The European Physical Journal C

, 72:1972

Observation of X(3872) production in pp collisions at \(\sqrt{s}=7\mbox{~TeV}\)

Authors

  • R. Aaij
    • Nikhef National Institute for Subatomic Physics
  • C. Abellan Beteta
    • Universitat de Barcelona
  • B. Adeva
    • Universidad de Santiago de Compostela
  • M. Adinolfi
    • H.H. Wills Physics LaboratoryUniversity of Bristol
  • C. Adrover
    • CPPM, Aix-Marseille UniversitéCNRS/IN2P3
  • A. Affolder
    • Oliver Lodge LaboratoryUniversity of Liverpool
  • Z. Ajaltouni
    • Clermont Université, Université Blaise PascalCNRS/IN2P3, LPC
  • J. Albrecht
    • European Organization for Nuclear Research (CERN)
  • F. Alessio
    • European Organization for Nuclear Research (CERN)
  • M. Alexander
    • School of Physics and AstronomyUniversity of Glasgow
  • G. Alkhazov
    • Petersburg Nuclear Physics Institute (PNPI)
  • P. Alvarez Cartelle
    • Universidad de Santiago de Compostela
  • A. A. AlvesJr
    • Sezione INFN di Roma La Sapienza
  • S. Amato
    • Universidade Federal do Rio de Janeiro (UFRJ)
  • Y. Amhis
    • Ecole Polytechnique Fédérale de Lausanne (EPFL)
  • J. Anderson
    • Physik-InstitutUniversität Zürich
  • R. B. Appleby
    • School of Physics and AstronomyUniversity of Manchester
  • O. Aquines Gutierrez
    • Max-Planck-Institut für Kernphysik (MPIK)
  • F. Archilli
    • Laboratori Nazionali dell’INFN di Frascati
    • European Organization for Nuclear Research (CERN)
  • L. Arrabito
    • CC-IN2P3CNRS/IN2P3
  • A. Artamonov
    • Institute for High Energy Physics (IHEP)
  • M. Artuso
    • European Organization for Nuclear Research (CERN)
    • Syracuse University
  • E. Aslanides
    • CPPM, Aix-Marseille UniversitéCNRS/IN2P3
  • G. Auriemma
    • Sezione INFN di Roma La Sapienza
  • S. Bachmann
    • Physikalisches InstitutRuprecht-Karls-Universität Heidelberg
  • J. J. Back
    • Department of PhysicsUniversity of Warwick
  • D. S. Bailey
    • School of Physics and AstronomyUniversity of Manchester
  • V. Balagura
    • Institute of Theoretical and Experimental Physics (ITEP)
    • European Organization for Nuclear Research (CERN)
  • W. Baldini
    • Sezione INFN di Ferrara
  • R. J. Barlow
    • School of Physics and AstronomyUniversity of Manchester
  • C. Barschel
    • European Organization for Nuclear Research (CERN)
  • S. Barsuk
    • LAL, Université Paris-SudCNRS/IN2P3
  • W. Barter
    • Cavendish LaboratoryUniversity of Cambridge
  • A. Bates
    • School of Physics and AstronomyUniversity of Glasgow
  • C. Bauer
    • Max-Planck-Institut für Kernphysik (MPIK)
  • Th. Bauer
    • Nikhef National Institute for Subatomic Physics
  • A. Bay
    • Ecole Polytechnique Fédérale de Lausanne (EPFL)
  • I. Bediaga
    • Centro Brasileiro de Pesquisas Físicas (CBPF)
  • S. Belogurov
    • Institute of Theoretical and Experimental Physics (ITEP)
  • K. Belous
    • Institute for High Energy Physics (IHEP)
  • I. Belyaev
    • Institute of Theoretical and Experimental Physics (ITEP)
    • European Organization for Nuclear Research (CERN)
  • E. Ben-Haim
    • LPNHE, Université Pierre et Marie Curie, Université Paris DiderotCNRS/IN2P3
  • M. Benayoun
    • LPNHE, Université Pierre et Marie Curie, Université Paris DiderotCNRS/IN2P3
  • G. Bencivenni
    • Laboratori Nazionali dell’INFN di Frascati
  • S. Benson
    • School of Physics and AstronomyUniversity of Edinburgh
  • J. Benton
    • H.H. Wills Physics LaboratoryUniversity of Bristol
  • R. Bernet
    • Physik-InstitutUniversität Zürich
  • M.-O. Bettler
    • Sezione INFN di Firenze
  • M. van Beuzekom
    • Nikhef National Institute for Subatomic Physics
  • A. Bien
