First observation of (B)over-bar(0) -> J/psi K+K- and search for (B)over-bar(0) -> J/psi phi decays

  title={First observation of (B)over-bar(0) -> J/psi K+K- and search for (B)over-bar(0) -> J/psi phi decays},
  author={LHCb collaboration R. Aaij and Bernardo Adeva and Marianna Adinolfi and C. Adrover and A. A. Affolder and Ziad Ajaltouni and Johannes Albrecht and Federico Alessio and Magazinov Alexander and S. Ali and Georgy Alkhazov and P. Alvarez Cartelle and A. A. Alves and Sandra Amato and Silvia Amerio and Yasmine Amhis and Letizia Anderlini and Jacob Anderson and Rikke Andreassen and J. E. Andrews and R. B. Appleby and Osvaldo Aquines Guti{\'e}rrez and Flavio Archilli and Andrei Artamonov and Marina Artuso and Elie Aslanides and Giulio Auriemma and Marouen Baalouch and Sebastian Bachmann and J. J. Back and Clarissa Baesso and Vladislav Balagura and Wander Baldini and R. J. Barlow and Colin Barschel and S. Barsuk and William Barter and Th. Bauer and Anders Bay and John Beddow and Franco Bedeschi and Ignacio Bediaga and S. A. Belogurov and Konstantin Belous and I. Belyaev and Eric Benhaim and Giovanni Bencivenni and Sean Benson and Jack S Benton and Alexander Berezhnoy and R. Bernet and M. -O. Bettler and Martinus van Beuzekom and Anna Bie{\~n} and Simone Bifani and Thomas Bird and Andrea Bizzeti and P. M. Bj{\o}rnstad and Thomas Blake and Fr'ed'eric Blanc and Johan Blouw and Steven Blusk and Valerio Bocci and Alexander Bondar and N. Bondar and Walter Bonivento and Silvia Borghi and A. Borgia and T. J. V. Bowcock and Eric Bowen and C. Bozzi and T. Brambach and J. van den Brand and Jo{\"e}l Bressieux and David Brett and Markward Britsch and Tom Britton and N. H. Brook and Henry Brown and Albert Bursche and Giorgio Busetto and Jan Buytaert and Sandro Cadeddu and Olivier Callot and M. Calvi and Michael Gomez and Alessandro Camboni and Pierluigi Campana and D. H. Campora Perez and A. Carbone and Giovanni Carboni and Roberta Cardinale and Alessandro Cardini and H. Carranza-Mejia and L. Carson and Kazuyoshi Carvalho Akiba and G. Casse and Lorenzo Cassina and Lucia Castillo Garcia and Marco Cattaneo and Ch. Cauet and Riccardo Cenci and M. J. Charles and Ph. Charpentier and Pengcheng Chen and S. F. Cheung and Nicola Chiapolini and Marcin Jakub Chrzaszcz and Krzysztof Ciba and Xavier Vidal and Gregory Max Ciezarek and P. E. L. Clarke and Marco Clemencic and Harry Cliff and Joel Closier and C. Coca and Victor Coco and Julien Cogan and Eric Cogneras and Pieter Collins and Albert Comerma-Montells and Andrea Contu and Adam Cook and M. Coombes and Samuel Coquereau and Gloria Corti and Benjamin Couturier and G. A. Cowan and D. C. Craik and Samuel Cunliffe and Robert T. Currie and Claudia D'Ambrosio and P. N. Y. David and Adam Davis and Ida de Bonis and Kristof De Bruyn and Stefano De Capua and Michel De Cian and J. M. De Miranda and Leandro De Paula and W. De Silva and P. De Simone and Daniel Decamp and Mirko Deckenhoff and Luigi Del Buono and Nicolas Déléage and Denis Derkach and Olivier Deschamps and Francesco Dettori and A. Di Canto and H. G. Six Dijkstra and Manuel Dogaru and S. Domingo Donleavy and Francesca Dordei and A. Dosil Su'arez and David Dossett and Anatoliy Dovbnya and Fr{\'e}d{\'e}ric Dupertuis and Paolo Durante and R. Dzhelyadin and Agnieszka