Name: CMS_2013_I1256943
Year: 2013
Summary: Cross-section and angular correlations in $Z$ boson with $b$-hadrons events at $\sqrt{s} = 7$ TeV
Experiment: CMS
Collider: LHC
InspireID: 1256943
Status: VALIDATED
Reentrant: true
Authors:
 - Lorenzo Viliani <lorenzo.viliani@cern.ch>
 - Piergiulio Lenzi <piergiulio.lenzi@cern.ch>
References:
 - 10.1007 / JHEP12(2013)039
 - arXiv:1310.1349
 - CERN-PH-EP-2013-153
 - CMS-EWK-11-015
RunInfo:
  '$pp$ collisions with $\sqrt{s} = 7$ TeV. Selection of events with exactly two
  $b$-hadrons and a lepton pair from the $Z$ boson decay. Each lepton has $p_T > 20$ GeV
  and $|\eta| < 2.4$ and the dilepton invariant mass is $81 < M_{\ell\ell} < 101$ GeV. The
  $b$-hadrons have $p_T > 15$ GeV and $|\eta| < 2$. The differential cross sections
  are measured for $p_T > 0$ and $p_T > 50$ GeV.'
NumEvents: 1000000
NeedCrossSection: yes
Beams: [p+, p+]
Energies: [7000]
Luminosity_fb: 5.2
Description:
  '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/fb. 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.'
BibKey: Chatrchyan:2013zja
BibTeX: '@article{Chatrchyan:2013zja,
      author         = "Chatrchyan, Serguei and others",
      title          = "{Measurement of the cross section and angular
                        correlations for associated production of a $Z$ boson with
                        b-hadrons in $pp$ collisions at $\sqrt{s} =$ 7 TeV}",
      collaboration  = "CMS Collaboration",
      journal        = "JHEP",
      volume         = "1312",
      pages          = "039",
      doi            = "10.1007/JHEP12(2013)039",
      year           = "2013",
      eprint         = "1310.1349",
      archivePrefix  = "arXiv",
      primaryClass   = "hep-ex",
      reportNumber   = "CMS-EWK-11-015, CERN-PH-EP-2013-153",
      SLACcitation   = "%%CITATION = ARXIV:1310.1349;%%",
}'

ReleaseTests:
 - $A LHC-Z-e
 - $A-2 LHC-Z-mu

