Albrecht, J., Alessio, F., Alexander, M., Ali, S., Alkhazov, G., Alvarez Cartelle, P., Alves, A.A., Amato, S., Amhis, Y., Anderlini, L., Anderson, J., Appleby, R.B., Aquines Gutierrez, O., Archilli, F., Artamonov, A., Artuso, M., Aslanides, E., Auriemma, G., Bachmann, S., Back, J.J., Baesso, C., Balagura, V., Baldini, W., Barlow, R.J., Barschel, C., Barsuk, S., Barter, W., Bates, A., Bauer, Th., Bay, A., Beddow, J., Bediaga, I., Belogurov, S., Belous, K., Belyaev, I., Ben-Haim, E., Benayoun, M., 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., Blanks, C., Blouw, J., Blusk, S., Bobrov, A., Bocci, V., Bondar, A., Bondar, N., Bonivento, W., Borghi, S., Borgia, A., Bowcock, T.J.V., Bozzi, C., Brambach, T., van den Brand, J., Bressieux, J., Brett, D., Britsch, M., Britton, T., Brook, N.H., Brown, H., Büchler-Germann, A., Burducea, I., Bursche, A., Buytaert, J., Cadeddu, S., Callot, O., Calvi, M., Calvo Gomez, M., Camboni, A., Campana, P., Carbone, A., Carboni, G., Cardinale, R., Cardini, A., Carson, L., Carvalho Akiba, K., Casse, G., Cattaneo, M., Cauet, Ch., 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., Corti, G., Couturier, B., Cowan, G.A., Craik, D., Cunliffe, S., Currie, R., DʼAmbrosio, C., David, P., David, P.N.Y., De Bonis, I., De Bruyn, K., De Capua, S., De Cian, M., De Miranda, J.M., De Paula, L., De Simone, P., Decamp, D., Deckenhoff, M., Degaudenzi, H., Del Buono, L., Deplano, C., Derkach, D., Deschamps, O., Dettori, F., Dickens, J., Dijkstra, H., Diniz Batista, P., Domingo Bonal, F., Donleavy, S., Dordei, F., Dosil Suárez, A., Dossett, D., Dovbnya, A., Dupertuis, F., Dzhelyadin, R., Dziurda, A., Dzyuba, A., Easo, S., Egede, U., Egorychev, V., Eidelman, S., van Eijk, D., Eisele, F., Eisenhardt, S., Ekelhof, R., Eklund, L., El Rifai, I., Elsasser, Ch., Elsby, D., Esperante Pereira, D., Falabella, A., Färber, C., Fardell, G., Farinelli, C., Farry, S., Fave, V., Fernandez Albor, V., Ferreira Rodrigues, F., Ferro-Luzzi, M., Filippov, S., Fitzpatrick, C., Fontana, M., Fontanelli, F., Forty, R., Francisco, O., Frank, M., Frei, C., Frosini, M., Furcas, S., Gallas Torreira, A., Galli, D., Gandelman, M., Gandini, P., Gao, Y., Garnier, J.-C., Garofoli, J., Garra Tico, J., Garrido, L., Gaspar, C., Gauld, R., Gersabeck, E., Gersabeck, M., Gershon, T., Ghez, Ph., Gibson, V., Gligorov, V.V., Göbel, C., Golubkov, D., Golutvin, A., Gomes, A., Gordon, H., Grabalosa Gándara, M., Graciani Diaz, R., Granado Cardoso, L.A., Graugés, E., Graziani, G., Grecu, A., Greening, E., Gregson, S., Grünberg, O., Gui, B., Gushchin, E., Guz, Yu., Gys, T., Hadjivasiliou, C., Haefeli, G., Haen, C., Haines, S.C., Hall, S., Hampson, T., Hansmann-Menzemer, S., Harnew, N., Harnew, S.T., Harrison, J., Harrison, P.F., Hartmann, T., He, J., Heijne, V., Hennessy, K., Henrard, P., Hernando Morata, J.A., van Herwijnen, E., Hicks, E., Hill, D., Hoballah, M., Hopchev, P., Hulsbergen, W., Hunt, P., Huse, T., Hussain, N., Huston, R.S., Hutchcroft, D., Hynds, D., Iakovenko, V., Ilten, P., Imong, J., Jacobsson, R., Jaeger, A., Jahjah Hussein, M., Jans, E., Jansen, F., Jaton, P., Jean-Marie, B., Jing, F., John, M., Johnson, D., Jones, C.R., Jost, B., Kaballo, M., Kandybei, S., Karacson, M., Karbach, M., Keaveney, J., Kenyon, I.R., Kerzel, U., Ketel, T., Keune, A., Khanji, B., Kim, Y.M., Kochebina, O., Komarov, I., Komarov, V., 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., 