Dziurda and A. S. Dzyuba and Sajan Easo and Ulrik Egede and Victor Egorychev and Semen Eidelman and Daan van Eijk and Sara Eisenhardt and Ulrich Eitschberger and Robert Jan Ekelhof and Lars Eklund and Ibrahim El Rifai and Ch. Elsasser and Antonio Falabella and C. Farber and Chiara Farinelli and Stephen Farry and D. Ferguson and V. Fernandez Albor and F. Ferreira Rodrigues and Massimiliano Ferro-Luzzi and Sergey P. Filippov and Massimiliano Fiore and Conor Fitzpatrick and M. Fontana and Flavio Fontanelli and Roger Forty and O. De Aguiar Francisco and M. Frank and Christopher M. Frei and Maddalena Frosini and Emiliano Furfaro and A. Gallas Torreira and Dina Galli and Miriam Gandelman and Piero Gandini and Yan Gao and J. Garofoli and Paola Garosi and Jordi Garra Tico and Ll. Garrido and C. Gaspar and Rhorry Gauld and Evelina Mihova Gersabeck and Marco Gersabeck and Timothy Gershon and Ph. Ghez and Val Gibson and L. E. Giubega and V. V. Gligorov and Carla Gobel and Dmitry Golubkov and A. I. Golutvin and Alvaro Gomes and Petr Andreevich Gorbounov and Hamish Gordon and M. Grabalosa G'andara and R. Graciani Diaz and L. A. Granado Cardoso and Eugeni Grauges and Giacomo Graziani and Alexandru Grecu and Emma Greening and Sam Gregson and P. Griffith and Oliver Grunberg and B. Gui and Evgeny Gushchin and Yu. Guz and Thierry Gys and Ch. Hadjivasiliou and Guido Haefeli and Christophe Haen and S. C. Haines and Stephen Hall and Brian Hamilton and T. Hampson and Stephanie Hansmann-Menzemer and Neville Harnew and S. T. Harnew and Jenny Harrison and Th Hartmann and Jin-chuan He and T. Head and Veerle Heijne and Karol Hennessy and Pierre Henrard and J. A. Hernando Morata and E. van Herwijnen and Markus Hess and Adl{\`e}ne Hicheur and Elizabeth Hicks and D. Hill and M. Hoballah and P. H. Hopchev and Wouter Hulsbergen and Peter Hunt and T. Huse and N. Hussain and David Hutchcroft and Daniel Hynds and Viktor Iakovenko and M. Idzik and P. Ilten and R. Jacobsson and Anne J{\"a}ger and Eddy Jans and Pierre Jaton and Abolhassan Jawahery and Feifei Jing and Malcolm John and D. Johnson and C. R. Jones and Christian Joram and Britta Jost and M. Kaballo and S. S. Kandybei and Walaa Kanso and Matthias Karacson and T. M. Karbach and I. R. Kenyon and Tjeerd Ketel and Basem Khanji and Olga Kochebina and I. Komarov and R. F. Koopman and Patrick Koppenburg and Maxim Korolev and Alexandr Kozlinskiy and L. N. Kravchuk and K. Kreplin and Michal Kreps and Georg Alexander Krocker and Pavel Krokovny and Florian Kruse and Marcin Kucharczyk and V. Kudryavtsev and K. Kurek and Tengiz Kvaratskheliya and V. N. La Thi and Daniel Lacarrere and George Lafferty and Alessandro Lai and D. Lambert and R. W. Lambert and E. Lanciotti and Gaia Lanfranchi and Ch. Langenbruch and Te Latham and Cristina Lazzeroni and R. Le Gac and J. van Leerdam and J. -P. Lees and R. L. R. Lefevre and Alexander Leflat and J. Lefranccois and Sabato Leo and Olivier Leroy and Tadeusz Lesiak and Blake Leverington and Y. Y. Li and L. Li Gioi and Maurine Liles and Rolf Lindner and Christian Linn and Baodan Liu and Guangkun Liu and Stefan Lohn and Ian Dennis Longstaff and J. H. Lopes and N. Lopez-march and H. Lu and D. L. Lucchesi and Johan Luisier and H. Luo and Oliver Lupton and Fr{\'e}d{\'e}ric Machefert and I. V. Machikhiliyan and