    • Physikalisches InstitutRuprecht-Karls-Universität Heidelberg
  • S. Bifani
    • School of PhysicsUniversity College Dublin
  • T. Bird
    • School of Physics and AstronomyUniversity of Manchester
  • A. Bizzeti
    • Sezione INFN di Firenze
  • P. M. Bjørnstad
    • School of Physics and AstronomyUniversity of Manchester
  • T. Blake
    • European Organization for Nuclear Research (CERN)
  • F. Blanc
    • Ecole Polytechnique Fédérale de Lausanne (EPFL)
  • C. Blanks
    • Imperial College London
  • J. Blouw
    • Physikalisches InstitutRuprecht-Karls-Universität Heidelberg
  • S. Blusk
    • Syracuse University
  • A. Bobrov
    • Budker Institute of Nuclear Physics (SB RAS) and Novosibirsk State University
  • V. Bocci
    • Sezione INFN di Roma La Sapienza
  • A. Bondar
    • Budker Institute of Nuclear Physics (SB RAS) and Novosibirsk State University
  • N. Bondar
    • Petersburg Nuclear Physics Institute (PNPI)
  • W. Bonivento
    • Sezione INFN di Cagliari
  • S. Borghi
    • School of Physics and AstronomyUniversity of Glasgow
    • School of Physics and AstronomyUniversity of Manchester
  • A. Borgia
    • Syracuse University
  • T. J. V. Bowcock
    • Oliver Lodge LaboratoryUniversity of Liverpool
  • C. Bozzi
    • Sezione INFN di Ferrara
  • T. Brambach
    • Fakultät PhysikTechnische Universität Dortmund
  • J. van den Brand
    • Nikhef National Institute for Subatomic Physics and Vrije Universiteit
  • J. Bressieux
    • Ecole Polytechnique Fédérale de Lausanne (EPFL)
  • D. Brett
    • School of Physics and AstronomyUniversity of Manchester
  • M. Britsch
    • Max-Planck-Institut für Kernphysik (MPIK)
  • T. Britton
    • Syracuse University
  • N. H. Brook
    • H.H. Wills Physics LaboratoryUniversity of Bristol
  • H. Brown
    • Oliver Lodge LaboratoryUniversity of Liverpool
  • A. Büchler-Germann
    • Physik-InstitutUniversität Zürich
  • I. Burducea
    • Horia Hulubei National Institute of Physics and Nuclear Engineering
  • A. Bursche
    • Physik-InstitutUniversität Zürich
  • J. Buytaert
    • European Organization for Nuclear Research (CERN)
  • S. Cadeddu
    • Sezione INFN di Cagliari
  • O. Callot
    • LAL, Université Paris-SudCNRS/IN2P3
  • M. Calvi
    • Sezione INFN di Milano Bicocca
  • M. Calvo Gomez
    • Universitat de Barcelona
  • A. Camboni
    • Universitat de Barcelona
  • P. Campana
    • Laboratori Nazionali dell’INFN di Frascati
    • European Organization for Nuclear Research (CERN)
  • A. Carbone
    • Sezione INFN di Bologna
  • G. Carboni
    • Sezione INFN di Roma Tor Vergata
  • R. Cardinale
    • Sezione INFN di Genova
    • European Organization for Nuclear Research (CERN)
  • A. Cardini
    • Sezione INFN di Cagliari
  • L. Carson
    • Imperial College London
  • K. Carvalho Akiba
    • Universidade Federal do Rio de Janeiro (UFRJ)
  • G. Casse
    • Oliver Lodge LaboratoryUniversity of Liverpool
  • M. Cattaneo
    • European Organization for Nuclear Research (CERN)
  • Ch. Cauet
    • Fakultät PhysikTechnische Universität Dortmund
  • M. Charles
    • Department of PhysicsUniversity of Oxford
  • Ph. Charpentier
    • European Organization for Nuclear Research (CERN)
  • N. Chiapolini
    • Physik-InstitutUniversität Zürich
  • K. Ciba
    • European Organization for Nuclear Research (CERN)
  • X. Cid Vidal
    • Universidad de Santiago de Compostela
  • G. Ciezarek
    • Imperial College London
  • P. E. L. Clarke
    • European Organization for Nuclear Research (CERN)
    • School of Physics and AstronomyUniversity of Edinburgh
  • M. Clemencic
    • European Organization for Nuclear Research (CERN)
  • H. V. Cliff
    • Cavendish LaboratoryUniversity of Cambridge
