Measurement of the transverse momentum and ${\varphi }_{\eta }^{\ast }$ distributions of Drell-Yan lepton pairs in proton-proton collisions at $\sqrt{s}=8$ TeV with the ATLAS detector

Abstract

Distributions of transverse momentum $p_T^{ll}$ and the angular variable ${\varphi }_{\eta }^{\ast }$ of Drell--Yan lepton pairs are measured in 20.3 fb${}^{-1}$ of proton--proton collisions at $\sqrt{s}=8$ TeV with the ATLAS detector at the LHC. Measurements in electron-pair and muon-pair final states are corrected for detector effects and combined. Compared to previous measurements in proton--proton collisions at $\sqrt{s}=7$ TeV, these new measurements benefit from a larger data sample and improved control of systematic uncertainties. Measurements are performed in bins of lepton-pair mass above, around and below the Z-boson mass peak. The data are compared to predictions from perturbative and resummed QCD calculations. For values of ${\varphi }_{\eta }^{\ast }<1$ the predictions from the Monte Carlo generator ResBos are generally consistent with the data within the theoretical uncertainties. However, at larger values of ${\varphi }_{\eta }^{\ast }$ this is not generally the case. Monte Carlo generators based on the parton-shower approach are unable to describe the data over the full range of $p_T^{ll}$ and the fixed-order prediction of DYNNLO falls below the data at high values of $p_T^{ll}$. ResBos and the parton-shower Monte Carlo generators provide a much better description of the evolution of the ${\varphi }_{\eta }^{\ast }$ and $p_T^{ll}$ distributions as a function of lepton-pair mass and rapidity.

60 pages plus author list (77 pages total), 18 figures, 31 tables, submitted to EPJC, All figures including auxiliary figures are available at https://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/STDM-2014-12/

References in corpus (18)

• PYTHIA 6.4 Physics and Manual
• Event generation with SHERPA 1.1
• Herwig++ Physics and Manual
• Vector boson production at hadron colliders: a fully exclusive QCD calculation at NNLO
• Electroweak gauge boson production at hadron colliders through O(alpha_s^2)
• NLO vector-boson production matched with shower in POWHEG
• Measurement of the $Z/{\gamma }^{\ast }$ boson transverse momentum distribution in $pp$ collisions at $\sqrt{s}$ = 7 TeV with the ATLAS detector
• Electron and photon energy calibration with the ATLAS detector using LHC Run 1 data
• Measurement of the muon reconstruction performance of the ATLAS detector using 2011 and 2012 LHC proton-proton collision data
• Electron reconstruction and identification efficiency measurements with the ATLAS detector using the 2011 LHC proton-proton collision data
• Electron efficiency measurements with the ATLAS detector using 2012 LHC proton-proton collision data
• Mixed QCD-electroweak O(α_sα) corrections to Drell-Yan processes in the resonance region: pole approximation and non-factorizable corrections
• Measurement of the shape of the boson transverse momentum distribution in ppbar -> Z/gamma* -> ee+X events produced at sqrt{s}=1.96 TeV
• Optimisation of variables for studying dilepton transverse momentum distributions at hadron colliders
• Improved iterative Bayesian unfolding
• Measurement of the cross-section for Z->e+e- production in pp collisions at sqrt{s}=7TeV
• A Novel Technique for Studying the Z Boson Transverse Momentum Distribution at Hadron Colliders
• Measurement of the ${\varphi }_{\eta }^{\ast }$ distribution of muon pairs with masses between 30 and 500 GeV in 10.4 fb${}^{-1}$ of $p\bar{p}$ collisions

Cited by in corpus (89)

