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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

The collaboration
JHEP 12 (2013) 039, 2013.

Abstract (data abstract)
CERN-LHC. 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 The channel fiducial region is defined as: - 2e or 2mu, with invariant mass between 81 and 101 GeV, pt>20 GeV, |eta|<2.4. - Exactly 2 b-hadrons with pt> 15 GeV, |eta|<2.0.

• #### Table 1

Data from Fig5 upper left of preprint

10.17182/hepdata.69342.v1/t1

Differential cross sections for all p_T^Z, as a function of DeltaR(BB).

• #### Table 2

Data from Fig5 upper right of preprint

10.17182/hepdata.69342.v1/t2

Differential cross sections for all p_T^Z, as a function of DeltaiPhi(BB).

• #### Table 3

Data from Fig5 lower left of preprint

10.17182/hepdata.69342.v1/t3

Differential cross sections for all p_T^Z, as a function of minDeltaR(Z,B).

• #### Table 4

Data from Fig5 lower right of preprint

10.17182/hepdata.69342.v1/t4

Differential cross sections for all p_T^Z, as a function of A(ZBB).

• #### Table 5

Data from Fig6 upper left of preprint

10.17182/hepdata.69342.v1/t5

Differential cross sections for p_T^Z>50 GeV, as a function of DeltaR(BB).

• #### Table 6

Data from Fig6 upper right of preprint

10.17182/hepdata.69342.v1/t6

Differential cross sections for p_T^Z>50 GeV, as a function of DeltaiPhi(BB).

• #### Table 7

Data from Fig6 lower left of preprint

10.17182/hepdata.69342.v1/t7

Differential cross sections for p_T^Z>50 GeV, as a function of minDeltaR(Z,B).

• #### Table 8

Data from Fig6 lower right of preprint

10.17182/hepdata.69342.v1/t8

Differential cross sections for p_T^Z>50 GeV, as a function of A(ZBB).

• #### Table 9

Data from Fig7

10.17182/hepdata.69342.v1/t9

dsigma, assuming a minimal p_T^Z>x.