  • J. Closier
    • European Organization for Nuclear Research (CERN)
  • C. Coca
    • Horia Hulubei National Institute of Physics and Nuclear Engineering
  • V. Coco
    • Nikhef National Institute for Subatomic Physics
  • J. Cogan
    • CPPM, Aix-Marseille UniversitéCNRS/IN2P3
  • P. Collins
    • European Organization for Nuclear Research (CERN)
  • A. Comerma-Montells
    • Universitat de Barcelona
  • F. Constantin
    • Horia Hulubei National Institute of Physics and Nuclear Engineering
  • A. Contu
    • Department of PhysicsUniversity of Oxford
  • A. Cook
    • H.H. Wills Physics LaboratoryUniversity of Bristol
  • M. Coombes
    • H.H. Wills Physics LaboratoryUniversity of Bristol
  • G. Corti
    • European Organization for Nuclear Research (CERN)
  • G. A. Cowan
    • Ecole Polytechnique Fédérale de Lausanne (EPFL)
  • R. Currie
    • School of Physics and AstronomyUniversity of Edinburgh
  • C. D’Ambrosio
    • European Organization for Nuclear Research (CERN)
  • P. David
    • LPNHE, Université Pierre et Marie Curie, Université Paris DiderotCNRS/IN2P3
  • P. N. Y. David
    • Nikhef National Institute for Subatomic Physics
  • I. De Bonis
    • LAPP, Université de SavoieCNRS/IN2P3
  • S. De Capua
    • Sezione INFN di Roma Tor Vergata
  • M. De Cian
    • Physik-InstitutUniversität Zürich
  • F. De Lorenzi
    • School of PhysicsUniversity College Dublin
  • J. M. De Miranda
    • Centro Brasileiro de Pesquisas Físicas (CBPF)
  • L. De Paula
    • Universidade Federal do Rio de Janeiro (UFRJ)
  • P. De Simone
    • Laboratori Nazionali dell’INFN di Frascati
  • D. Decamp
    • LAPP, Université de SavoieCNRS/IN2P3
  • M. Deckenhoff
    • Fakultät PhysikTechnische Universität Dortmund
  • H. Degaudenzi
    • European Organization for Nuclear Research (CERN)
    • Ecole Polytechnique Fédérale de Lausanne (EPFL)
  • L. Del Buono
    • LPNHE, Université Pierre et Marie Curie, Université Paris DiderotCNRS/IN2P3
  • C. Deplano
    • Sezione INFN di Cagliari
  • D. Derkach
    • Sezione INFN di Bologna
    • European Organization for Nuclear Research (CERN)
  • O. Deschamps
    • Clermont Université, Université Blaise PascalCNRS/IN2P3, LPC
  • F. Dettori
    • Nikhef National Institute for Subatomic Physics and Vrije Universiteit
  • J. Dickens
    • Cavendish LaboratoryUniversity of Cambridge
  • H. Dijkstra
    • European Organization for Nuclear Research (CERN)
  • P. Diniz Batista
    • Centro Brasileiro de Pesquisas Físicas (CBPF)
  • F. Domingo Bonal
    • Universitat de Barcelona
  • S. Donleavy
    • Oliver Lodge LaboratoryUniversity of Liverpool
  • F. Dordei
    • Physikalisches InstitutRuprecht-Karls-Universität Heidelberg
  • A. Dosil Suárez
    • Universidad de Santiago de Compostela
  • D. Dossett
    • Department of PhysicsUniversity of Warwick
  • A. Dovbnya
    • NSC Kharkiv Institute of Physics and Technology (NSC KIPT)
  • F. Dupertuis
    • Ecole Polytechnique Fédérale de Lausanne (EPFL)
  • R. Dzhelyadin
    • Institute for High Energy Physics (IHEP)
  • A. Dziurda
    • Henryk Niewodniczanski Institute of Nuclear Physics Polish Academy of Sciences
  • S. Easo
    • STFC Rutherford Appleton Laboratory
  • U. Egede
    • Imperial College London
  • V. Egorychev
    • Institute of Theoretical and Experimental Physics (ITEP)
  • S. Eidelman
    • Budker Institute of Nuclear Physics (SB RAS) and Novosibirsk State University
  • D. van Eijk
    • Nikhef National Institute for Subatomic Physics
  • F. Eisele
    • Physikalisches InstitutRuprecht-Karls-Universität Heidelberg
  • S. Eisenhardt
    • School of Physics and AstronomyUniversity of Edinburgh
  • R. Ekelhof
