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First observation of B+ → D + s K+K− decays and a search for B+ → D + s ϕ decays
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Observation of the B s 0 $$ {B}_s^0 $$ → D*±D∓ decay

09 March 2021

The LHCb collaboration, R. Aaij, … G. Zunica

Evidence for the decay B S 0 → K ¯ ∗ 0 μ + μ − $$ {B}_S^0\to {\overline{K}}^{\ast 0}{\mu}^{+}{\mu}^{-} $$

03 July 2018

The LHCb collaboration, R. Aaij, … S. Zucchelli

Measurement of branching fraction ratios for B+ → D*+D−K+, B+ → D*−D+K+, and B0 → D*−D0K+ decays

21 December 2020

The LHCb collaboration, R. Aaij, … G. Zunica

Observation of the doubly Cabibbo-suppressed decays D+ → K+π0π0 and D+ → K+π0η

14 September 2022

The BESIII collaboration, M. Ablikim, … J. H. Zou

First search for the ηc2(1D) in B decays at Belle

08 May 2020

The Belle collaboration, K. Chilikin, … V. Zhulanov

Measurement of CP observables in B± → D(*)K± and B± → D(*)π± decays using two-body D final states

09 April 2021

The LHCb collaboration, R. Aaij, … G. Zunica

Search for the decay B0 → ϕμ+μ−

11 May 2022

The LHCb collaboration, R. Aaij, … G. Zunica

Search for the lepton flavour violating decay B+ → K+μ−τ+ using B s 2 ∗ 0 $$ {B}_{s2}^{\ast 0} $$ decays

22 June 2020

The LHCb collaboration, R. Aaij, … S. Zucchelli

Observation of Λ b 0 $$ {\Lambda}_b^0 $$ → D+pπ−π− and Λ b 0 $$ {\Lambda}_b^0 $$ → D*+pπ−π− decays

23 March 2022

The LHCb collaboration, R. Aaij, … G. Zunica

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  • Regular Article - Experimental Physics
  • Open Access
  • Published: 26 January 2018

First observation of B+ → D + s K+K− decays and a search for B+ → D + s ϕ decays

  • The LHCb collaboration,
  • R. Aaij40,
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  • M. Adinolfi48,
  • Z. Ajaltouni5,
  • S. Akar59,
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Journal of High Energy Physics volume 2018, Article number: 131 (2018) Cite this article

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A preprint version of the article is available at arXiv.

Abstract

A search for B+ → D + s K+K− decays is performed using pp collision data corresponding to an integrated luminosity of 4.8 fb−1, collected at centre-of-mass energies of 7, 8 and 13 TeV with the LHCb experiment. A significant signal is observed for the first time and the branching fraction is determined to be

$$ \mathrm{\mathcal{B}}\left({B}^{+}\to {D}_s^{+}{K}^{+}{K}^{-}\right)=\left(7.1 \pm 0.5 \pm 0.6 \pm 0.7\right)\times 1{0}^{-6}, $$

where the first uncertainty is statistical, the second systematic and the third due to the uncertainty on the branching fraction of the normalisation mode \( {B}^{+}\to {D}_s^{+}{\overline{D}}^0 \). A search is also performed for the pure annihilation decay B+ → D + s ϕ. No significant signal is observed and a limit of

$$ \mathrm{\mathcal{B}}\left({B}^{+}\to {D}_s^{+}\phi \right)<4.9 \times 1{0}^{-7}\left(4.2 \times 1{0}^{-7}\right) $$

is set on the branching fraction at 95% (90%) confidence level.

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  1. Centro Brasileiro de Pesquisas Físicas (CBPF), Rio de Janeiro, Brazil

    I. Bediaga, M. Cruz Torres, J. M. De Miranda, A. Gomes, A. Massafferri, J. Molina Rodriguez, A. C. dos Reis, A. B. Rodrigues, l. Soares Lavra & R. Tourinho Jadallah Aoude

  2. Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil

    S. Amato, K. Carvalho Akiba, F. Da Cunha Marinho, L. De Paula, F. Ferreira Rodrigues, M. Gandelman, A. Hicheur, J. H. Lopes, I. Nasteva, J. M. Otalora Goicochea, E. Polycarpo, C. Potterat, M. S. Rangel, L. Silva de Oliveira & B. Souza De Paula

  3. Center for High Energy Physics, Tsinghua University, Beijing, China

    L. An, A. Davis, Y. Gao, F. Jiang, T. Li, X. Liu, J. Sun, Z. Yang, L. Zhang & X. Zhu

  4. LAPP, Université Savoie Mont-Blanc, CNRS/IN2P3, Annecy-Le-Vieux, France

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    B. Adeva, M. Borsato, V. Chobanova, X. Cid Vidal, A. Dosil Suárez, A. Fernandez Prieto, A. Gallas Torreira, J. García Pardiñas, E. Lemos Cid, M. Lucio Martinez, D. Martinez Santos, M. Plo Casasus, J. Prisciandaro, M. Ramos Pernas, A. Romero Vidal, J. J. Saborido Silva, B. Sanmartin Sedes, C. Santamarina Rios, P. Vazquez Regueiro, M. Vieites Diaz & C. Vázquez Sierra

