Measurements of Z bosons plus jets using variables sensitive to double parton scattering in pp collisions at 13 TeV

The CMS collaboration
JHEP 10 (2021) 176, 2021.

Abstract (data abstract)
Double parton scattering is investigated using events with a Z boson and jets. The measurements are performed with proton-proton collision data recorded by the CMS experiment at the LHC at center-of-mass energy of 13 TeV corresponding to an integrated luminosity of 35.9 inverse femtobarns collected in year 2016. Differential cross section measurements of Z + ≥ 1 jet and Z+ ≥ 2 jet events are performed with transverse momenta of the jets above 20 GeV and pseudorapidity |eta| < 2.4. Several distributions with sensitivity to double parton scattering effects are measured, as functions of the angle and the transverse momentum imbalance between the Z boson and the jets. The measured distributions are compared with predictions from several event generators with different hadronization models and different parameter settings for multiparton interactions. It is observed that the measured distributions show a dependence on the hadronization and multiparton interaction simulation parameters and will hence be important input for future improvements of the simulations.

  • Table 1

    Data from Figure 2 (left)

    10.17182/hepdata.110665.v1/t1

    Differential cross sections as function of Delta Phi between Z boson and the leading jet for Z+ ≥ 1 jet...

  • Table 2

    Data from Figure 3 (left)

    10.17182/hepdata.110665.v1/t2

    Differential cross sections as function of transverse momentum imbalance between Z boson and the leading jet for Z+ ≥ 1...

  • Table 3

    Data from Figure 4 (left)

    10.17182/hepdata.110665.v1/t3

    Differential cross sections as function of Delta Phi between Z boson and dijet for Z+ ≥ 2 jets events.

  • Table 4

    Data from Figure 5 (left)

    10.17182/hepdata.110665.v1/t4

    Differential cross sections as function of transverse momentum imbalance between Z boson and dijet for Z+ ≥ 2 jets events.

  • Table 5

    Data from Figure 6 (left)

    10.17182/hepdata.110665.v1/t5

    Differential cross sections as function of transverse momentum imbalance between leading and subleading jet for Z+ ≥ 2 jets events.

  • Table 6

    Data from Figure 2 (right)

    10.17182/hepdata.110665.v1/t6

    Area normalized distribution as function of Delta Phi between Z boson and the leading jet for Z+ ≥ 1 jet...

  • Table 7

    Data from Figure 3 (right)

    10.17182/hepdata.110665.v1/t7

    Area normalized distribution as function of transverse momentum imbalance between Z boson and the leading jet for Z+ ≥ 1...

  • Table 8

    Data from Figure 4 (right)

    10.17182/hepdata.110665.v1/t8

    Area normalized distribution as function of Delta Phi between Z boson and dijet for Z+ ≥ 2 jets events.

  • Table 9

    Data from Figure 5 (right)

    10.17182/hepdata.110665.v1/t9

    Area normalized distribution as function of transverse momentum imbalance between Z boson and dijet for Z+ ≥ 2 jets events.

  • Table 10

    Data from Figure 6 (right)

    10.17182/hepdata.110665.v1/t10

    Area normalized distribution as function of transverse momentum imbalance between leading and subleading jet for Z+ ≥ 2 jets events

  • Table 11

    10.17182/hepdata.110665.v1/t11

    Response matrix for Delta Phi between Z boson and the leading jet for Z+ ≥ 1 jet events.

  • Table 12

    10.17182/hepdata.110665.v1/t12

    Response matrix for transverse momentum imbalance between Z boson and the leading jet for Z+ ≥ 1 jet events.

  • Table 13

    10.17182/hepdata.110665.v1/t13

    Response matrix for Delta Phi between Z boson and dijet for Z+ ≥ 2 jets events.

  • Table 14

    10.17182/hepdata.110665.v1/t14

    Response matrix for transverse momentum imbalance between Z boson and dijet for Z+ ≥ 2 jets events.

  • Table 15

    10.17182/hepdata.110665.v1/t15

    Response matrix for transverse momentum imbalance between the leading jet and subleading jet for Z+ ≥ 2 jets events.

  • Table 16

    10.17182/hepdata.110665.v1/t16

    Correlation matrix for Delta Phi between Z boson and the leading jet for Z+ ≥ 1 jet events (for absolute...

  • Table 17

    10.17182/hepdata.110665.v1/t17

    Correlation matrix for transverse momentum imbalance between Z boson and the leading jet for Z+ ≥ 1 jet events (for...

  • Table 18

    10.17182/hepdata.110665.v1/t18

    Correlation matrix for Delta Phi between Z boson and dijet for Z+ ≥ 2 jets events (for absolute differential cross...

  • Table 19

    10.17182/hepdata.110665.v1/t19

    Correlation matrix for transverse momentum imbalance between Z boson and dijet for Z+ ≥ 2 jets events (for absolute differential...

  • Table 20

    10.17182/hepdata.110665.v1/t20

    Correlation matrix for transverse momentum imbalance between the leading jet and subleading jet for Z+ ≥ 2 jets events (for...

  • Table 21

    10.17182/hepdata.110665.v1/t21

    Correlation matrix for Delta Phi between Z boson and the leading jet for Z+ ≥ 1 jet events (for normalized...

  • Table 22

    10.17182/hepdata.110665.v1/t22

    Correlation matrix for transverse momentum imbalance between Z boson and the leading jet for Z+ ≥ 1 jet events (for...

  • Table 23

    10.17182/hepdata.110665.v1/t23

    Correlation matrix for Delta Phi between Z boson and dijet for Z+ ≥ 2 jets events (for normalized differential cross...

  • Table 24

    10.17182/hepdata.110665.v1/t24

    Correlation matrix for transverse momentum imbalance between Z boson and dijet for Z+ ≥ 2 jets events (for normalized differential...

  • Table 25

    10.17182/hepdata.110665.v1/t25

    Correlation matrix for transverse momentum imbalance between the leading jet and subleading jet for Z+ ≥ 2 jets events (for...

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