    • Fakultät PhysikTechnische Universität Dortmund
  • L. Eklund
    • School of Physics and AstronomyUniversity of Glasgow
  • Ch. Elsasser
    • Physik-InstitutUniversität Zürich
  • D. Elsby
    • University of Birmingham
  • D. Esperante Pereira
    • Universidad de Santiago de Compostela
  • L. Estève
    • Cavendish LaboratoryUniversity of Cambridge
  • A. Falabella
    • Sezione INFN di Bologna
    • Sezione INFN di Ferrara
  • E. Fanchini
    • Sezione INFN di Milano Bicocca
  • C. Färber
    • Physikalisches InstitutRuprecht-Karls-Universität Heidelberg
  • G. Fardell
    • School of Physics and AstronomyUniversity of Edinburgh
  • C. Farinelli
    • Nikhef National Institute for Subatomic Physics
  • S. Farry
    • School of PhysicsUniversity College Dublin
  • V. Fave
    • Ecole Polytechnique Fédérale de Lausanne (EPFL)
  • V. Fernandez Albor
    • Universidad de Santiago de Compostela
  • M. Ferro-Luzzi
    • European Organization for Nuclear Research (CERN)
  • S. Filippov
    • Institute for Nuclear Research of the Russian Academy of Sciences (INR RAN)
  • C. Fitzpatrick
    • School of Physics and AstronomyUniversity of Edinburgh
  • M. Fontana
    • Max-Planck-Institut für Kernphysik (MPIK)
  • F. Fontanelli
    • Sezione INFN di Genova
  • R. Forty
    • European Organization for Nuclear Research (CERN)
  • M. Frank
    • European Organization for Nuclear Research (CERN)
  • C. Frei
    • European Organization for Nuclear Research (CERN)
  • M. Frosini
    • Sezione INFN di Firenze
    • European Organization for Nuclear Research (CERN)
  • S. Furcas
    • Sezione INFN di Milano Bicocca
  • A. Gallas Torreira
    • Universidad de Santiago de Compostela
  • D. Galli
    • Sezione INFN di Bologna
  • M. Gandelman
    • Universidade Federal do Rio de Janeiro (UFRJ)
  • P. Gandini
    • Department of PhysicsUniversity of Oxford
  • Y. Gao
    • Center for High Energy PhysicsTsinghua University
  • J-C. Garnier
    • European Organization for Nuclear Research (CERN)
  • J. Garofoli
    • Syracuse University
  • J. Garra Tico
    • Cavendish LaboratoryUniversity of Cambridge
  • L. Garrido
    • Universitat de Barcelona
  • D. Gascon
    • Universitat de Barcelona
  • C. Gaspar
    • European Organization for Nuclear Research (CERN)
  • N. Gauvin
    • Ecole Polytechnique Fédérale de Lausanne (EPFL)
  • M. Gersabeck
    • European Organization for Nuclear Research (CERN)
  • T. Gershon
    • European Organization for Nuclear Research (CERN)
    • Department of PhysicsUniversity of Warwick
  • Ph. Ghez
    • LAPP, Université de SavoieCNRS/IN2P3
  • V. Gibson
    • Cavendish LaboratoryUniversity of Cambridge
  • V. V. Gligorov
    • European Organization for Nuclear Research (CERN)
  • C. Göbel
    • Pontifícia Universidade Católica do Rio de Janeiro (PUC-Rio)
  • D. Golubkov
    • Institute of Theoretical and Experimental Physics (ITEP)
  • A. Golutvin
    • Institute of Theoretical and Experimental Physics (ITEP)
    • European Organization for Nuclear Research (CERN)
    • Imperial College London
  • A. Gomes
    • Universidade Federal do Rio de Janeiro (UFRJ)
  • H. Gordon
    • Department of PhysicsUniversity of Oxford
  • M. Grabalosa Gándara
    • Universitat de Barcelona
  • R. Graciani Diaz
    • Universitat de Barcelona
  • L. A. Granado Cardoso
    • European Organization for Nuclear Research (CERN)
  • E. Graugés
    • Universitat de Barcelona
  • G. Graziani
    • Sezione INFN di Firenze
  • A. Grecu
    • Horia Hulubei National Institute of Physics and Nuclear Engineering
  • E. Greening
    • Department of PhysicsUniversity of Oxford
  • S. Gregson
    • Cavendish LaboratoryUniversity of Cambridge
  • B. Gui
