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Study of Drell-Yan dimuon production in proton-lead collisions at $\sqrt{s_\mathrm{NN}} =$ 8.16 TeV

The CMS collaboration
CMS-HIN-18-003, 2021.

Abstract (data abstract)
Differential cross sections for the Drell-Yan process, including Z boson production, using the dimuon decay channel are measured in proton-lead (pPb) collisions at a nucleon-nucleon centre-of-mass energy of 8.16 TeV. A data sample recorded with the CMS detector at the LHC is used, corresponding to an integrated luminosity of 173 nb$^{-1}$. The differential cross section as a function of the dimuon mass is measured in the range 15-600 GeV, for the first time in proton-nucleus collisions. It is also reported as a function of dimuon rapidity over the mass ranges 15-60 GeV and 60-120 GeV, and ratios for the p-going over the Pb-going beam directions are built. In both mass ranges, the differential cross sections as functions of the dimuon transverse momentum $p_\textrm{T}$ and of a geometric variable $\phi^{*}$ are measured, where $\phi^{*}$ highly correlates with $p_\textrm{T}$ but is determined with higher precision. In the Z mass region, the rapidity dependence of the data indicate a modification of the distribution of partons within a lead nucleus as compared to the proton case. The data are more precise than predictions based upon current models of parton distributions.

  • Table 1

    Data from Figure 5 a

    10.17182/hepdata.88292.v1/t1

    Differential fiducial cross section (without the acceptance correction) for the DY process measured in the muon channel, as a function...

  • Table 2

    Data from Figure 5 b

    10.17182/hepdata.88292.v1/t2

    Differential fiducial cross section (without the acceptance correction) for the DY process measured in the muon channel, as a function...

  • Table 3

    Data from Figure 5 c

    10.17182/hepdata.88292.v1/t3

    Differential fiducial cross section (without the acceptance correction) for the DY process measured in the muon channel, as a function...

  • Table 4

    Data from Figure 6 a

    10.17182/hepdata.88292.v1/t4

    Differential fiducial cross section (without the acceptance correction) for the DY process measured in the muon channel, as a function...

  • Table 5

    Data from Figure 6 b

    10.17182/hepdata.88292.v1/t5

    Differential fiducial cross section (without the acceptance correction) for the DY process measured in the muon channel, as a function...

  • Table 6

    Data from Figure 6 c

    10.17182/hepdata.88292.v1/t6

    Differential fiducial cross section (without the acceptance correction) for the DY process measured in the muon channel, as a function...

  • Table 7

    Data from Figure 6 d

    10.17182/hepdata.88292.v1/t7

    Differential fiducial cross section (without the acceptance correction) for the DY process measured in the muon channel, as a function...

  • Table 8

    Paper text (Section 3)

    10.17182/hepdata.88292.v1/t8

    Integrated fiducial cross section for the DY process measured in the muon channel. The quoted error is the quadratic sum...

  • Table 9

    Data from Figure 7 a

    10.17182/hepdata.88292.v1/t9

    Differential cross section for the DY process measured in the muon channel, as a function of dimuon invariant mass. The...

  • Table 10

    Data from Figure 7 b

    10.17182/hepdata.88292.v1/t10

    Differential cross section for the DY process measured in the muon channel, as a function of rapidity in the centre-of-mass...

  • Table 11

    Data from Figure 7 c

    10.17182/hepdata.88292.v1/t11

    Differential cross section for the DY process measured in the muon channel, as a function of rapidity in the centre-of-mass...

  • Table 12

    Data from Figure 8 a

    10.17182/hepdata.88292.v1/t12

    Differential cross section for the DY process measured in the muon channel, as a function of $p_{\textrm{T}}$ for $15<m_{\mu\mu}<60$ GeV....

  • Table 13

    Data from Figure 8 b

    10.17182/hepdata.88292.v1/t13

    Differential cross section for the DY process measured in the muon channel, as a function of $p_{\textrm{T}}$ for $60<m_{\mu\mu}<120$ GeV....

  • Table 14

    Data from Figure 8 c

    10.17182/hepdata.88292.v1/t14

    Differential cross section for the DY process measured in the muon channel, as a function of $\phi^*$ for $15<m_{\mu\mu}<60$ GeV....

  • Table 15

    Data from Figure 8 d

    10.17182/hepdata.88292.v1/t15

    Differential cross section for the DY process measured in the muon channel, as a function of $\phi^*$ for $60<m_{\mu\mu}<120$ GeV....

  • Table 16

    Paper text (Section 3)

    10.17182/hepdata.88292.v1/t16

    Integrated cross section for the DY process measured in the muon channel. The quoted error is the quadratic sum of...

  • Table 17

    Data from Figure 9 a

    10.17182/hepdata.88292.v1/t17

    Forward-backward ratios for $15<m_{\mu\mu}<60$ GeV. Quoted uncertainties are the quadratic sum of the statistical and systematic uncertainties.

  • Table 18

    Data from Figure 9 b

    10.17182/hepdata.88292.v1/t18

    Forward-backward ratios for $60<m_{\mu\mu}<120$ GeV. Quoted uncertainties are the quadratic sum of the statistical and systematic uncertainties.

  • Table 19

    Data from Figure 3 a

    10.17182/hepdata.88292.v1/t19

    Correlation matrix for the systematic uncertainties, excluding integrated luminosity, as a function of dimuon invariant mass.

  • Table 20

    Data from Figure 3 b

    10.17182/hepdata.88292.v1/t20

    Correlation matrix for the systematic uncertainties, excluding integrated luminosity, as a function of rapidity in the centre-of-mass frame for $15<m_{\mu\mu}<60$...

  • Table 21

    Data from Figure 3 c

    10.17182/hepdata.88292.v1/t21

    Correlation matrix for the systematic uncertainties, excluding integrated luminosity, as a function of rapidity in the centre-of-mass frame for $60<m_{\mu\mu}<120$...

  • Table 22

    Data from Figure 4 a

    10.17182/hepdata.88292.v1/t22

    Correlation matrix for the systematic uncertainties, excluding integrated luminosity, as a function of $p_{\textrm{T}}$ for $15<m_{\mu\mu}<60$ GeV.

  • Table 23

    Data from Figure 4 b

    10.17182/hepdata.88292.v1/t23

    Correlation matrix for the systematic uncertainties, excluding integrated luminosity, as a function of $p_{\textrm{T}}$ for $60<m_{\mu\mu}<120$ GeV.

  • Table 24

    Data from Figure 4 c

    10.17182/hepdata.88292.v1/t24

    Correlation matrix for the systematic uncertainties, excluding integrated luminosity, as a function of $\phi^*$ for $15<m_{\mu\mu}<60$ GeV.

  • Table 25

    Data from Figure 4 d

    10.17182/hepdata.88292.v1/t25

    Correlation matrix for the systematic uncertainties, excluding integrated luminosity, as a function of $\phi^*$ for $60<m_{\mu\mu}<120$ GeV.

  • Table 26

    Data from Figure 3

    10.17182/hepdata.88292.v1/t26

    Correlation matrix for the systematic uncertainties, excluding integrated luminosity, as a function of rapidity in the centre-of-mass frame, putting together...

  • Table 27

    Data from Figure 4

    10.17182/hepdata.88292.v1/t27

    Correlation matrix for the systematic uncertainties, excluding integrated luminosity, as a function of $p_{\textrm{T}}$, putting together low and high masses....

  • Table 28

    Data from Figure 4

    10.17182/hepdata.88292.v1/t28

    Correlation matrix for the systematic uncertainties, excluding integrated luminosity, as a function of $\phi^*$, putting together low and high masses....

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