Measurement of the Cross Section and Angular Correlations for Associated Production of a Z Boson with b Hadrons in pp Collisions at s=\sqrt{s} = 7 TeV

Collaboration
Oct 4, 2013
38 pages
Published in:
  • JHEP 12 (2013) 039
  • Published: Dec 6, 2013
e-Print:
Report number:
  • CMS-EWK-11-015,
  • CERN-PH-EP-2013-153
Experiments:

Citations per year

2013201620192022202402468101214
Abstract: (arXiv)
A study of proton-proton collisions in which two b hadrons are produced in association with a Z boson is reported. The collisions were recorded at a centre-of-mass energy of 7 TeV with the CMS detector at the LHC, for an integrated luminosity of 5.2 inverse femtobarns. The b hadrons are identified by means of displaced secondary vertices, without the use of reconstructed jets, permitting the study of b-hadron pair production at small angular separation. Differential cross sections are presented as a function of the angular separation of the b hadrons and the Z boson. In addition, inclusive measurements are presented. For both the inclusive and differential studies, different ranges of Z boson momentum are considered, and each measurement is compared to the predictions from different event generators at leading-order and next-to-leading-order accuracy.
Note:
  • Replaced with published version. Added journal reference and DOI
  • Hadron-Hadron Scattering
  • p p: scattering
  • Z0: associated production
  • Z0: transverse momentum
  • vertex: secondary
  • higher-order: 0
  • higher-order: 1
  • differential cross section: measured
  • angular correlation
  • bottom: pair production