    • Syracuse University
  • E. Gushchin
    • Institute for Nuclear Research of the Russian Academy of Sciences (INR RAN)
  • Yu. Guz
    • Institute for High Energy Physics (IHEP)
  • T. Gys
    • European Organization for Nuclear Research (CERN)
  • G. Haefeli
    • Ecole Polytechnique Fédérale de Lausanne (EPFL)
  • C. Haen
    • European Organization for Nuclear Research (CERN)
  • S. C. Haines
    • Cavendish LaboratoryUniversity of Cambridge
  • T. Hampson
    • H.H. Wills Physics LaboratoryUniversity of Bristol
  • S. Hansmann-Menzemer
    • Physikalisches InstitutRuprecht-Karls-Universität Heidelberg
  • R. Harji
    • Imperial College London
  • N. Harnew
    • Department of PhysicsUniversity of Oxford
  • J. Harrison
    • School of Physics and AstronomyUniversity of Manchester
  • P. F. Harrison
    • Department of PhysicsUniversity of Warwick
  • T. Hartmann
    • Physikalisches InstitutUniversität Rostock
  • J. He
    • LAL, Université Paris-SudCNRS/IN2P3
  • V. Heijne
    • Nikhef National Institute for Subatomic Physics
  • K. Hennessy
    • Oliver Lodge LaboratoryUniversity of Liverpool
  • P. Henrard
    • Clermont Université, Université Blaise PascalCNRS/IN2P3, LPC
  • J. A. Hernando Morata
    • Universidad de Santiago de Compostela
  • E. van Herwijnen
    • European Organization for Nuclear Research (CERN)
  • E. Hicks
    • Oliver Lodge LaboratoryUniversity of Liverpool
  • K. Holubyev
    • Physikalisches InstitutRuprecht-Karls-Universität Heidelberg
  • P. Hopchev
    • LAPP, Université de SavoieCNRS/IN2P3
  • W. Hulsbergen
    • Nikhef National Institute for Subatomic Physics
  • P. Hunt
    • Department of PhysicsUniversity of Oxford
  • T. Huse
    • Oliver Lodge LaboratoryUniversity of Liverpool
  • R. S. Huston
    • School of PhysicsUniversity College Dublin
  • D. Hutchcroft
    • Oliver Lodge LaboratoryUniversity of Liverpool
  • D. Hynds
    • School of Physics and AstronomyUniversity of Glasgow
  • V. Iakovenko
    • Institute for Nuclear Research of the National Academy of Sciences (KINR)
  • P. Ilten
    • School of PhysicsUniversity College Dublin
  • J. Imong
    • H.H. Wills Physics LaboratoryUniversity of Bristol
  • R. Jacobsson
    • European Organization for Nuclear Research (CERN)
  • A. Jaeger
    • Physikalisches InstitutRuprecht-Karls-Universität Heidelberg
  • M. Jahjah Hussein
    • Clermont Université, Université Blaise PascalCNRS/IN2P3, LPC
  • E. Jans
    • Nikhef National Institute for Subatomic Physics
  • F. Jansen
    • Nikhef National Institute for Subatomic Physics
  • P. Jaton
    • Ecole Polytechnique Fédérale de Lausanne (EPFL)
  • B. Jean-Marie
    • LAL, Université Paris-SudCNRS/IN2P3
  • F. Jing
    • Center for High Energy PhysicsTsinghua University
  • M. John
    • Department of PhysicsUniversity of Oxford
  • D. Johnson
    • Department of PhysicsUniversity of Oxford
  • C. R. Jones
    • Cavendish LaboratoryUniversity of Cambridge
  • B. Jost
    • European Organization for Nuclear Research (CERN)
  • M. Kaballo
    • Fakultät PhysikTechnische Universität Dortmund
  • S. Kandybei
    • NSC Kharkiv Institute of Physics and Technology (NSC KIPT)
  • M. Karacson
    • European Organization for Nuclear Research (CERN)
  • T. M. Karbach
    • Fakultät PhysikTechnische Universität Dortmund
  • J. Keaveney
    • School of PhysicsUniversity College Dublin
  • I. R. Kenyon
    • University of Birmingham
  • U. Kerzel
    • European Organization for Nuclear Research (CERN)
  • T. Ketel
    • Nikhef National Institute for Subatomic Physics and Vrije Universiteit
  • A. Keune
    • Ecole Polytechnique Fédérale de Lausanne (EPFL)
  • B. Khanji