• Parton distributions from high-precision collider data
• New CTEQ global analysis of quantum chromodynamics with high-precision data from the LHC
• Muon reconstruction performance of the ATLAS detector in proton--proton collision data at $\sqrt{s}$=13 TeV
• How bright is the proton? A precise determination of the photon parton distribution function
• Illuminating the photon content of the proton within a global PDF analysis
• The Structure of the Proton in the LHC Precision Era
• Precision measurement and interpretation of inclusive $W^{+}$, $W^{-}$ and $Z/{\gamma }^{\ast }$ production cross sections with the ATLAS detector
• The PDF4LHC21 combination of global PDF fits for the LHC Run III
• Fiducial distributions in Higgs and Drell-Yan production at N${}^3$LL+NNLO
• Unpolarized Transverse Momentum Distributions from a global fit of Drell-Yan and Semi-Inclusive Deep-Inelastic Scattering data
• Collinear and TMD parton densities from fits to precision DIS measurements in the parton branching method
• CT14 Intrinsic Charm Parton Distribution Functions from CTEQ-TEA Global Analysis
• Snowmass 2021 whitepaper: Proton structure at the precision frontier
• Resummation of Transverse Momentum Distributions in Distribution Space
• Towards Quasi-Transverse Momentum Dependent PDFs Computable on the Lattice
• Measurements of differential Z boson production cross sections in proton-proton collisions at $\sqrt{s}=$ 13 TeV
• Measurement of the differential Drell-Yan cross section in proton-proton collisions at $\sqrt{s}=$ 13 TeV
• The transverse momentum spectrum of weak gauge bosons at N${}^3$LL+NNLO
• NNLO QCD corrections to the transverse momentum distribution of weak gauge bosons
• Precision Studies of QCD in the Low Energy Domain of the EIC
• Production of Z-bosons in the parton branching method
• Fiducial Drell-Yan production at the LHC improved by transverse-momentum resummation at N${}^4$LL+N${}^3$LO
• Towards Ultimate Parton Distributions at the High-Luminosity LHC
• Measurement of the exclusive $\gamma \gamma \to {\mu }^{+}{\mu }^{-}$ process in proton--proton collisions at $\sqrt{s}=13$ TeV with the ATLAS detector
• Measurement of the Drell--Yan triple-differential cross section in $pp$ collisions at $\sqrt{s}=8$ TeV
• Dynamical resolution scale in transverse momentum distributions at the LHC
• Non-perturbative contributions to vector-boson transverse momentum spectra in hadronic collisions
• The impact of the LHC Z-boson transverse momentum data on PDF determinations
• Measurement of differential cross sections and $W^{+}/W^{-}$ cross-section ratios for $W$ boson production in association with jets at $\sqrt{s}=8$ TeV with the ATLAS detector
• Constraints on charm-anticharm asymmetry in the nucleon from lattice QCD
• Factorization and Resummation for Massive Quark Effects in Exclusive Drell-Yan
• Difficulties in the description of Drell-Yan processes at moderate invariant mass and high transverse momentum
• Testing new physics models with global comparisons to collider measurements: the Contur toolkit
• Measurements of top-quark pair to $Z$-boson cross-section ratios at $\sqrt{s}=13,8,7$TeV with the ATLAS detector
• New sensitivity of current LHC measurements to vector-like quarks
• Mapping the sensitivity of hadronic experiments to nucleon structure
• Study of $WW\gamma$ and $WZ\gamma$ production in $pp$ collisions at $\sqrt{s}=8$ TeV and search for anomalous quartic gauge couplings with the ATLAS experiment
• Matching NNLO to parton shower using N${}^3$LL colour-singlet transverse momentum resummation in GENEVA
• Charting the coming synergy between lattice QCD and high-energy phenomenology
• The photon PDF within the CT18 global analysis
• Measurements of integrated and differential cross sections for isolated photon pair production in $pp$ collisions at $\sqrt{s}=8$ TeV with the ATLAS detector
• Event-Based Transverse Momentum Resummation
• Higher-Order Sudakov Resummation in Coupled Gauge Theories
• Accurate simulation of W, Z and Higgs boson decays in Sherpa