  40. European Organization for Nuclear Research (CERN), Geneva, Switzerland

    R. Aaij, F. Alessio, C. Barschel, I. Belyaev, M.-O. Bettler, C. Bozzi, J. Buytaert, W. Byczynski, D. H. Campora Perez, M. Cattaneo, G. Cavallero, Ph. Charpentier, S.-G. Chitic, V. Chobanova, M. Clemencic, J. Closier, P. Collins, T. Colombo, A. Contu, G. Coombs, G. Corti, B. Couturier, C. D’Ambrosio, O. De Aguiar Francisco, K. De Bruyn, A. Di Canto, H. Dijkstra, F. Dordei, M. Dorigo, P. Durante, A. Dziurda, P. Fernandez Declara, M. Ferro-Luzzi, K. Fohl, M. Fontana, R. Forty, M. Frank, C. Frei, W. Funk, C. Färber, C. Gaspar, L. A. Granado Cardoso, L. Gruber, T. Gys, C. Haen, C. Hasse, M. Hatch, E. van Herwijnen, R. Jacobsson, D. Johnson, C. Joram, B. Jost, M. Karacson, T. Kvaratskheliya, D. Lacarrere, A. Leflat, F. Lemaitre, R. Lindner, O. Lupton, O. Maev, R. Matev, Z. Mathe, M. McCann, A. Merli, N. Neri, N. Neufeld, M. Palutan, G. Passaleva, A. Pearce, M. Pepe Altarelli, S. Perazzini, F. Pisani, S. Ponce, D. Popov, M. Ravonel Salzgeber, M. Rihl, S. Roiser, T. Ruf, H. Schindler, B. Schmidt, A. Schopper, R. Schwemmer, P. Seyfert, S. Sridharan, F. Stagni, S. Stahl, F. Teubert, E. Thomas, A. Trisovic, N. Tuning, V. Vagnoni, A. Valassi, S. Valat, R. Vazquez Gomez, J. V. Viana Barbosa, B. Voneki, M. Whitehead, F. F. Wilson & K. Wyllie

  41. Institute of Physics, Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland

    G. Andreassi, V. Battista, A. Bay, V. Bellee, F. Blanc, C. Fitzpatrick, S. Gianí, O. G. Girard, G. Haefeli, P. H. Hopchev, C. Khurewathanakul, A. K. Kuonen, V. Macko, M. Marinangeli, P. Marino, M. Martinelli, B. Maurin, T. Nakada, T. D. Nguyen, C. Nguyen-Mau, P. R. Pais, L. Pescatore, O. Schneider, M. Schubiger, P. Stefko, M. E. Stramaglia, M. Tobin & M. T. Tran

  42. Physik-Institut, Universität Zürich, Zürich, Switzerland

    M. Atzeni, R. Bernet, C. Betancourt, Ia. Bezshyiko, E. Bowen, M. Chrzaszcz, E. Graverini, F. Lionetto, A. Mauri, K. Müller, P. Owen, A. Puig Navarro, N. Serra, R. Silva Coutinho, O. Steinkamp, B. Storaci, U. Straumann, M. Tresch, A. Vollhardt & A. Weiden

  43. Nikhef National Institute for Subatomic Physics, Amsterdam, The Netherlands

    S. Ali, F. Archilli, L. J. Bel, S. Benson, M. van Beuzekom, G. Ciezarek, E. Dall’Occo, L. Dufour, E. Govorkova, W. Hulsbergen, E. Jans, P. Koppenburg, M. Merk, M. Mulder, A. Pellegrino, J. van Tilburg, P. Tsopelas, N. Tuning, M. van Veghel & J. A. de Vries

  44. Nikhef National Institute for Subatomic Physics and VU University Amsterdam, Amsterdam, The Netherlands

    T. Ketel, G. Raven & V. Syropoulos

  45. NSC Kharkiv Institute of Physics and Technology (NSC KIPT), Kharkiv, Ukraine

    A. Dovbnya, S. Kandybei, I. Raniuk & I. Shapoval

  46. Institute for Nuclear Research of the National Academy of Sciences (KINR), Kyiv, Ukraine

    S. Koliiev & V. Pugatch

  47. University of Birmingham, Birmingham, United Kingdom

    S. Bifani, R. Calladine, G. Chatzikonstantinidis, N. Farley, C. Lazzeroni, A. Mazurov, A. Sergi, N. K. Watson, M. P. Williams, T. Williams & K. A. Zarebski

