Study of η − η′ mixing from measurement of B (s) 0 → J/ψη(′) decay rates

Autor: The LHCb collaboration, Null, Aaij, R., Adeva, B., Adinolfi, M., Affolder, A., Ajaltouni, Z., Akar, S., Albrecht, J., Alessio, F., Alexander, M., Ali, S., Alkhazov, G., Alvarez Cartelle, P., Alves, A. A., Amato, S., Amerio, S., Amhis, Y., An, L., Anderlini, L., Anderson, J., Andreassen, R., Andreotti, M., 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., 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., Belogurov, S., Belous, K., Belyaev, I., Ben Haim, E., Bencivenni, G., Benson, S., Benton, J., Berezhnoy, A., Bernet, R., Bertolin, A. B., 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., Borsato, M., Bowcock, T. J. V., Bowen, E., Bozzi, C., Brett, D., Britsch, M., Britton, T., Brodzicka, J., Brook, N. H., Brown, H., Bursche, A., Buytaert, J., Cadeddu, S., Calabrese, R., Calvi, M., Calvo Gomez, M., Campana, P., Campora Perez, D., Capriotti, L., Carbone, A., Carboni, G., Cardinale, R., Cardini, A., Carson, L., Carvalho Akiba, K., Casanova Mohr, R. C. M., Casse, G., Cassina, L., Castillo Garcia, L., Cattaneo, M., Cauet, C. h., Cenci, R., Charles, M., Charpentier, P. h., Chefdeville, M., Chen, S., Cheung, S. F., Chiapolini, N., Chrzaszcz, M., Cid Vidal, X., Ciezarek, 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., Counts, I., Couturier, B., Cowan, G. A., Craik, D. C., Crocombe, A. C., Cruz Torres, M., Cunliffe, S., Currie, R., D’Ambrosio, C., Dalseno, J., David, P., David, P. N. Y., Davis, A., De Bruyn, K., De Capua, S., De Cian, M., De Miranda, J. M., De Paula, L., De Silva, W., De Simone, P., Dean, C. T., Decamp, D., Deckenhoff, M., Del Buono, L., Déléage, N., Derkach, D., Deschamps, O., Dettori, F., Di Canto, A., Dijkstra, H., Donleavy, S., Dordei, F., Dorigo, M., Dosil Suárez, A., Dossett, D., Dovbnya, A., Dreimanis, K., 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, C. h., Ely, S., Esen, S., Evans, H. M., Evans, T., Falabella, A., Färber, C., Farinelli, C., Farley, N., Farry, S., Fay, R., Ferguson, D., Fernandez Albor, V., Ferreira Rodrigues, F., Ferro Luzzi, M., Filippov, S., Fiore, M., Fiorini, M., Firlej, M., Fitzpatrick, C., Fiutowski, T., 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., García Pardiñas, J., Garofoli, J., Garra Tico, J., Garrido, L., Gascon, D., Gaspar, C., Gastaldi, U., Gauld, R., Gavardi, L., Gazzoni, G., Geraci, A., Gersabeck, E., Gersabeck, M., Gershon, T., Ghez, P. h., Gianelle, A., Gianí, S., Gibson, V., Giubega, L., Gligorov, V. V., Göbel, C., Golubkov, D., Golutvin, A., Gomes, A., Gotti, C., Grabalosa Gándara, M., Graciani Diaz, R., Granado Cardoso, L. A., Graugés, E., Graverini, E., Graziani, G., Grecu, A., Greening, E., Gregson, S., Griffith, P., Grillo, L., Grünberg, O., Gui, B., Gushchin, E., Guz, Y. u., Gys, T., Hadjivasiliou, C., Haefeli, G., Haen, C., Haines, S. C., Hall, S., Hamilton, B., Hampson, T., 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., Hussain, N., Hutchcroft, D., Hynds, D., Idzik, M., Ilten, P., Jacobsson, R., Jaeger, A., Jalocha, J., Jans, E., Jaton, P., 