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Measurement of form-factor independent observables in the decay $B^{0} \to K^{*0} \mu^+ \mu^-$

We present a measurement of form-factor independent angular observables in the decay $B^0\to K^{*}(892)^{0}\mu^+ \mu^-$. The analysis is based on a data sample corresponding to an integrated luminosity of 1.0 fb$^{-1}$, collected by the LHCb experiment in $pp$ collisions at a center-of-mass energy o...

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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, 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 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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.111.191801
http://cds.cern.ch/record/1569212
Descripción
Sumario:We present a measurement of form-factor independent angular observables in the decay $B^0\to K^{*}(892)^{0}\mu^+ \mu^-$. The analysis is based on a data sample corresponding to an integrated luminosity of 1.0 fb$^{-1}$, collected by the LHCb experiment in $pp$ collisions at a center-of-mass energy of 7TeV. Four observables are measured in six bins of the dimuon invariant mass squared, $q^2$, in the range 0.1 < $q^2$ < 19.0 GeV$^{2}/c^{4}$. Agreement with Standard Model predictions is found for 23 of the 24 measurements. A local discrepancy, corresponding to 3.7 Gaussian standard deviations, is observed in one $q^2$ bin for one of the observables. Considering the 24 measurements as independent, the probability to observe such a discrepancy, or larger, in one is 0.5%.