Florin Maciuc and O. E. Maev and Sneha Malde and G. Manca and G. Mancinelli and J. Maratas and Umberto Marconi and Piero Marino and R. Marki and Joerg Marks and Giuseppe Martellotti and Aur{\'e}lien Martens and A. Mart'in S'anchez and M. Martinelli and D. Martinez Santos and D. Martins Tostes and Alexander Martynov and Andr{\'e} Massafferri and R. Matev and Z. Mathe and Clara Matteuzzi and Emmanuel Maurice and A. Mazurov and J. McCarthy and A. Mcnab and Ronan McNulty and B. McSkelly and Brian Meadows and Florian Meier and Marco Meissner and M. Merk and D. A. Milanes and M. -N. Minard and J. Molina Rodriguez and St{\'e}phane Monteil and Dermot Moran and Piotr Morawski and A. Mord{\`a} and M. J. Morello and Raymond Mountain and I. Mous and Franz Muheim and Klaus Muller and Radu Muresan and Bogdan Muryn and B. Muster and Pavan Naik and Tatsuya Nakada and Raja Nandakumar and Irina Nasteva and M F Needham and Sebastian Neubert and Niko Neufeld and A. D. Nguyen and T. D. Nguyen and Chung Nguyen-Mau and M. Nicol and Valentin Niess and Ramon Niet and Nikolai Nikitin and Thomas Nikodem and Andrei Nomerotski and Andrey Novoselov and A. Oblakowska-Mucha and Vladimir Obraztsov and S. Oggero and S. Ogilvy and Oksana Okhrimenko and Rudolf Oldeman and Marius Orlandea and J. M. Otalora Goicochea and Patrick Owen and Arantza Oyanguren and B. K. Pal and Antimo Palano and Matteo Palutan and Jaap Panman and A. Papanestis and Marco Pappagallo and Chris Parkes and C. J. Parkinson and Giovanni Passaleva and G. D. Patel and Manesh Patel and G. N. Patrick and Claudia Patrignani and C. Pavel-Nicorescu and A. Pazos Alvarez and Alex Pearce and Antonio Pellegrino and Gianni Penso and Monica Pepe Altarelli and Stefano Perazzini and E. Perez Trigo and A. P'erez-Calero Yzquierdo and P Cecilia Perret and Mathieu Perrin-terrin and Luca Pescatore and Erhan Pesen and Gianluigi Pessina and K. Petridis and A. Petrolini and A. Phan and Eduardo Picatoste Olloqui and Bolek Pietrzyk and T. Pilavr and Davide Pinci and S. Playfer and Maximo Plo Casasus and Francesco Polci and G. Polok and A. Poluektov and Erica Polycarpo and A. Popov and D. Popov and Bogdan Popovici and C{\'e}dric Potterat and Annie K. Powell and Jessica Prisciandaro and Adrian Pritchard and Claire Prouve and Valery Pugatch and A. Puig Navarro and Giovanni Punzi and W. Qian and J. H. Rademacker and B. Rakotomiaramanana and M. S. Rangel and Iurii Raniuk and N. Rauschmayr and G. Raven and S. Redford and Monique Reid and A. C. dos Reis and Stefania Ricciardi and A. Richards and Kurt Rinnert and V. Rives Molina and D. A. Roa Romero and Patrick Robbe and Daniel A. Roberts and A. B. Rodrigues and E. Rodrigues and P. Rodriguez Perez and Stefan Roiser and Vladimir Romanovsky and A. Romero Vidal and Julien Rouvinet and Thomas Ruf and Francesco Ruffini and H{\'e}ctor Ruiz and P. Ruiz Valls and Giuseppe Sabatino and Jorge Silva and Naylya Sagidova and Paul D. Sail and Biagio Saitta and V{\^a}nia Guimar{\~a}es and B. Sanmartin Sedes and Roberta Santacesaria and Cibran Santamarina Rios and Emanuele Santovetti and M. Sapunov and Alessio Sarti and Celestina Satriano and Alessia Satta and Mauro Savri{\'e} and Darya Savrina and Martin Schiller and Heinrich Schindler and Maximilian Schlupp and Michael Schmelling and Burkhard Schmidt and Otto