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., Leroy, O., Lesiak, T., Li, L., Li, Y., Li Gioi, L., Liles, M., Lindner, R., Linn, C., Liu, B., Liu, G., von Loeben, J., Lopes, J.H., Lopez Asamar, E., Lopez-March, N., Lu, H., Luisier, J., MacRaighne, A., Machefert, F., Machikhiliyan, I.V., Maciuc, F., Maev, O., Magnin, J., Maino, M., Malde, S., Manca, G., Mancinelli, G., Mangiafave, N., Marconi, U., Märki, R., Marks, J., Martellotti, G., Martens, A., Martin, L., Martín Sánchez, A., Martinelli, M., Martinez Santos, D., Massafferri, A., Mathe, Z., Matteuzzi, C., Matveev, M., Maurice, E., Mazurov, A., McCarthy, J., McGregor, G., McNulty, R., Meissner, M., Merk, M., Merkel, J., Milanes, D.A., Minard, M.-N., Molina Rodriguez, J., Monteil, S., Moran, D., Morawski, P., Mountain, R., Mous, I., Muheim, F., Müller, K., Muresan, R., Muryn, B., Muster, B., Mylroie-Smith, J., Naik, P., Nakada, T., Nandakumar, R., Nasteva, I., Needham, M., Neufeld, N., Nguyen, A.D., Nguyen-Mau, C., Nicol, M., Niess, V., 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., Pal, B.K., Palano, A., 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., Perego, D.L., Perez Trigo, E., Pérez-Calero Yzquierdo, A., Perret, P., Perrin-Terrin, M., Pessina, G., Petridis, K., Petrolini, A., Phan, A., Picatoste Olloqui, E., Pie Valls, B., Pietrzyk, B., Pilař, T., Pinci, D., Playfer, S., Plo Casasus, M., Polci, F., Polok, G., Poluektov, A., Polycarpo, E., Popov, D., Popovici, B., Potterat, C., Powell, A., Prisciandaro, J., Pugatch, V., Puig Navarro, A., 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., Rodrigues, E., Rodriguez Perez, P., Rogers, G.J., Roiser, S., Romanovsky, V., Romero Vidal, A., Rouvinet, J., Ruf, T., Ruiz, H., Sabatino, G., Saborido Silva, J.J., Sagidova, N., Sail, P., Saitta, B., Salzmann, C., Sanmartin Sedes, B., Sannino, M., Santacesaria, R., Santamarina Rios, C., Santinelli, R., Santovetti, E., Sapunov, M., Sarti, A., Satriano, C., Satta, A., Savrie, M., Savrina, D., Schaack, P., Schiller, M., Schindler, H., Schleich, S., 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., Skwarnicki, T., Smith, N.A., Smith, E., Smith, M., Sobczak, K., Soler, F.J.P., Solomin, A., Soomro, F., Souza, D., Souza De Paula, B., Spaan, B., Sparkes, A., Spradlin, P., Stagni, F., Stahl, S., Steinkamp, O., Stoica, S., Stone, S., Storaci, B., Straticiuc, M., Straumann, U., Subbiah, V.K., Swientek, S., Szczekowski, M., Szczypka, P., Szumlak, T., TʼJampens, S., Teklishyn, M., Teodorescu, E., Teubert, F., Thomas, C., Thomas, E., van Tilburg, J., Tisserand, V., Tobin, M., Tolk, S., Topp-Joergensen, S., Torr, N., Tournefier, E., Tourneur, S., Tran, M.T., Tsaregorodtsev, A., Tuning, N., Ubeda Garcia, M., Ukleja, A., Urner, D., Uwer, U., Vagnoni, V., Valenti, G., Vazquez Gomez, R., Vazquez Regueiro, P., Vecchi, S., Velthuis, J.J., Veltri, M., Veneziano, G., Vesterinen, M., Viaud, B., Videau, I., Vieira, D., Vilasis-Cardona, X., Visniakov, J., Vollhardt, A., Volyanskyy, D., Voong, D., Vorobyev, A., Vorobyev, V., Voss, H., Voß, C., Waldi, R., Wallace, R., Wandernoth, S., Wang, J., Ward, D.R., Watson, N.K., Webber, A.D., Websdale, D., Whitehead, M., Wicht, J., Wiedner, D., Wiggers, L., Wilkinson, G., Williams, M.P., Williams, M., Wilson, F.F., Wishahi, J., Witek, M., Witzeling, W., Wotton, S.A., Wright, S., Wu, S., Wyllie, K., Xie, Y., Xing, F., 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., Zhong, L., Zvyagin, A.