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., Ketel, T., Khanji, B., Khurewathanakul, C., Klaver, S., Klimaszewski, K., Kochebina, O., Kolpin, M., Komarov, I., Koopman, R. F., Koppenburg, P., Korolev, M., Kravchuk, L., Kreplin, K., Kreps, M., Krocker, G., Krokovny, P., Kruse, F., Kucewicz, W., Kucharczyk, M., Kudryavtsev, V., Kurek, K., Kvaratskheliya, T., La Thi, V. N., Lacarrere, D., Lafferty, G., Lai, A., Lambert, D., Lambert, R. W., Lanfranchi, G., Langenbruch, C., Langhans, B., 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., Likhomanenko, T., Liles, M., Lindner, R., Linn, C., Lionetto, F., Liu, B., Lohn, S., Longstaff, I., Lopes, J. H., Lowdon, P., Lucchesi, D., Luo, H., Lupato, A., Luppi, E., Lupton, O., Machefert, F., Machikhiliyan, I. V., Maciuc, F., Maev, O., Malde, S., Malinin, A., Manca, G., Mancinelli, G., Mapelli, A., Maratas, J., Marchand, J. F., Marconi, U., Marin Benito, C., Marino, P., Märki, R., Marks, J., Martellotti, G., Martín Sánchez, A., Martinelli, M., Martinez Santos, D., Martinez Vidal, F., Martins Tostes, D., Massafferri, A., Matev, R., Mathe, Z., Matteuzzi, C., Mazurov, A., Mccann, M., Mccarthy, J., Mcnab, A., Mcnulty, R., Mcskelly, B., Meadows, B., Meier, F., Meissner, M., Merk, M., Milanes, D. A., Minard, M. N., Moggi, N., Molina Rodriguez, J., Monteil, S., Morandin, M., Morawski, P., Mordà, A., Morello, M. J., Moron, J., Morris, A. B., Mountain, R., Muheim, F., Müller, K., Mussini, M., Muster, B., Naik, P., Nakada, T., Nandakumar, R., Nasteva, I., Needham, M., Neri, N., Neubert, S., Neufeld, N., Neuner, M., Nguyen, A. D., Nguyen, T. D., Nguyen Mau, C., Nicol, M., Niess, V., Niet, R., Nikitin, N., Nikodem, T., Novoselov, A., O’Hanlon, D. P., Oblakowska Mucha, A., Obraztsov, V., Oggero, S., Ogilvy, S., Okhrimenko, O., Oldeman, R., Onderwater, C. J. G., Orlandea, M., Otalora Goicochea, J. M., Otto, A., Owen, P., Oyanguren, A., Pal, B. K., Palano, A., Palombo, F., Palutan, M., Panman, J., Papanestis, A., Pappagallo, M., Pappalardo, L. L., Parkes, C., Parkinson, C. J., Passaleva, G., Patel, G. D., Patel, M., Patrignani, C., Pearce, A., Pellegrino, A., Penso, G., Pepe Altarelli, M., Perazzini, S., Perret, P., Perrin Terrin, M., Pescatore, L., Pesen, E., Petridis, K., Petrolini, A., Picatoste Olloqui, E., Pietrzyk, B., Pilař, T., Pinci, D., Pistone, A., Playfer, S., Plo Casasus, M., Polci, F., Polikarpov, S., Poluektov, A., Polyakov, I., Polycarpo, E., Popov, A., Popov, D., Popovici, B., Potterat, C., Price, E., Price, J. D., Prisciandaro, J., Pritchard, A., Prouve, C., Pugatch, V., Puig Navarro, A., Punzi, G., Qian, W., Rachwal, B., Rademacker, J. H., Rakotomiaramanana, B., Rama, M., Rangel, M. S., Raniuk, I., Rauschmayr, N., Raven, G., Redi, F., Reichert, S., Reid, M. M., dos Reis, A. C., Ricciardi, S., Richards, S., Rihl, M., Rinnert, K., Rives Molina, V., Robbe, P., Rodrigues, A. B., Rodrigues, E., Rodriguez Perez, P., Roiser, S., Romanovsky, V., Romero Vidal, A., Rotondo, M., Rouvinet, J., Ruf, T., Ruiz, H., Ruiz Valls, P., Saborido Silva, J. J., Sagidova, N., Sail, P., Saitta, B., Salustino Guimaraes, V., Sanchez Mayordomo, C., Sanmartin Sedes, B., Santacesaria, R., Santamarina