    • CPPM, Aix-Marseille UniversitéCNRS/IN2P3
  • Y. M. Kim
    • School of Physics and AstronomyUniversity of Edinburgh
  • M. Knecht
    • Ecole Polytechnique Fédérale de Lausanne (EPFL)
  • P. Koppenburg
    • Nikhef National Institute for Subatomic Physics
  • A. Kozlinskiy
    • Nikhef National Institute for Subatomic Physics
  • L. Kravchuk
    • Institute for Nuclear Research of the Russian Academy of Sciences (INR RAN)
  • K. Kreplin
    • Physikalisches InstitutRuprecht-Karls-Universität Heidelberg
  • M. Kreps
    • Department of PhysicsUniversity of Warwick
  • G. Krocker
    • Physikalisches InstitutRuprecht-Karls-Universität Heidelberg
  • P. Krokovny
    • Physikalisches InstitutRuprecht-Karls-Universität Heidelberg
  • F. Kruse
    • Fakultät PhysikTechnische Universität Dortmund
  • K. Kruzelecki
    • European Organization for Nuclear Research (CERN)
  • M. Kucharczyk
    • Sezione INFN di Milano Bicocca
    • Henryk Niewodniczanski Institute of Nuclear Physics Polish Academy of Sciences
    • European Organization for Nuclear Research (CERN)
  • T. Kvaratskheliya
    • Institute of Theoretical and Experimental Physics (ITEP)
    • European Organization for Nuclear Research (CERN)
  • V. N. La Thi
    • Ecole Polytechnique Fédérale de Lausanne (EPFL)
  • D. Lacarrere
    • European Organization for Nuclear Research (CERN)
  • G. Lafferty
    • School of Physics and AstronomyUniversity of Manchester
  • A. Lai
    • Sezione INFN di Cagliari
  • D. Lambert
    • School of Physics and AstronomyUniversity of Edinburgh
  • R. W. Lambert
    • Nikhef National Institute for Subatomic Physics and Vrije Universiteit
  • E. Lanciotti
    • European Organization for Nuclear Research (CERN)
  • G. Lanfranchi
    • Laboratori Nazionali dell’INFN di Frascati
  • C. Langenbruch
    • Physikalisches InstitutRuprecht-Karls-Universität Heidelberg
  • T. Latham
    • Department of PhysicsUniversity of Warwick
  • C. Lazzeroni
    • University of Birmingham
  • R. Le Gac
    • CPPM, Aix-Marseille UniversitéCNRS/IN2P3
  • J. van Leerdam
    • Nikhef National Institute for Subatomic Physics
  • J.-P. Lees
    • LAPP, Université de SavoieCNRS/IN2P3
  • R. Lefèvre
    • Clermont Université, Université Blaise PascalCNRS/IN2P3, LPC
  • A. Leflat
    • Institute of Nuclear PhysicsMoscow State University (SINP MSU)
    • European Organization for Nuclear Research (CERN)
  • J. Lefrançois
    • LAL, Université Paris-SudCNRS/IN2P3
  • O. Leroy
    • CPPM, Aix-Marseille UniversitéCNRS/IN2P3
  • T. Lesiak
    • Henryk Niewodniczanski Institute of Nuclear Physics Polish Academy of Sciences
  • L. Li
    • Center for High Energy PhysicsTsinghua University
  • L. Li Gioi
    • Clermont Université, Université Blaise PascalCNRS/IN2P3, LPC
  • M. Lieng
    • Fakultät PhysikTechnische Universität Dortmund
  • M. Liles
    • Oliver Lodge LaboratoryUniversity of Liverpool
  • R. Lindner
    • European Organization for Nuclear Research (CERN)
  • C. Linn
    • Physikalisches InstitutRuprecht-Karls-Universität Heidelberg
  • B. Liu
    • Center for High Energy PhysicsTsinghua University
  • G. Liu
    • European Organization for Nuclear Research (CERN)
  • J. von Loeben
    • Sezione INFN di Milano Bicocca
  • J. H. Lopes
    • Universidade Federal do Rio de Janeiro (UFRJ)
  • E. Lopez Asamar
    • Universitat de Barcelona
  • N. Lopez-March
    • Ecole Polytechnique Fédérale de Lausanne (EPFL)
  • H. Lu
    • Center for High Energy PhysicsTsinghua University
    • Ecole Polytechnique Fédérale de Lausanne (EPFL)
  • J. Luisier
    • Ecole Polytechnique Fédérale de Lausanne (EPFL)
  • A. Mac Raighne
    • School of Physics and AstronomyUniversity of Glasgow
