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Measurement of BB¯ angular correlations based on secondary vertex reconstruction at ?s = 7 TeV

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اقرأ أكثر حفظ في قائمتي
  • معلومة اضافية
    • بيانات النشر:
      Springer Verlag
    • الموضوع:
      2011
    • الموضوع:
      10.1007/JHEP03(2011)136
    • نبذة مختصرة :
      A measurement of the angular correlations between beauty and anti-beauty hadrons (BB̄) produced in pp collisions at a centre-of-mass energy of 7 TeV at the CERN LHC is presented, probing for the first time the region of small angular separation. The B hadrons are identified by the presence of displaced secondary vertices from their decays. The B hadron angular separation is reconstructed from the decay vertices and the primaryinteraction vertex. The differential BB̄ production cross section, measured from a data sample collected by CMS and corresponding to an integrated luminosity of 3.1 pb -1, shows that a sizable fraction of the BB̄ pairs are produced with small opening angles. These studies provide a test of QCD and further insight into the dynamics of bb̄ production. ; The Scientific and Technical Research Council of Turkey, and Turkish Atomic Energy Authority
    • ISSN:
      1029-8479
    • Relation:
      Journal of High Energy Physics; Makale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı; Khachatryan, V., Sirunyan, A.M., Tumasyan, A., Adam, W., Bergauer, T., Dragicevic, M., Erö, J., .CMS Collaboration (2011). Measurement of BB̄ angular correlations based on secondary vertex reconstruction at √s = 7 TeV. Journal of High Energy Physics, 2011(3). doi:10.1007/JHEP03(2011)136; http://doi.org/10.1007/JHEP03(2011)136; http://hdl.handle.net/11147/4973; 2011; WOS:000289295300064; 2-s2.0-80053400657
    • الرقم المعرف:
      10.1007/JHEP03(2011)136
    • Rights:
      open
    • الرقم المعرف:
      edsbas.39ABD9DD