The azimuthal correlation between the leading jet and the scattered lepton in deep inelastic scattering at HERA

The ZEUS collaboration
Eur.Phys.J.C 84 (2024) 1334, 2024.

Abstract (data abstract)
The azimuthal correlation angle, Δϕ, between the scattered lepton and the leading jet in deep inelastic e±p scattering at HERA has been studied using data collected with the ZEUS detector at a centre-of-mass energy of s=318GeV, corresponding to an integrated luminosity of 326pb1.A measurement of jet cross sections in the laboratory frame was made in a fiducial region corresponding to photon virtuality 10GeV2<Q2<350GeV2, inelasticity 0.04<y<0.7, outgoing lepton energy Ee>10GeV, lepton polar angle 140<θe<180, jet transverse momentum 2.5GeV<pT,jet<30GeV, and jet pseudorapidity 1.5<ηjet<1.8.Jets were reconstructed using the kT algorithm with the radius parameter R=1.The leading jet in an event is defined as the jet that carries the highest pT,jet.Differential cross sections, dσ/dΔϕ, were measured as a function of the azimuthal correlation angle in various ranges of leading-jet transverse momentum, photon virtuality and jet multiplicity.Perturbative calculations at O(αs2) accuracy successfully describe the data within the fiducial region, although a lower level of agreement is observed near Δϕπ for events with high jet multiplicity, due to limitations of the perturbative approach in describing soft phenomena in QCD.The data are equally well described by Monte Carlo predictions that supplement leading-order matrix elements with parton showering.

  • Table 1

    https://arxiv.org/abs/2406.01430

    10.17182/hepdata.153487.v1/t1

    Note: in the paper, uncertainties are given in relative terms. The HEPData table contains absolute numbers. The original data file,...

  • Table 2.1

    https://arxiv.org/abs/2406.01430

    10.17182/hepdata.153487.v1/t2

    Note: in the paper, uncertainties are given in relative terms. The HEPData table contains absolute numbers. The original data file,...

  • Table 2.2

    https://arxiv.org/abs/2406.01430

    10.17182/hepdata.153487.v1/t3

    Note: in the paper, uncertainties are given in relative terms. The HEPData table contains absolute numbers. The original data file,...

  • Table 2.3

    https://arxiv.org/abs/2406.01430

    10.17182/hepdata.153487.v1/t4

    Note: in the paper, uncertainties are given in relative terms. The HEPData table contains absolute numbers. The original data file,...

  • Table 3.1

    https://arxiv.org/abs/2406.01430

    10.17182/hepdata.153487.v1/t5

    Note: in the paper, uncertainties are given in relative terms. The HEPData table contains absolute numbers. The original data file,...

  • Table 3.2

    https://arxiv.org/abs/2406.01430

    10.17182/hepdata.153487.v1/t6

    Note: in the paper, uncertainties are given in relative terms. The HEPData table contains absolute numbers. The original data file,...

  • Table 3.3

    https://arxiv.org/abs/2406.01430

    10.17182/hepdata.153487.v1/t7

    Note: in the paper, uncertainties are given in relative terms. The HEPData table contains absolute numbers. The original data file,...

  • Table 4.1

    https://arxiv.org/abs/2406.01430

    10.17182/hepdata.153487.v1/t8

    Note: in the paper, uncertainties are given in relative terms. The HEPData table contains absolute numbers. The original data file,...

  • Table 4.2

    https://arxiv.org/abs/2406.01430

    10.17182/hepdata.153487.v1/t9

    Note: in the paper, uncertainties are given in relative terms. The HEPData table contains absolute numbers. The original data file,...

  • Table 4.3

    https://arxiv.org/abs/2406.01430

    10.17182/hepdata.153487.v1/t10

    Note: in the paper, uncertainties are given in relative terms. The HEPData table contains absolute numbers. The original data file,...

  • Table 5.1

    https://arxiv.org/abs/2406.01430

    10.17182/hepdata.153487.v1/t11

    Note: in the paper, uncertainties are given in relative terms. The HEPData table contains absolute numbers. The original data file,...