Rios, C., Santovetti, E., Sarti, Alessio, Satriano, C., Satta, A., Saunders, D. M., Savrina, D., Schiller, M., Schindler, H., Schlupp, M., Schmelling, M., Schmidt, B., Schneider, O., Schopper, A., Schune, M. H., Schwemmer, R., Sciascia, B., Sciubba, Adalberto, Semennikov, A., Sepp, I., Serra, N., Serrano, J., Sestini, L., Seyfert, P., Shapkin, M., Shapoval, I., Shcheglov, Y., Shears, T., Shekhtman, L., Shevchenko, V., Shires, A., Silva Coutinho, R., Simi, G., Sirendi, M., Skidmore, N., Skillicorn, I., Skwarnicki, T., Smith, N. A., Smith, E., Smith, J., Smith, M., Snoek, H., Sokoloff, M. D., Soler, F. J. P., Soomro, F., Souza, D., Souza De Paula, B., Spaan, B., Spradlin, P., Sridharan, S., Stagni, F., Stahl, M., Stahl, S., Steinkamp, O., Stenyakin, O., Stevenson, S., Stoica, S., Stone, S., Storaci, B., Stracka, S., Straticiuc, M., Straumann, U., Stroili, R., Sun, L., Sutcliffe, W., Swientek, K., Swientek, S., Syropoulos, V., Szczekowski, M., Szczypka, P., Szumlak, T., T’Jampens, S., 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., Tran, M. T., Tresch, M., Trisovic, A., Tsaregorodtsev, A., Tsopelas, P., Tuning, N., Ubeda Garcia, M., Ukleja, A., Ustyuzhanin, A., Uwer, U., Vacca, C., Vagnoni, V., Valenti, G., Vallier, A., Vazquez Gomez, R., Vazquez Regueiro, P., Vázquez 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., Whitehead, M., Wiedner, D., Wilkinson, G., Wilkinson, M., Williams, M. P., Williams, M., Wilschut, H. W., Wilson, F. F., Wimberley, J., Wishahi, J., Wislicki, W., Witek, M., Wormser, G., Wotton, S. A., Wright, S., Wyllie, K., Xie, Y., Xing, Z., Xu, Z., Yang, Z., Yuan, X., Yushchenko, O., Zangoli, M., Zavertyaev, M., Zhang, L., Zhang, W. C., Zhang, Y., Zhelezov, A., Zhokhov, A., Zhong, L.
Přispěvatelé: (Astro)-Particles Physics, Laboratoire d'Annecy de Physique des Particules (LAPP), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS), Laboratoire de l'Accélérateur Linéaire (LAL), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Centre de Physique des Particules de Marseille (CPPM), Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Corpusculaire - Clermont-Ferrand (LPC), Université Blaise Pascal - Clermont-Ferrand 2 (UBP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), LHCb, Universidade de Santiago de Compostela. Departamento de Física de Partículas, Universidade de Santiago de Compostela. Instituto Galego de Física de Altas Enerxías (IGFAE), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), The LHCb collaboration, N, Aaij, R, Adeva, B, Adinolfi, M, Affolder, A, Ajaltouni, Z, Akar, S, Albrecht, J, Alessio, F, Alexander, M, Ali, S, Alkhazov, G, Alvarez Cartelle, P, Alves, A, Amato, S, Amerio, S, Amhis, Y, An, L, Anderlini, L, Anderson, J, Andreassen, R, Andreotti, M, Andrews, J, Appleby, R, Aquines Gutierrez, O, Archilli, F, Artamonov, A, Artuso, M, Aslanides, E, Auriemma, G, Baalouch, M, Bachmann, S, Back, J, Badalov, A, Baesso, C, Baldini, W, Barlow, R, Barschel, C, Barsuk, S, Barter, W, Batozskaya, V, Battista, V, Bay, A, Beaucourt, L, 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, Bertolin, A, Bettler, M, van