Schneider and Andreas Schopper and M. -H. Schune and Rainer Schwemmer and B. Sciascia and Adalberto Sciubba and Marcos Seco and A. Semennikov and Katarzyna Senderowska and I. Sepp and Nicola Serra and Justine Serrano and Paul Seyfert and Mikhail Shapkin and Illya Shapoval and P. B. Shatalov and Yu. A. Shcheglov and Tara Shears and Lev Shekhtman and O. D. Shevchenko and Vladimir Shevchenko and Alexander Shires and R. Silva Coutinho and Meelis Sirendi and Nicola Skidmore and Tomasz Skwarnicki and N. A. Smith and Emma-Jane Smith and J. R. Smith and M. Smith and M. D. Sokoloff and F. J. P. Soler and Fatima Soomro and De Paula B. Souza and B. Souza De Paula and Bernhard Spaan and Ailsa Sparkes and Patrick Spradlin and Federico Stagni and S. Stahl and Olaf Steinkamp and Scott Stevenson and Simona Stoica and Sheldon Stone and B. Storaci and Mihai Straticiuc and Ulrich Straumann and V. K. Subbiah and Lantao Sun and William Sutcliffe and S. Swientek and Vasileios Syropoulos and Marek Szczekowski and P. M. Szczypka and D. Szilard and Tomasz Szumlak and S T'jampens and Maksym Teklishyn and E. Teodorescu and Frederic Teubert and Christopher Thomas and E. Thomas and Jeroen van Tilburg and Vincent Tisserand and Mark Tobin and Siim Tolk and Domenica Tonelli and Stig Topp-Joergensen and Nicholas Torr and Edwige Tournefier and St{\'e}phane Tourneur and M. T. Tran and Marco Tresch and Andrei Tsaregorodtsev and Panos Tsopelas and N. Tuning and M. Ubeda Garcia and Artur Ukleja and Andrey Ustyuzhanin and Ulrich Uwer and Vincenzo Vagnoni and Giovanni Valenti and Alexis Vallier and R. Vazquez Gomez and P. Vazquez Regueiro and C. V'azquez Sierra and Stefania Vecchi and J. J. Velthuis and M. Veltri and Giovanni Veneziano and Mikko Vesterinen and Benoit Viaud and D. Vieira and Xavier Vilas{\'i}s-Cardona and Achim Vollhardt and Dmytro Volyanskyy and David Voong and An. Vorobyev and Vitaly Vorobyev and Christian Vo{\ss} and Helge Voss and Rolf Waldi and C. Wallace and R. Wallace and Sebastian Wandernoth and Jinli Wang and D. R. Ward and N. K. Watson and A. D. Webber and D. Websdale and Mark Whitehead and Jean Wicht and J. Wiechczynski and D. Wiedner and L. W. Wiggers and George Wilkinson and M. P. Williams and F. F. Wilson and Jack Wimberley and Julian Wishahi and Wojciech Wislicki and M. Witek and S. A. Wotton and S. Wright and Shuangxi Wu and Kenneth Wyllie and Y. Xie and Z. Xing and Z. Yang and Xuhao Yuan and Oleg Yushchenko and M. Zangoli and Mikhail Zavertyaev and Fu-qiang Zhang and Ls Zhang and W. Chen X.-Y. Zhang and Yanfeng Zhang and Alexey Zhelezov and A. K. Zhokhov and Lieping Zhong and Andrey Zvyagin},
  • LHCb collaboration R. Aaij, Bernardo Adeva, +651 authors Andrey Zvyagin
  • Published 2012
  • Physics
  • The first observation of the (B) over bar (0) -> J/psi K+K- decay is presented with a data sample corresponding to an integrated luminosity of 1.0 fb(-1) of pp collisions at a center-of-mass energy of 7 TeV collected with the LHCb detector. The branching fraction is measured to be B((B) over bar (0) -> J/psi K+K-) = (2.53 +/- 0.31 +/- 0.19) x 10(-6), where the first uncertainty is statistical and the second is systematic. An amplitude analysis of the final state in the (B) over bar (0) -> J/psi… CONTINUE READING

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