  48. H.H. Wills Physics Laboratory, University of Bristol, Bristol, United Kingdom

    M. Adinolfi, E. Buchanan, M. G. Chapman, A. Cook, J. Dalseno, S. T. Harnew, J. M. Kariuki, S. Maddrell-Mander, P. Naik, K. Petridis, G. J. Pomery, E. Price, C. Prouve, R. Quagliani, J. H. Rademacker, S. Richards, D. M. Saunders, N. Skidmore & J. J. Velthuis

  49. Cavendish Laboratory, University of Cambridge, Cambridge, United Kingdom

    H. V. Cliff, H. M. Evans, J. Garra Tico, P. J. Garsed, V. Gibson, S. C. Haines, C. R. Jones, F. Keizer, M. Kenzie, M. Sirendi, J. Smith, S. Tolk, A. Tully, M. Vitti, D. R. Ward & S. A. Wotton

  50. Department of Physics, University of Warwick, Coventry, United Kingdom

    J. J. Back, T. Blake, C. M. Costa Sobral, A. Crocombe, T. Gershon, M. Kreps, T. Latham, D. Loh, A. Mathad, E. Millard, D. P. O’Hanlon, A. Poluektov, W. Qian, C. Wallace & J. Wicht

  51. STFC Rutherford Appleton Laboratory, Didcot, United Kingdom

    S. Easo, R. Nandakumar, A. Papanestis, S. Ricciardi & F. F. Wilson

  52. School of Physics and Astronomy, University of Edinburgh, Edinburgh, United Kingdom

    L. Carson, P. E. L. Clarke, G. A. Cowan, R. Currie, M. Ebert, S. Eisenhardt, D. Ferguson, E. Gabriel, S. Gambetta, K. Gizdov, H. Luo, A. B. Morris, F. Muheim, M. Needham, S. Playfer, I. T. Smith & J. B. Zonneveld

  53. School of Physics and Astronomy, University of Glasgow, Glasgow, United Kingdom

    M. Alexander, J. Beddow, C. T. Dean, L. Douglas, L. Eklund, S. Karodia, I. Longstaff, M. Schiller, F. J. P. Soler, P. Spradlin, M. Traill & K. Wraight

  54. Oliver Lodge Laboratory, University of Liverpool, Liverpool, United Kingdom

    T. J. V. Bowcock, G. Casse, F. Dettori, K. Dreimanis, S. Farry, V. Franco Lima, K. Hennessy, D. Hutchcroft, J. V. Mead, K. Rinnert, T. Shears & H. M. Wark

  55. Imperial College London, London, United Kingdom

    P. Alvarez Cartelle, S. Baker, U. Egede, A. Golutvin, M. Hecker, T. Humair, F. Kress, M. McCann, M. Patel, F. Redi, E. Smith, M. Smith, S. Stefkova, W. Sutcliffe, M. J. Tilley & D. Websdale

  56. School of Physics and Astronomy, University of Manchester, Manchester, United Kingdom

    R. B. Appleby, I. Babuschkin, R. J. Barlow, W. Barter, S. Borghi, C. Burr, L. Capriotti, S. De Capua, E. Gersabeck, M. Gersabeck, C. Hombach, S. Klaver, G. Lafferty, K. Maguire, A. McNab, D. Müller, C. Parkes, G. Sarpis & M. Williams

  57. Department of Physics, University of Oxford, Oxford, United Kingdom

    M. Bjørn, S. F. Cheung, T. Evans, B. R. Gruberg Cazon, T. Hadavizadeh, T. H. Hancock, N. Harnew, D. Hill, J. Jalocha, M. John, N. Jurik, S. Malde, A. Nandi, H. Pullen, A. Rollings, G. Veneziano, M. Vesterinen & G. Wilkinson

  58. Massachusetts Institute of Technology, Cambridge, MA, United States

    T. Boettcher, D. C. Craik, P. Ilten, C. Weisser & M. Williams

  59. University of Cincinnati, Cincinnati, OH, United States

    S. Akar, A. A. Alves Jr, Z. C. Huard, B. Meadows, E. Rodrigues, H. F. Schreiner & M. D. Sokoloff

  60. University of Maryland, College Park, MD, United States

    J. E. Andrews, B. Hamilton, A. Jawahery, W. Parker, J. Wimberley & Z. Yang

  61. Syracuse University, Syracuse, NY, United States

    M. Artuso, A. Beiter, S. Blusk, T. Britton, S. Ely, D. C. Forshaw, M. Kelsey, Z. Li, R. Mountain, I. Polyakov, M. S. Rudolph, T. Skwarnicki, S. Stone, F. Toriello, A. Venkateswaran, J. Wang, M. Wilkinson, Y. Yao & X. Yuan