  • F. Machefert
    • LAL, Université Paris-SudCNRS/IN2P3
  • I. V. Machikhiliyan
    • Institute of Theoretical and Experimental Physics (ITEP)
    • LAPP, Université de SavoieCNRS/IN2P3
  • F. Maciuc
    • Max-Planck-Institut für Kernphysik (MPIK)
  • O. Maev
    • Petersburg Nuclear Physics Institute (PNPI)
    • European Organization for Nuclear Research (CERN)
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    • Centro Brasileiro de Pesquisas Físicas (CBPF)
  • S. Malde
    • Department of PhysicsUniversity of Oxford
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    • European Organization for Nuclear Research (CERN)
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    • Sezione INFN di Cagliari
  • G. Mancinelli
    • CPPM, Aix-Marseille UniversitéCNRS/IN2P3
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    • Cavendish LaboratoryUniversity of Cambridge
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    • Sezione INFN di Bologna
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    • Ecole Polytechnique Fédérale de Lausanne (EPFL)
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    • Physikalisches InstitutRuprecht-Karls-Universität Heidelberg
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    • Sezione INFN di Roma La Sapienza
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    • LPNHE, Université Pierre et Marie Curie, Université Paris DiderotCNRS/IN2P3
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    • Department of PhysicsUniversity of Oxford
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    • LAL, Université Paris-SudCNRS/IN2P3
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    • European Organization for Nuclear Research (CERN)
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    • Sezione INFN di Milano Bicocca
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    • Petersburg Nuclear Physics Institute (PNPI)
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    • Syracuse University
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    • Physikalisches InstitutRuprecht-Karls-Universität Heidelberg
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    • Fakultät PhysikTechnische Universität Dortmund
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    • Sezione INFN di Roma Tor Vergata
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    • European Organization for Nuclear Research (CERN)
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    • European Organization for Nuclear Research (CERN)
Open AccessLetter

DOI: 10.1140/epjc/s10052-012-1972-7

Cite this article as:
The LHCb Collaboration, Aaij, R., Abellan Beteta, C. et al. Eur. Phys. J. C (2012) 72: 1972. doi:10.1140/epjc/s10052-012-1972-7

Abstract

Using 34.7 pb−1 of data collected with the LHCb detector, the inclusive production of the X(3872) meson in pp collisions at \(\sqrt{s}=7\mbox{~TeV}\) is observed for the first time. Candidates are selected in the X(3872)→J/ψπ + π decay mode, and used to measure
https://static-content.springer.com/image/art%3A10.1140%2Fepjc%2Fs10052-012-1972-7/MediaObjects/10052_2012_1972_Equa_HTML.gif
where σ(ppX(3872)+anything) is the inclusive production cross section of X(3872) mesons with rapidity in the range 2.5–4.5 and transverse momentum in the range 5–20 GeV/c. In addition the masses of both the X(3872) and ψ(2S) mesons, reconstructed in the J/ψπ + π final state, are measured to be
$$m_{X(3872)} = 3871.95 \pm0.48 \ (\mathrm{stat}) \pm0.12 \ (\mathrm {syst})\ \mathrm{MeV}/c^2 $$
and
$$m_{\psi(2S)} = 3686.12\pm0.06 \ (\mathrm{stat}) \pm0.10 \ (\mathrm {syst})\ \mathrm{MeV}/c^2. $$

Copyright information

© The Author(s) 2012