Measurement of the \({B} _{c} ^+\) meson lifetime using 详细信息    查看全文

• 作者：R. Aaij (40)
  B. Adeva (36)
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• 刊名：The European Physical Journal C - Particles and Fields
• 出版年：2014
• 出版时间：May 2014
• 年：2014
• 卷：74
• 期：5
• 全文大小：
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  40. Nikhef National Institute for Subatomic Physics, Amsterdam, The Netherlands
  36. Universidad de Santiago de Compostela, Santiago de Compostela, Spain
  45. H.H. Wills Physics Laboratory, University of Bristol, Bristol, UK
  51. Oliver Lodge Laboratory, University of Liverpool, Liverpool, UK
  5. Clermont Université, Université Blaise Pascal, CNRS/IN2P3, LPC, Clermont-Ferrand, France
  9. Fakult?t Physik, Technische Universit?t Dortmund, Dortmund, Germany
  37. European Organization for Nuclear Research (CERN), Geneva, Switzerland
  50. School of Physics and Astronomy, University of Glasgow, Glasgow, UK
  29. Petersburg Nuclear Physics Institute (PNPI), Gatchina, Russia
  24. Sezione INFN di Roma La Sapienza, Rome, Italy
  2. Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil
  21. Sezione INFN di Padova, Padua, Italy
  7. LAL, Université Paris-Sud, CNRS/IN2P3, Orsay, France
  17. Sezione INFN di Firenze, Florence, Italy
  39. Physik-Institut, Universit?t Zürich, Zurich, Switzerland
  56. University of Cincinnati, Cincinnati, OH, USA
  16. Sezione INFN di Ferrara, Ferrara, Italy
  57. University of Maryland, College Park, MD, USA
  53. School of Physics and Astronomy, University of Manchester, Manchester, UK
  10. Max-Planck-Institut für Kernphysik (MPIK), Heidelberg, Germany
  34. Institute for High Energy Physics (IHEP), Protvino, Russia
  58. Syracuse University, Syracuse, NY, USA
  6. CPPM, Aix-Marseille Université, CNRS/IN2P3, Marseille, France
  11. Physikalisches Institut, Ruprecht-Karls-Universit?t Heidelberg, Heidelberg, Germany
  47. Department of Physics, University of Warwick, Coventry, UK
  35. Universitat de Barcelona, Barcelona, Spain
  30. Institute of Theoretical and Experimental Physics (ITEP), Moscow, Russia
  38. Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland
  46. Cavendish Laboratory, University of Cambridge, Cambridge, UK
  27. National Center for Nuclear Research (NCBJ), Warsaw, Poland
  22. Sezione INFN di Pisa, Pisa, Italy
  1. Centro Brasileiro de Pesquisas Físicas (CBPF), Rio de Janeiro, Brazil
  8. LPNHE, Université Pierre et Marie Curie, Université Paris Diderot, CNRS/IN2P3, Paris, France
  18. Laboratori Nazionali dell’INFN di Frascati, Frascati, Italy
  49. School of Physics and Astronomy, University of Edinburgh, Edinburgh, United Kingdom
  31. Institute of Nuclear Physics, Moscow State University (SINP MSU), Moscow, Russia
  44. University of Birmingham, Birmingham, UK
  33. Budker Institute of Nuclear Physics (SB RAS) and Novosibirsk State University, Novosibirsk, Russia
  15. Sezione INFN di Cagliari, Cagliari, Italy
  41. Nikhef National Institute for Subatomic Physics and VU University Amsterdam, Amsterdam, The Netherlands
  20. Sezione INFN di Milano Bicocca, Milan, Italy
  14. Sezione INFN di Bologna, Bologna, Italy
  23. Sezione INFN di Roma Tor Vergata, Rome, Italy
  19. Sezione INFN di Genova, Genoa, Italy
  54. Department of Physics, University of Oxford, Oxford, UK
  25. Henryk Niewodniczanski Institute of Nuclear Physics Polish Academy of Sciences, Kraków, Poland
  52. Imperial College London, London, UK
  28. Horia Hulubei National Institute of Physics and Nuclear Engineering, Bucharest-Magurele, Romania
  55. Massachusetts Institute of Technology, Cambridge, MA, USA
  59. Pontifícia Universidade Católica do Rio de Janeiro (PUC-Rio), Rio de Janeiro, Brazil
  4. LAPP, Université de Savoie, CNRS/IN2P3, Annecy-Le-Vieux, France
  42. NSC Kharkiv Institute of Physics and Technology (NSC KIPT), Kharkiv, Ukraine
  48. STFC Rutherford Appleton Laboratory, Didcot, UK
  32. Institute for Nuclear Research of the Russian Academy of Sciences (INR RAN), Moscow, Russia
  3. Center for High Energy Physics, Tsinghua University, Beijing, China
  60. Institut für Physik, Universit?t Rostock, Rostock, Germany
  62. KVI, University of Groningen, Groningen, The Netherlands
  43. Institute for Nuclear Research of the National Academy of Sciences (KINR), Kiev, Ukraine
  26. Faculty of Physics and Applied Computer Science, AGH, University of Science and Technology, Kraków, Poland
  12. School of Physics, University College Dublin, Dublin, Ireland
  13. Sezione INFN di Bari, Bari, Italy
  63. Celal Bayar University, Manisa, Turkey
  61. National Research Centre Kurchatov Institute, Moscow, Russia
  
• ISSN：1434-6052

文摘

The lifetime of the \({B} _{c} ^+\) meson is measured using semileptonic decays having a \(J/\psi \) meson and a muon in the final state. The data, corresponding to an integrated luminosity of \(2 \text{ fb }^{-1} \) , are collected by the LHCb detector in \(pp\) collisions at a centre-of-mass energy of 8 TeV. The measured lifetime is $$\begin{aligned} \tau = 509\pm 8\pm 12\mathrm {~fs}, \end{aligned}$$ where the first uncertainty is statistical and the second is systematic.