  • Table 5.2

    https://arxiv.org/abs/2406.01430

    10.17182/hepdata.153487.v1/t12

    Note: in the paper, uncertainties are given in relative terms. The HEPData table contains absolute numbers. The original data file,...

  • Table 5.3

    https://arxiv.org/abs/2406.01430

    10.17182/hepdata.153487.v1/t13

    Note: in the paper, uncertainties are given in relative terms. The HEPData table contains absolute numbers. The original data file,...

  • Table 6.1

    https://arxiv.org/abs/2406.01430

    10.17182/hepdata.153487.v1/t14

    Note: in the paper, uncertainties are given in relative terms. The HEPData table contains absolute numbers. The original data file,...

  • Table 6.2

    https://arxiv.org/abs/2406.01430

    10.17182/hepdata.153487.v1/t15

    Note: in the paper, uncertainties are given in relative terms. The HEPData table contains absolute numbers. The original data file,...

  • Table 6.3

    https://arxiv.org/abs/2406.01430

    10.17182/hepdata.153487.v1/t16

    Note: in the paper, uncertainties are given in relative terms. The HEPData table contains absolute numbers. The original data file,...

  • Table 7.1

    https://arxiv.org/abs/2406.01430

    10.17182/hepdata.153487.v1/t17

    Note: in the paper, uncertainties are given in relative terms. The HEPData table contains absolute numbers. The original data file,...

  • Table 7.2

    https://arxiv.org/abs/2406.01430

    10.17182/hepdata.153487.v1/t18

    Note: in the paper, uncertainties are given in relative terms. The HEPData table contains absolute numbers. The original data file,...

  • Table 7.3

    https://arxiv.org/abs/2406.01430

    10.17182/hepdata.153487.v1/t19

    Note: in the paper, uncertainties are given in relative terms. The HEPData table contains absolute numbers. The original data file,...

  • Table 8

    https://arxiv.org/abs/2406.01430

    10.17182/hepdata.153487.v1/t20

    QED correction factors for inclusive measurement, as estimated with RAPGAP.

  • Table 9.1.1

    https://arxiv.org/abs/2406.01430

    10.17182/hepdata.153487.v1/t21

    QED correction factors for 2.5GeV<pT,jetlead<7GeV and Njet1, as estimated with RAPGAP.

  • Table 9.1.2

    https://arxiv.org/abs/2406.01430

    10.17182/hepdata.153487.v1/t22

    QED correction factors for 2.5GeV<pT,jetlead<7GeV and Njet2, as estimated with RAPGAP.

  • Table 9.1.3

    https://arxiv.org/abs/2406.01430

    10.17182/hepdata.153487.v1/t23

    QED correction factors for 2.5GeV<pT,jetlead<7GeV and Njet3, as estimated with RAPGAP.

  • Table 9.2.1

    https://arxiv.org/abs/2406.01430

    10.17182/hepdata.153487.v1/t24

    QED correction factors for 7GeV<pT,jetlead<12GeV and Njet1, as estimated with RAPGAP.

  • Table 9.2.2

    https://arxiv.org/abs/2406.01430

    10.17182/hepdata.153487.v1/t25

    QED correction factors for 7GeV<pT,jetlead<12GeV and Njet2, as estimated with RAPGAP.

  • Table 9.2.3

    https://arxiv.org/abs/2406.01430

    10.17182/hepdata.153487.v1/t26

    QED correction factors for 7GeV<pT,jetlead<12GeV and Njet3, as estimated with RAPGAP.

  • Table 9.3.1

    https://arxiv.org/abs/2406.01430

    10.17182/hepdata.153487.v1/t27

    QED correction factors for 12GeV<pT,jetlead<30GeV and Njet1, as estimated with RAPGAP.

  • Table 9.3.2

    https://arxiv.org/abs/2406.01430

    10.17182/hepdata.153487.v1/t28

    QED correction factors for 12GeV<pT,jetlead<30GeV and Njet2, as estimated with RAPGAP.

