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First observation of B0 s→D*s2+Xμν̄- decays

  • R. Aaij
  • , B. Adeva
  • , M. Adinolfi
  • , C. Adrover
  • , A. Affolder
  • , M. Agari
  • , Z. Ajaltouni
  • , J. Albrecht
  • , F. Alessio
  • , M. Alexander
  • , P. Alvarez Cartelle
  • , A. A. Alves
  • , S. Amato
  • , Y. Amhis
  • , J. Amoraal
  • , J. Anderson
  • , R. Antunes Nobrega
  • , R. B. Appleby
  • , O. Aquines Gutierrez
  • , A. Arefyev
  • L. Arrabito, M. Artuso, E. Aslanides, G. Auriemma, S. Bachmann, D. S. Bailey, V. Balagura, W. Baldini, R. J. Barlow, C. Barschel, S. Barsuk, S. Basiladze, A. Bates, C. Bauer, T. Bauer, A. Bay, I. Bediaga, K. Belous, I. Belyaev, M. Benayoun, G. Bencivenni, R. Bernet, M. Bettler, M. van Beuzekom, S. Bifani, A. Bizzeti, P. M. Bjørnstad, T. Blake, F. Blanc, C. Blanks, J. Blouw, S. Blusk, A. Bobrov, V. Bocci, B. Bochin, A. Bondar, N. Bondar, W. Bonivento, S. Borghi, A. Borgia, E. Bos, T. Bowcock, C. Bozzi, T. Brambach, J. van den Brand, J. Bressieux, S. Brisbane, M. Britsch, T. Britton, N. H. Brook, H. Brown, A. Büchler-Germann, A. Bursche, J. Buytaert, S. Cadeddu, J. M. Caicedo Carvajal, O. Callot, M. Calvi, M. Calvo Gomez, A. Camboni, W. Cameron, L. Camilleri, P. Campana, A. Carbone, G. Carboni, R. Cardinale, A. Cardini, L. Carson, K. Carvalho Akiba, G. Casse, M. Cattaneo, M. Charles, P. Charpentier, J. Cheng, N. Chiapolini, A. Chlopik, J. Christiansen, P. Ciambrone, X. Cid Vidal, P. J. Clark, P. Clarke, M. Clemencic, H. V. Cliff, J. Closier, C. Coca, V. Coco, J. Cogan, P. Collins, F. Constantin, G. Conti, A. Contu, M. Coombes, G. Corti, G. A. Cowan, R. Currie, B. D'Almagne, C. D'Ambrosio, I. D'Antone, W. Da Silva, E. Dané, P. David, I. De Bonis, S. De Capua, M. De Cian, F. De Lorenzi, J. M. De Miranda, L. De Paula, P. De Simone, D. Decamp, H. Degaudenzi, M. Deissenroth, L. Del Buono, C. Deplano, O. Deschamps, F. Dettori, J. Dickens, H. Dijkstra, M. Dima, S. Donleavy, P. Dornan, D. Dossett, A. Dovbnya, F. Dupertuis, R. Dzhelyadin, C. Eames, S. Easo, U. Egede, V. Egorychev, S. Eidelman, D. van Eijk, F. Eisele, S. Eisenhardt, L. Eklund, D. G. d'Enterria, D. Esperante Pereira, L. Estève, E. Fanchini, C. Färber, G. Fardell, C. Farinelli, S. Farry, V. Fave, V. Fernandez Albor, M. Ferro-Luzzi, S. Filippov, C. Fitzpatrick, W. Flegel, F. Fontanelli, R. Forty, M. Frank, C. Frei, M. Frosini, J. L. Fungueirino Pazos, S. Furcas, A. Gallas Torreira, D. Galli, M. Gandelman, P. Gandini, Y. Gao, J. Garnier, J. Garofoli, L. Garrido, C. Gaspar, J. Gassner, N. Gauvin, P. Gavillet, M. Gersabeck, T. Gershon, P. Ghez, V. Gibson, V. V. Gligorov, C. Göbel, D. Golubkov, A. Golutvin, A. Gomes, G. Gong, H. Gong, H. Gordon, M. Grabalosa Gándara, R. Graciani Diaz, L. A. Granado Cardoso, E. Graugés, G. Graziani, A. Grecu, S. Gregson, B. Gui, E. Gushchin, Y. Guz, Z. Guzik, T. Gys, G. Haefeli, S. C. Haines, T. Hampson, S. Hansmann-Menzemer, R. Harji, N. Harnew, P. F. Harrison, J. He, K. Hennessy, P. Henrard, J. A. Hernando Morata, E. van Herwijnen, A. Hicheur, E. Hicks, H. J. Hilke, W. Hofmann, K. Holubyev, P. Hopchev, W. Hulsbergen, P. Hunt, T. Huse, R. S. Huston, D. Hutchcroft, V. Iakovenko, C. Iglesias Escudero, C. Ilgner, P. Ilten, J. Imong, R. Jacobsson, M. Jahjah Hussein, E. Jans, F. Jansen, P. Jaton, B. Jean-Marie, F. Jing, M. John, D. Johnson, C. R. Jones, B. Jost, F. Kapusta, T. M. Karbach, A. Kashchuk, J. Keaveney, U. Kerzel, T. Ketel, A. Keune, B. Khanji, Y. M. Kim, M. Knecht, S. Koblitz, A. Konoplyannikov, P. Koppenburg, M. Korolev, A. Kozlinskiy, L. Kravchuk, G. Krocker, P. Krokovny, F. Kruse, K. Kruzelecki, M. Kucharczyk, S. Kukulak, R. Kumar, T. Kvaratskheliya, V. N. La