Jazyk: angličtina
Rok vydání: 2013
Předmět:
Zdroj: Nucl.Phys. B
Nucl. Phys.
The LHCb Collaboration, Needham, M, Muheim, F, Clarke, P, Xie, Y & Eisenhardt, S 2013, ' Evidence for the decay B0→J/ψω and measurement of the relative branching fractions of B0s meson decays to J/ψη and J/ψη′ ' Nuclear Physics B, vol 867, pp. 547-566 . DOI: 10.1016/j.nuclphysb.2012.10.021
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ISSN: 0550-3213
DOI: 10.1016/j.nuclphysb.2012.10.021
Popis: First evidence of the $\mathrm{B}^0\to J/\psi\omega$ decay is found and the $\mathrm{B}_{s}^0\to J/\psi\eta$ and $\mathrm{B}_{s}^0\to J/\psi\eta^{\prime}$ decays are studied using a dataset corresponding to an integrated luminosity of 1.0~$\mathrm{fb}^{-1}$ collected by the LHCb experiment in proton-proton collisions at a centre-of-mass energy of $\sqrt{s} = 7$~TeV. The branching fractions of these decays are measured relative to that of the $\mathrm{B}^0\to J/\psi\rho^0$ decay: %The following ratios are measured \begin{equation} \begin{array}{lll} \frac{\mathcal{B}(\mathrm{B}^0\to J/\psi\omega)}{\mathcal{B}(\mathrm{B}^0\to J/\psi\rho^0)} $=$ \:0.89 \pm0.19\,(\mathrm{stat})\,^{+0.07}_{-0.13}\,(\mathrm{syst}),\nonumber \\ \frac{\mathcal{B}(\mathrm{B}^0_s\to J/\psi\eta)}{\mathcal{B}(\mathrm{B}^0\to J/\psi\rho^0)} $=$ \:14.0 \pm 1.2\,(\mathrm{stat})\,^{+1.1}_{-1.5}\,(\mathrm{syst})\,^{+1.1}_{-1.0}\left(\frac{f_\mathrm{d}}{f_\mathrm{s}}\right),\nonumber \\ \frac{\mathcal{B}(\mathrm{B}^0_s\to J/\psi\eta^{\prime})}{\mathcal{B}(\mathrm{B}^0\to J/\psi\rho^0)} $=$ \:12.7\pm1.1\,(\mathrm{stat})\,^{+0.5}_{-1.3}\,(\mathrm{syst})\,^{+1.0}_{-0.9}\left(\frac{f_\mathrm{d}}{f_\mathrm{s}}\right),\nonumber \end{array} \end{equation} where the last uncertainty is due to the knowledge of $f_\mathrm{d}/f_\mathrm{s}$, the ratio of b-quark hadronization factors that accounts for the different production rate of $\mathrm{B}^0$ and $\mathrm{B}^0_s$ mesons. The ratio of the branching fractions of $\mathrm{B}^0_s\to J/\psi\eta^{\prime}$ and $\mathrm{B}^0_s\to J/\psi\eta$ decays is measured to be \begin{equation} \frac{\mathcal{B}(\mathrm{B}^0_s\to J/\psi\eta^{\prime})}{\mathcal{B}(\mathrm{B}^0_s\to J/\psi\eta)} = 0.90\pm0.09\,(\mathrm{stat})\,^{+0.06}_{-0.02}\,(\mathrm{syst}).\nonumber \end{equation}
Databáze: OpenAIRE
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