  • Table 9.3.3

    https://arxiv.org/abs/2406.01430

    10.17182/hepdata.153487.v1/t29

    QED correction factors for 12GeV<pT,jetlead<30GeV and Njet3, as estimated with RAPGAP.

  • Table 10.1.1

    https://arxiv.org/abs/2406.01430

    10.17182/hepdata.153487.v1/t30

    QED correction factors for 10GeV2<Q2<50GeV2 and Njet1, as estimated with RAPGAP.

  • Table 10.1.2

    https://arxiv.org/abs/2406.01430

    10.17182/hepdata.153487.v1/t31

    QED correction factors for 10GeV2<Q2<50GeV2 and Njet2, as estimated with RAPGAP.

  • Table 10.1.3

    https://arxiv.org/abs/2406.01430

    10.17182/hepdata.153487.v1/t32

    QED correction factors for 10GeV2<Q2<50GeV2 and Njet3, as estimated with RAPGAP.

  • Table 10.2.1

    https://arxiv.org/abs/2406.01430

    10.17182/hepdata.153487.v1/t33

    QED correction factors for 50GeV2<Q2<100GeV2 and Njet1, as estimated with RAPGAP.

  • Table 10.2.2

    https://arxiv.org/abs/2406.01430

    10.17182/hepdata.153487.v1/t34

    QED correction factors for 50GeV2<Q2<100GeV2 and Njet2, as estimated with RAPGAP.

  • Table 10.2.3

    https://arxiv.org/abs/2406.01430

    10.17182/hepdata.153487.v1/t35

    QED correction factors for 50GeV2<Q2<100GeV2 and Njet3, as estimated with RAPGAP.

  • Table 10.3.1

    https://arxiv.org/abs/2406.01430

    10.17182/hepdata.153487.v1/t36

    QED correction factors for 100GeV2<Q2<350GeV2 and Njet1, as estimated with RAPGAP.

  • Table 10.3.2

    https://arxiv.org/abs/2406.01430

    10.17182/hepdata.153487.v1/t37

    QED correction factors for 100GeV2<Q2<350GeV2 and Njet2, as estimated with RAPGAP.

  • Table 10.3.3

    https://arxiv.org/abs/2406.01430

    10.17182/hepdata.153487.v1/t38

    QED correction factors for 100GeV2<Q2<350GeV2 and Njet3, as estimated with RAPGAP.

  • Figure 13

    https://arxiv.org/abs/2406.01430

    10.17182/hepdata.153487.v1/t39

    The correlation matrix for the inclusive measurement. The azimuthal correlation angle Δϕ of each lepton--leading-jet pair was assigned a bin...

  • Figure 14.1

    https://arxiv.org/abs/2406.01430

    10.17182/hepdata.153487.v1/t40

    The correlation matrix for 2.5GeV<pT,jetlead<7GeV. Other details are as in the caption to Fig....

  • Figure 14.2

    https://arxiv.org/abs/2406.01430

    10.17182/hepdata.153487.v1/t41

    The correlation matrix for 7GeV<pT,jetlead<12GeV. Other details are as in the caption to Fig....

  • Figure 14.3

    https://arxiv.org/abs/2406.01430

    10.17182/hepdata.153487.v1/t42

    The correlation matrix for 12GeV<pT,jetlead<30GeV. Other details are as in the caption to Fig....

  • Figure 14.4

    https://arxiv.org/abs/2406.01430

    10.17182/hepdata.153487.v1/t43

    The correlation matrix for 10GeV2<Q2<50GeV2. Other details are as in the caption to Fig....

  • Figure 14.5

    https://arxiv.org/abs/2406.01430

    10.17182/hepdata.153487.v1/t44

    The correlation matrix for 50GeV2<Q2<100GeV2. Other details are as in the caption to Fig....

  • Figure 14.6

    https://arxiv.org/abs/2406.01430

    10.17182/hepdata.153487.v1/t45

    The correlation matrix for 100GeV2<Q2<350GeV2. Other details are as in the caption to Fig....

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