Thi, D. Lacarrere, G. Lafferty, A. Lai, R. W. Lambert, G. Lanfranchi, C. Langenbruch, T. Latham, R. Le Gac, J. van Leerdam, J. Lees, R. Lefèvre, A. Leflat, J. Lefrançois, F. Lehner, O. Leroy, T. Lesiak, L. Li, Y. Y. Li, L. Li Gioi, J. Libby, M. Lieng, M. Liles, R. Lindner, C. Linn, B. Liu, G. Liu, S. Löchner, J. H. Lopes, E. Lopez Asamar, N. Lopez-March, J. Luisier, B. M'charek, F. Machefert, I. V. Machikhiliyan, F. Maciuc, O. Maev, J. Magnin, A. Maier, S. Malde, R. Mamunur, G. Manca, G. Mancinelli, N. Mangiafave, U. Marconi, R. Märki, J. Marks, G. Martellotti, A. Martens, L. Martin, A. Martin Sanchez, D. Martinez Santos, A. Massafferri, Z. Mathe, C. Matteuzzi, M. Matveev, V. Matveev, E. Maurice, B. Maynard, A. Mazurov, G. McGregor, R. McNulty, C. Mclean, M. Meissner, M. Merk, J. Merkel, M. Merkin, R. Messi, S. Miglioranzi, D. A. Milanes, M. Minard, S. Monteil, D. Moran, P. Morawski, J. V. Morris, J. Moscicki, R. Mountain, I. Mous, F. Muheim, K. Müller, R. Muresan, F. Murtas, B. Muryn, M. Musy, J. Mylroie-Smith, P. Naik, T. Nakada, R. Nandakumar, J. Nardulli, A. Nawrot, M. Nedos, M. Needham, N. Neufeld, P. Neustroev, M. Nicol, S. Nies, V. Niess, N. Nikitin, A. Oblakowska-Mucha, V. Obraztsov, S. Oggero, O. Okhrimenko, R. Oldeman, M. Orlandea, A. Ostankov, B. Pal, J. Palacios, M. Palutan, J. Panman, A. Papanestis, M. Pappagallo, C. Parkes, C. J. Parkinson, G. Passaleva, G. D. Patel, M. Patel, S. K. Paterson, G. N. Patrick, C. Patrignani, E. Pauna, C. Pauna Chiojdeanu, C. Pavel Nicorescu, A. Pazos Alvarez, A. Pellegrino, G. Penso, M. Pepe Altarelli, S. Perazzini, D. L. Perego, E. Perez Trigo, A. Pérez-Calero Yzquierdo, P. Perret, G. Pessina, A. Petrella, A. Petrolini, B. Pie Valls, B. Pietrzyk, D. Pinci, R. Plackett, S. Playfer, M. Plo Casasus, G. Polok, A. Poluektov, E. Polycarpo, D. Popov, B. Popovici, C. Potterat, A. Powell, S. Pozzi, T. du Pree, V. Pugatch, A. Puig Navarro, W. Qian, J. H. Rademacker, B. Rakotomiaramanana, I. Raniuk, G. Raven, S. Redford, W. Reece, A. C. dos Reis, S. Ricciardi, K. Rinnert, D. A. Roa Romero, P. Robbe, E. Rodrigues, F. Rodrigues, C. Rodriguez Cobo, P. Rodriguez Perez, G. J. Rogers, V. Romanovsky, J. Rouvinet, T. Ruf, H. Ruiz, V. Rusinov, G. Sabatino, J. J. Saborido Silva, N. Sagidova, P. Sail, B. Saitta, C. Salzmann, A. Sambade Varela, M. Sannino, R. Santacesaria, R. Santinelli, E. Santovetti, M. Sapunov, A. Saputi, A. Sarti, C. Satriano, A. Satta, M. Savrie, D. Savrina, P. Schaack, M. Schiller, S. Schleich, M. Schmelling, B. Schmidt, O. Schneider, T. Schneider, A. Schopper, M. Schune, R. Schwemmer, A. Sciubba, M. Seco, A. Semennikov, K. Senderowska, N. Serra, J. Serrano, B. Shao, M. Shapkin, I. Shapoval, P. Shatalov, Y. Shcheglov, T. Shears, L. Shekhtman, O. Shevchenko, V. Shevchenko, A. Shires, E. Simioni, H. P. Skottowe, T. Skwarnicki, N. Smale, A. Smith, A. C. Smith, K. Sobczak, F. Soler, A. Solomin, P. Somogy, F. Soomro, B. Souza De Paula, B. Spaan, A. Sparkes, E. Spiridenkov, P. Spradlin, A. Srednicki, F. Stagni, S. Steiner, O. Steinkamp, O. Stenyakin, S. Stoica, S. Stone, B. Storaci, U. Straumann, N. Styles, M. Szczekowski, P. Szczypka, T. Szumlak, S. T'Jampens, V. Talanov, E. Tarkovskiy, E. Teodorescu, H. Terrier, F. Teubert, C. Thomas, E. Thomas, J. van