  62. Pontifícia Universidade Católica do Rio de Janeiro (PUC-Rio), Rio de Janeiro, Brazil

    C. Baesso, C. Göbel & V. Salustino Guimaraes

  63. University of Chinese Academy of Sciences, Beijing, China

    N. Beliy, J. He, P.-R. Li, X. Lyu, M. Szymanski, D. Vieira & Y. Zheng

  64. School of Physics and Technology, Wuhan University, Wuhan, China

    H. Cai & L. Sun

  65. Institute of Particle Physics, Central China Normal University, Wuhan, Hubei, China

    B. Dey, W. Hu, Y. Xie, M. Xu, H. Yin & J. Yu

  66. Departamento de Fisica, Universidad Nacional de Colombia, Bogota, Colombia

    D. A. Milanes, I. A. Monroy & J. A. Rodriguez Lopez

  67. Institut für Physik, Universität Rostock, Rostock, Germany

    O. Grünberg, M. Heß, N. Meinert, H. Viemann & R. Waldi

  68. National Research Centre Kurchatov Institute, Moscow, Russia

    T. Likhomanenko, A. Malinin, O. Morgunova, A. Nogay, A. Petrov & V. Shevchenko

  69. National Research Tomsk Polytechnic University, Tomsk, Russia

    A. Vagner

  70. Instituto de Fisica Corpuscular, Centro Mixto Universidad de Valencia CSIC, Valencia, Spain

    L. M. Garcia Martin, L. Henry, F. Martinez Vidal, A. Oyanguren, C. Remon Alepuz, P. Ruiz Valls, J. Ruiz Vidal & C. Sanchez Mayordomo

  71. Van Swinderen Institute, University of Groningen, Groningen, The Netherlands

    C. J. G. Onderwater

  72. Universidade Federal do Triângulo Mineiro (UFTM), Uberaba-MG, Brazil

    A. Gomes

  73. Laboratoire Leprince-Ringuet, Palaiseau, France

    V. Balagura, F. Fleuret & E. Maurice

  74. P.N. Lebedev Physical Institute, Russian Academy of Science (LPI RAS), Moscow, Russia

    M. Zavertyaev

  75. Università di Bari, Bari, Italy

    M. De Serio, A. Palano, M. Pappagallo, A. Pastore & S. Simone

  76. Università di Bologna, Bologna, Italy

    A. Carbone, D. Galli & C. Patrignani

  77. Università di Cagliari, Cagliari, Italy

    A. Bursche, V. Cogoni, G. Manca, R. Oldeman, B. Saitta & C. Vacca

  78. Università di Ferrara, Ferrara, Italy

    M. Andreotti, R. Calabrese, M. Corvo, M. Fiorini, E. Luppi, L. L. Pappalardo, G. Tellarini & L. Tomassetti

  79. Università di Genova, Genova, Italy

    R. Cardinale, G. Cavallero, F. Fontanelli, A. Petrolini & A. Pistone

  80. Università di Milano Bicocca, Milano, Italy

    N. Belloli, M. Calvi, P. Carniti, D. Fazzini & C. Gotti

  81. Università di Roma Tor Vergata, Roma, Italy

    G. Carboni, E. Furfaro & E. Santovetti

  82. Università di Roma La Sapienza, Roma, Italy

    A. Sarti & A. Sciubba

  83. AGH - University of Science and Technology, Faculty of Computer Science, Electronics and Telecommunications, Kraków, Poland

    W. Kucewicz

  84. LIFAELS, La Salle, Universitat Ramon Llull, Barcelona, Spain

    A. Badalov, M. Calvo Gomez, A. Camboni & X. Vilasis-Cardona

  85. Hanoi University of Science, Hanoi, Vietnam

    C. Nguyen-Mau

  86. Università di Padova, Padova, Italy

    D. Lucchesi & G. Simi

  87. Università di Pisa, Pisa, Italy

    G. Punzi & S. Stracka

  88. Università degli Studi di Milano, Milano, Italy

    J. Fu, D. Marangotto, A. Merli & M. Petruzzo

  89. Università di Urbino, Urbino, Italy

    M. Veltri

  90. Università della Basilicata, Potenza, Italy

    C. Satriano

  91. Scuola Normale Superiore, Pisa, Italy

    R. Cenci & M. J. Morello

  92. Università di Modena e Reggio Emilia, Modena, Italy

    A. Bizzeti

  93. Iligan Institute of Technology (IIT), Iligan, Philippines

    J. Maratas

  94. Novosibirsk State University, Novosibirsk, Russia

    A. Bondar, S. Eidelman, P. Krokovny, V. Kudryavtsev, T. Maltsev, L. Shekhtman & V. Vorobyev

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