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Beauty photoproduction using decays into electrons at HERA

Collaboration
May, 2008
39 pages
Published in:
  • Phys.Rev.D 78 (2008) 072001
e-Print:
DOI:
Report number:
  • DESY-08-056
Experiments:
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Abstract: (arXiv)
Photoproduction of beauty quarks in events with two jets and an electron associated with one of the jets has been studied with the ZEUS detector at HERA using an integrated luminosity of 120pb^-1. The fractions of events containing b quarks, and also of events containing c quarks, were extracted from a likelihood fit using variables sensitive to electron identification as well as to semileptonic decays. Total and differential cross sections for beauty and charm production were measured and compared with next-to-leading-order QCD calculations and Monte Carlo models.
Note:
  • 39 pages, 14 figures
  • 13.60.-r
  • 14.65.Fy
  • 13.20.Fc
  • 13.20.He
  • electron p: colliding beams
  • positron p: colliding beams
  • bottom
  • charm
  • quark: photoproduction
  • quark: pair production
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