Tilburg, V. Tisserand, M. Tobin, S. Topp-Joergensen, M. T. Tran, S. Traynor, U. Trunk, A. Tsaregorodtsev, N. Tuning, A. Ukleja, P. Urquijo, U. Uwer, V. Vagnoni, G. Valenti, R. Vazquez Gomez, P. Vazquez Regueiro, S. Vecchi, J. J. Velthuis, M. Veltri, K. Vervink, B. Viaud, I. Videau, X. Vilasis-Cardona, J. Visniakov, A. Vollhardt, D. Voong, A. Vorobyev, A. Vorobyev, H. Voss, K. Wacker, S. Wandernoth, J. Wang, D. R. Ward, A. D. Webber, D. Websdale, M. Whitehead, D. Wiedner, L. Wiggers, G. Wilkinson, M. P. Williams, M. Williams, F. F. Wilson, J. Wishahi, M. Witek, W. Witzeling, S. A. Wotton, K. Wyllie, Y. Xie, F. Xing, Z. Yang, G. Ybeles Smit, R. Young, O. Yushchenko, M. Zavertyaev, M. Zeng, L. Zhang, W. C. Zhang, Y. Zhang, A. Zhelezov, L. Zhong, E. Zverev
  • National Institute for Subatomic Physics
  • University of Santiago de Compostela
  • University of Bristol
  • Aix-Marseille Université
  • University of Liverpool
  • Max Planck Institute for Nuclear Physics
  • Université Clermont Auvergne
  • CERN
  • University of Glasgow
  • National Institute for Nuclear Physics
  • Universidade Federal do Rio de Janeiro
  • Swiss Federal Institute of Technology Lausanne
  • University of Zurich
  • University of Manchester
  • Alikhanov Institute for Theoretical and Experimental Physics
  • IN2P3-CNRS
  • Syracuse University
  • Heidelberg University 
  • Université Paris-Sud
  • Lomonosov Moscow State University
  • Centro Brasileiro de Pesquisas Físicas
  • Institute for High Energy Physics of National Research Centre ‘Kurchatov Institute’
  • Université Pierre et Marie Curie
  • University College Dublin
  • Imperial College London
  • Budker Institute of Nuclear Physics of the Siberian Branch of the RAS
  • Nuclear Physics Institute
  • TU Dortmund University
  • Vrije Universiteit Amsterdam
  • University of Oxford
  • University of Barcelona
  • Tsinghua University
  • Andrzej Soltan Institute for Nuclear Studies
  • University of Edinburgh
  • University of Cambridge
  • Horia Hulubei National Institute of Physics and Nuclear Engineering
  • Université Savoie Mont Blanc
  • University of Warwick
  • NASU - Kharkov Institute of Physics and Technology
  • Rutherford Appleton Laboratory
  • Institute for Nuclear Research of the Russian Academy of Sciences
  • Pontifícia Universidade Católica do Rio de Janeiro
  • NASU - Institute of Nuclear Research
  • Polish Academy of Sciences
  • Faculty of Physics and Applied Computer Science

Research output: Contribution to journalArticlepeer-review

36 Scopus citations

Abstract

Using data collected with the LHCb detector in proton-proton collisions at a centre-of-mass energy of 7 TeV, the semileptonic decays B0 s→D+ s+Xμν̄ and B0 s→D0K+Xμν̄ are detected. Two structures are observed in the D0K+ mass spectrum at masses consistent with the known Ds1(2536)+ and Ds2*(2573)+ mesons. The measured branching fractions relative to the total B-s0 semileptonic rate are B(B0 s→Ds2*+Xμν̄)/B(B0 s→Xμν̄)=(3.3±1.0±0.4)%, and B(B0 s→D+ s1Xμν̄)/B(B0 s→Xμν̄)=(5.4±1.2±0.5)%, where the first uncertainty is statistical and the second is systematic. This is the first observation of the D*+ s2 state in B0 s decays; we also measure its mass and width.

Original languageEnglish
Pages (from-to)14-20
Number of pages7
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume698
Issue number1
DOIs
StatePublished - Mar 28 2011

Keywords

  • B-s0 meson
  • LHC
  • Semileptonic b decays

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