Beuzekom, M, Bien, A, Bifani, S, Bird, T, Bizzeti, A, Bjørnstad, P, Blake, T, Blanc, F, Blouw, J, Blusk, S, Bocci, V, Bondar, A, Bondar, N, Bonivento, W, Borghi, S, Borgia, A, Borsato, M, Bowcock, T, Bowen, E, Bozzi, C, Brett, D, Britsch, M, Britton, T, Brodzicka, J, Brook, N, Brown, H, Bursche, A, Buytaert, J, Cadeddu, S, Calabrese, R, Calvi, M, Calvo Gomez, M, Campana, P, Campora Perez, D, Capriotti, L, Carbone, A, Carboni, G, Cardinale, R, Cardini, A, Carson, L, Carvalho Akiba, K, Casanova Mohr, R, Casse, G, Cassina, L, Castillo Garcia, L, Cattaneo, M, Cauet, C, Cenci, R, Charles, M, Charpentier, P, Chefdeville, M, Chen, S, Cheung, S, Chiapolini, N, Chrzaszcz, M, Cid Vidal, X, Ciezarek, G, Clarke, P, Clemencic, M, Cliff, H, 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, Counts, I, Couturier, B, Cowan, G, Craik, D, Crocombe, A, Cruz Torres, M, Cunliffe, S, Currie, R, D’Ambrosio, C, Dalseno, J, David, P, Davis, A, De Bruyn, K, De Capua, S, De Cian, M, De Miranda, J, De Paula, L, De Silva, W, De Simone, P, Dean, C, Decamp, D, Deckenhoff, M, Del Buono, L, Déléage, N, Derkach, D, Deschamps, O, Dettori, F, Di Canto, A, Dijkstra, H, Donleavy, S, Dordei, F, Dorigo, M, Dosil Suárez, A, Dossett, D, Dovbnya, A, Dreimanis, K, 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, C, Ely, S, Esen, S, Evans, H, Evans, T, Falabella, A, Färber, C, Farinelli, C, Farley, N, Farry, S, Fay, R, Ferguson, D, Fernandez Albor, V, Ferreira Rodrigues, F, Ferro Luzzi, M, Filippov, S, Fiore, M, Fiorini, M, Firlej, M, Fitzpatrick, C, Fiutowski, T, 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, García Pardiñas, J, Garofoli, J, Garra Tico, J, Garrido, L, Gascon, D, Gaspar, C, Gastaldi, U, Gauld, R, Gavardi, L, Gazzoni, G, Geraci, A, Gersabeck, E, Gersabeck, M, Gershon, T, Ghez, P, Gianelle, A, Gianí, S, Gibson, V, Giubega, L, Gligorov, V, Göbel, C, Golubkov, D, Golutvin, A, Gomes, A, Gotti, C, Grabalosa Gándara, M, Graciani Diaz, R, Granado Cardoso, L, Graugés, E, Graverini, E, Graziani, G, Grecu, A, Greening, E, Gregson, S, Griffith, P, Grillo, L, Grünberg, O, Gui, B, Gushchin, E, Guz, Y, Gys, T, Hadjivasiliou, C, Haefeli, G, Haen, C, Haines, S, Hall, S, Hamilton, B, Hampson, T, Han, X, Hansmann Menzemer, S, Harnew, N, Harnew, S, Harrison, J, He, J, Head, T, Heijne, V, Hennessy, K, Henrard, P, Henry, L, Hernando Morata, J, van Herwijnen, E, Heß, M, Hicheur, A, Hill, D, Hoballah, M, Hombach, C, Hulsbergen, W, Hussain, N, Hutchcroft, D, Hynds, D, Idzik, M, Ilten, P, Jacobsson, R, Jaeger, A, Jalocha, J, Jans, E, Jaton, P, Jawahery, A, Jing, F, John, M, Johnson, D, Jones, C, Joram, C, Jost, B, Jurik, N, Kandybei, S, Kanso, W, Karacson, M, Karbach, T, Karodia, S, Kelsey, M, Kenyon, I, Ketel, T, Khanji, B, Khurewathanakul, C, Klaver, S, Klimaszewski, K, Kochebina, O, Kolpin, M, Komarov, I, Koopman, R, Koppenburg, P, Korolev, M, Kravchuk, L, Kreplin, K, Kreps, M, Krocker, G, Krokovny, P, Kruse, F, Kucewicz, W, Kucharczyk, M, Kudryavtsev, V, Kurek, K, Kvaratskheliya, T, La Thi, V, Lacarrere, D, Lafferty, G, Lai, A, Lambert, D, Lambert, R, Lanfranchi, G, Langenbruch, C, Langhans, B, Latham, T, Lazzeroni, C, Le Gac, R, van