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Study of forward Z + jet production in pp collisions at $\sqrt{s} = 7$ TeV

The LHCb collaboration
JHEP 01 (2014) 033 , 2014.

Abstract (data abstract)
CERN-LHCb. Measurement of the $Z(\to \mu^+ \mu^-) + $jet production cross-section in $pp$ collisions at a centre-of-mass energy $\sqrt{s}=7$ TeV using an integrated luminosity of 1.0 fb$^{-1}$ recorded by the LHCb experiment. Results are shown with two jet transverse momentum thresholds, 10 and 20 GeV/$c$, for both the overall cross-section within the fiducial volume, and for six differential cross-section measurements. The fiducial volume requires that both the jet and the muons from the $Z$ boson decay are produced in the forward direction ($2.0 < \eta < 4.5$). A further condition is applied on the separation between each of the muons and the jet, $\Delta r=\sqrt{(\Delta\phi)^2 + (\Delta\eta)^2}$ (see DR below). The results show good agreement with theoretical predictions at the second-order expansion in the coupling of the strong interaction.

  • Table 1

    Data from Page 7

    10.17182/hepdata.69938.v1/t1

    The $Z$+jet cross-section at Born level in $pp$ collisions at $\sqrt{s}=7$ TeV. The first uncertainty is statistical, the second is...

  • Table 2

    Data from Page 7; Fig. 3

    10.17182/hepdata.69938.v1/t2

    The cross-section ratio $\sigma(Z+\mathrm{jet})/\sigma(Z)$ at Born level in $pp$ collisions at $\sqrt{s}=7$ TeV. The first uncertainty is statistical, the second...

  • Table 3

    Data from Fig. 4

    10.17182/hepdata.69938.v1/t3

    Differential cross-section for $Z$+jet in the leading jet $p_T$, for $p_{T}^{\mathrm{jet}} > 10$ GeV/$c$. These results are not corrected for...

  • Table 4

    Data from Fig. 5

    10.17182/hepdata.69938.v1/t4

    Differential cross-section for $Z$+jet in the leading jet pseudorapidity, $\eta^{\mathrm{jet}}$.

  • Table 5

    Data from Fig. 6

    10.17182/hepdata.69938.v1/t5

    Differential cross-section for $Z$+jet in the boson $Z$ rapidity, $y^Z$.

  • Table 6

    Data from Fig. 7

    10.17182/hepdata.69938.v1/t6

    Cross-section for $Z$+jet production, differential in the $Z$ boson transverse momentum, $p_{T}^{Z}$.

  • Table 7

    Data from Fig. 8

    10.17182/hepdata.69938.v1/t7

    Cross-section for $Z$+jet production, differential in the difference in $\phi$ between the $Z$ boson and the leading jet, $\Delta \phi$.

  • Table 8

    Data from Fig. 9

    10.17182/hepdata.69938.v1/t8

    Cross-section for $Z$+jet production, differential in the difference in rapidity between the $Z$ boson and the leading jet, $\Delta y$.

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