Measurement of the forward Z boson production cross-section in pp collisions at $\sqrt{s} = 13$ TeV

The LHCb collaboration
JHEP 09 (2016) 136, 2016.

Abstract
A measurement of the production cross-section of Z bosons in pp collisions at $\sqrt{s} = 13$ TeV is presented using dimuon and dielectron final states in LHCb data. The cross-section is measured for leptons with pseudorapidities in the range $2.0 < \eta < 4.5$, transverse momenta $p_\text{T} > 20$ GeV and dilepton invariant mass in the range $60<m(\ell\ell)<120$ GeV. The integrated cross-section from averaging the two final states is \begin{equation*}\sigma_{\text{Z}}^{\ell\ell} = 194.3 \pm 0.9 \pm 3.3 \pm 7.6\text{ pb,}\end{equation*} where the first uncertainty is statistical, the second is due to systematic effects, and the third is due to the luminosity determination. In addition, differential cross-sections are measured as functions of the Z boson rapidity, transverse momentum and the angular variable $\phi^*_\eta$.

  • Table 2a

    10.17182/hepdata.110162.v1/t1

    The FSR correction applied as a function of the boson rapidity for muons.

  • Table 2b

    10.17182/hepdata.110162.v1/t2

    The FSR correction applied as a function of the boson rapidity for electrons.

  • Table 3a

    10.17182/hepdata.110162.v1/t3

    The FSR correction applied as a function of $\phi ^ * _ \eta$ for muons.

  • Table 3b

    10.17182/hepdata.110162.v1/t4

    The FSR correction applied as a function of $\phi ^ * _ \eta$ for electrons.

  • Table 4

    10.17182/hepdata.110162.v1/t5

    The FSR correction applied as a function of the boson transverse momentum.

  • Table 5a

    10.17182/hepdata.110162.v1/t6

    The measured differential cross-sections as a function of the boson rapidity for muons. The first uncertainty is due to the...

  • Table 5b

    10.17182/hepdata.110162.v1/t7

    The measured differential cross-sections as a function of the boson rapidity for electrons. The first uncertainty is due to the...

  • Table 6a

    10.17182/hepdata.110162.v1/t8

    The measured differential cross-sections as a function of $\phi ^ * _ \eta$ for muons. The first uncertainty is due...

  • Table 6b

    10.17182/hepdata.110162.v1/t9

    The measured differential cross-sections as a function of $\phi ^ * _ \eta$ for electrons. The first uncertainty is due...

  • Table 7

    10.17182/hepdata.110162.v1/t10

    The measured differential cross-sections as a function of pT . The first uncertainty is due to the size of the...

  • Table 8

    10.17182/hepdata.110162.v1/t11

    The correlation matrix for the differential cross-section measurement as a function of Z boson rapidity, for the dimuon final state,...

  • Table 9

    10.17182/hepdata.110162.v1/t12

    The correlation matrix for the differential cross-section measurements as a function of the Z boson rapidity, for the dielectron final...

  • Table 10

    10.17182/hepdata.110162.v1/t13

    The correlation matrix for the differential cross-section measurement as a function of $\phi ^ * _ \eta$ , for the...

  • Table 11

    10.17182/hepdata.110162.v1/t14

    The correlation matrix for the differential cross-section measurements as a function of $\phi ^ * _ \eta$ , for the...

  • Table 12

    10.17182/hepdata.110162.v1/t15

    The correlation matrix for the differential cross-section measurements as a function of boson pT , for the dimuon final state,...

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