Leerdam, J, Lees, J, Lefèvre, R, Leflat, A, Lefrançois, J, Leo, S, Leroy, O, Lesiak, T, Leverington, B, Li, Y, Likhomanenko, T, Liles, M, Lindner, R, Linn, C, Lionetto, F, Liu, B, Lohn, S, Longstaff, I, Lopes, J, Lowdon, P, Lucchesi, D, Luo, H, Lupato, A, Luppi, E, Lupton, O, Machefert, F, Machikhiliyan, I, Maciuc, F, Maev, O, Malde, S, Malinin, A, Manca, G, Mancinelli, G, Mapelli, A, Maratas, J, Marchand, J, Marconi, U, Marin Benito, C, Marino, P, Märki, R, Marks, J, Martellotti, G, Martín Sánchez, A, Martinelli, M, Martinez Santos, D, Martinez Vidal, F, Martins Tostes, D, Massafferri, A, Matev, R, Mathe, Z, Matteuzzi, C, Mazurov, A, Mccann, M, Mccarthy, J, Mcnab, A, Mcnulty, R, Mcskelly, B, Meadows, B, Meier, F, Meissner, M, Merk, M, Milanes, D, Minard, M, Moggi, N, Molina Rodriguez, J, Monteil, S, Morandin, M, Morawski, P, Mordà, A, Morello, M, Moron, J, Morris, A, Mountain, R, Muheim, F, Müller, K, Mussini, M, Muster, B, Naik, P, Nakada, T, Nandakumar, R, Nasteva, I, Needham, M, Neri, N, Neubert, S, Neufeld, N, Neuner, M, Nguyen, A, Nguyen, T, Nguyen Mau, C, Nicol, M, Niess, V, Niet, R, Nikitin, N, Nikodem, T, Novoselov, A, O’Hanlon, D, Oblakowska Mucha, A, Obraztsov, V, Oggero, S, Ogilvy, S, Okhrimenko, O, Oldeman, R, Onderwater, C, Orlandea, M, Otalora Goicochea, J, Otto, A, Owen, P, Oyanguren, A, Pal, B, Palano, A, Palombo, F, Palutan, M, Panman, J, Papanestis, A, Pappagallo, M, Pappalardo, L, Parkes, C, Parkinson, C, Passaleva, G, Patel, G, Patel, M, Patrignani, C, Pearce, A, Pellegrino, A, Penso, G, Pepe Altarelli, M, Perazzini, S, Perret, P, Perrin Terrin, M, Pescatore, L, Pesen, E, Petridis, K, Petrolini, A, Picatoste Olloqui, E, Pietrzyk, B, Pilař, T, Pinci, D, Pistone, A, Playfer, S, Plo Casasus, M, Polci, F, Polikarpov, S, Poluektov, A, Polyakov, I, Polycarpo, E, Popov, A, Popov, D, Popovici, B, Potterat, C, Price, E, Price, J, Prisciandaro, J, Pritchard, A, Prouve, C, Pugatch, V, Puig Navarro, A, Punzi, G, Qian, W, Rachwal, B, Rademacker, J, Rakotomiaramanana, B, Rama, M, Rangel, M, Raniuk, I, Rauschmayr, N, Raven, G, Redi, F, Reichert, S, Reid, M, dos Reis, A, Ricciardi, S, Richards, S, Rihl, M, Rinnert, K, Rives Molina, V, Robbe, P, Rodrigues, A, Rodrigues, E, Rodriguez Perez, P, Roiser, S, Romanovsky, V, Romero Vidal, A, Rotondo, M, Rouvinet, J, Ruf, T, Ruiz, H, Ruiz Valls, P, Saborido Silva, J, Sagidova, N, Sail, P, Saitta, B, Salustino Guimaraes, V, Sanchez Mayordomo, C, Sanmartin Sedes, B, Santacesaria, R, Santamarina Rios, C, Santovetti, E, Sarti, A, Satriano, C, Satta, A, Saunders, D, Savrina, D, Schiller, M, Schindler, H, Schlupp, M, Schmelling, M, Schmidt, B, Schneider, O, Schopper, A, Schune, M, Schwemmer, R, Sciascia, B, Sciubba, A, Semennikov, A, Sepp, I, Serra, N, Serrano, J, Sestini, L, Seyfert, P, Shapkin, M, Shapoval, I, Shcheglov, Y, Shears, T, Shekhtman, L, Shevchenko, V, Shires, A, Silva Coutinho, R, Simi, G, Sirendi, M, Skidmore, N, Skillicorn, I, Skwarnicki, T, Smith, N, Smith, E, Smith, J, Smith, M, Snoek, H, Sokoloff, M, Soler, F, Soomro, F, Souza, D, Souza De Paula, B, Spaan, B, Spradlin, P, Sridharan, S, Stagni, F, Stahl, M, Stahl, S, Steinkamp, O, Stenyakin, O, Stevenson, S, Stoica, S, Stone, S, Storaci, B, Stracka, S, Straticiuc, M, Straumann, U, Stroili, R, Sun, L, Sutcliffe, W, Swientek, K, Swientek, S, Syropoulos, V, Szczekowski, M, Szczypka, P, Szumlak, T, T’Jampens, S, Teklishyn, M, Tellarini, G, Teubert, F, Thomas, C, 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Jazyk: angličtina
Rok vydání: 2015
Předmět:
Zdroj: Journal of High Energy Physics, 01. Springer Verlag
Aaij, R & Raven, G 2015, ' Study of $η-η^′$ mixing from measurement of $B^0_(s) → J/ψ η^(′)$ decay rates ', Journal of High Energy Physics, vol. 01, pp. 024 . https://doi.org/10.1007/JHEP01(2015)024
Journal of High Energy Physics
Journal of High Energy Physics, 2015, 2015 (1), pp.024. ⟨10.1007/JHEP01(2015)024⟩
Minerva. Repositorio Institucional de la Universidad de Santiago de Compostela
instname
Journal of High Energy Physics, Springer, 2015, 2015 (1), pp.024. ⟨10.1007/JHEP01(2015)024⟩
Dipòsit Digital de la UB
Universidad de Barcelona
Journal of high energy physics : JHEP
ISSN: 1126-6708
1029-8479
DOI: 10.1007/JHEP01(2015)024
Popis: A study of B and B s meson decays into J/ψ η and J/ψ η ′ final states is performed using a data set of proton-proton collisions at centre-of-mass energies of 7 and 8 TeV, collected by the LCHb experiment and corresponding to 3.0 fb −1 of integrated luminosity. The decay B 0 → J/ψ η ′ is observed for the first time. The following ratios of branching fractions are measured: ℬ B 0 → J / ψ η ′ ℬ B s 0 → J / ψ η ′ = 2.28 ± 0.65 stat ± 0.10 syst ± 0.13 fs / f d × 1 0 − 2 , ℬ B 0 → J / ψ η ℬ B s 0 → J / ψ η = 1.85 ± 0.61 stat ± 0.09 syst ± 0.11 fs / f d × 1 0 − 2 , $$ \begin{array}{c}\hfill \frac{\mathrm{\mathcal{B}}\left({\mathrm{B}}^0\to \mathrm{J}/{\uppsi \upeta}^{\prime}\right)}{\mathrm{\mathcal{B}}\left({\mathrm{B}}_{\mathrm{s}}^0\to\ \mathrm{J}/{\uppsi \upeta}^{\prime}\right)} = \left(2.28\pm 0.65\ \left(\mathrm{stat}\right)\pm 0.10\ \left(\mathrm{syst}\right)\pm 0.13\ \left(\mathrm{fs}/\mathrm{f}\mathrm{d}\right)\right)\times 1{0}^{-2},\hfill \\ {}\hfill \frac{\mathrm{\mathcal{B}}\left({\mathrm{B}}^0\to\ \mathrm{J}/\uppsi \upeta \right)}{\mathrm{\mathcal{B}}\left({\mathrm{B}}_{\mathrm{s}}^0\to\ \mathrm{J}/\uppsi \upeta \right)} = \left(1.85\pm 0.61\ \left(\mathrm{stat}\right)\pm 0.09\ \left(\mathrm{syst}\right)\pm 0.11\ \left(\mathrm{fs}/\mathrm{f}\mathrm{d}\right)\right)\times 1{0}^{-2},\hfill \end{array} $$ where the third uncertainty is related to the present knowledge of f s /f d , the ratio between the probabilities for a b quark to form a B s or a B 0 meson. The branching fraction ratios are used to determine the parameters of η − η ′ meson mixing. In addition, the first evidence for the decay B s → ψ(2S)η ′ is reported, and the relative branching fraction is measured, ℬ B s 0 → ψ 2 S η ′ ℬ B s 0 → J / ψ η ′ = 38.7 ± 9.0 stat ± 1.3 syst ± 0.9 ℬ × 1 0 − 2 , $$ \frac{\mathrm{\mathcal{B}}\left({\mathrm{B}}_{\mathrm{s}}^0\to\ \uppsi \left(2\mathrm{S}\right){\upeta}^{\prime}\right)}{\mathrm{\mathcal{B}}\left({\mathrm{B}}_{\mathrm{s}}^0\to\ \mathrm{J}/{\uppsi \upeta}^{\prime}\right)} = \left(38.7\pm 9.0\ \left(\mathrm{stat}\right)\pm 1.3\ \left(\mathrm{syst}\right)\pm 0.9\left(\mathrm{\mathcal{B}}\right)\right)\times 1{0}^{-2}, $$ where the third uncertainty is due to the limited knowledge of the branching fractions of J/ψ and ψ(2S) mesons.
Databáze: OpenAIRE
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