• Initial State Radiation in the Herwig 7 Angular-Ordered Parton Shower
• Measurement of the mass dependence of the transverse momentum of lepton pairs in Drell-Yan production in proton-proton collisions at $\sqrt{s}$ = 13 TeV
• Deuterium scattering experiments in CTEQ global QCD analyses: a comparative investigation
• $\mathcal{KK}\text{MC-hh}$: Resummed Exact $\mathcal{O}({\alpha }^{2}L)$ EW Corrections in a Hadronic MC Event Generator
• The NNLO QCD corrections to Z boson production at large transverse momentum
• Systematic Studies of Exact $\mathcal{O}({\alpha }^{2}L)$ CEEX EW Corrections in a Hadronic MC for Precision $Z/{\gamma }^{\ast }$ Physics at LHC Energies
• Physics with Leptons and Photons at the LHC
• Jet cross sections and transverse momentum distributions with NNLOJET
• Future tests of parton distributions
• Measurement of $W^{\pm }$-boson and $Z$-boson production cross-sections in $pp$ collisions at $\sqrt{s}=2.76$ TeV with the ATLAS detector
• Opportunities and Challenges of Standard Model Production Cross Section Measurements at 8 TeV using CMS Open Data
• A CT18 global PDF fit at the leading order in QCD
• Determination of the strong-coupling constant from the $Z$-boson transverse-momentum distribution
• Combining QED and Approximate N${}^3$LO QCD Corrections in a Global PDF Fit: MSHT20qed_an3lo PDFs
• A precise measurement of the Z-boson double-differential transverse momentum and rapidity distributions in the full phase space of the decay leptons with the ATLAS experiment at $\sqrt{s}$ = 8 TeV
• Efficient Fourier Transforms for Transverse Momentum Dependent Distributions
• QCD$\times$QED evolution of TMDs
• A Better Angle on Hadron Transverse Momentum Distributions at the EIC
• Analytic results for Sudakov form factors in QCD
• Measurement of differential cross sections in the kinematic angular variable ${\varphi }^{\ast }$ for inclusive Z boson production in pp collisions at $\sqrt{s}=$ 8 TeV
• Vector boson production in joint resummation
• Dark Matter from Anomaly Cancellation at the LHC
• Study of the normalized transverse momentum distribution of $W$ bosons produced in $p\bar{p}$ collisions at $\sqrt{s}=1.96$ TeV
• Precise measurements of $W$- and $Z$-boson transverse momentum spectra with the ATLAS detector using $pp$ collisions at $\sqrt{s}=5.02$ TeV and $13$ TeV
• Defiducialization: Providing Experimental Measurements for Accurate Fixed-Order Predictions
• Multi-jet physics at high-energy colliders and TMD parton evolution
• New CTEQ Global Analysis with High Precision Data from the LHC
• The analysis of Drell-Yan lepton pair production in the P-P(P) colliders using different angular ordering constraints and $k_t$-factorization approach
• Exploring non-perturbative Sudakov factor via $Z^0$-boson production in $pp$ collisions
• Measurement of the Z boson differential production cross section using its invisible decay mode (Z $\to$ $\nu \bar{\nu }$) in proton-proton collisions at $\sqrt{s}=$ 13 TeV
• Measurement of lepton-jet correlation in deep-inelastic scattering with the H1 detector using machine learning for unfolding
• W-boson production in TMD factorization
• Measurement of the production of a $W$ boson in association with a charmed hadron in $pp$ collisions at $\sqrt{s}=13\mathrm{TeV}$ with the ATLAS detector
• Energy-scaling behavior of intrinsic transverse momentum parameters in Drell-Yan simulation
• Determination of proton PDF uncertainties with Markov chain Monte Carlo
• TMD Evolution and Multi-Jet Merging
• Z+jet production at NNLO
• At the Frontier of Precision QCD in the LHC Era
• Accurate prediction of the ${\varphi }_{\eta }^{\ast }$ distribution for the forward Z boson production in pp collisions through NNLO+N${}^3$LL
• The Forward Physics Facility at the High-Luminosity LHC
• Coarse-grained binning in Drell-Yan transverse momentum spectra
• Impact of new measurements of light quarks at hadron colliders
• A New Herwig7 Underlying Event Tune: from RHIC to LHC Energies
• KKMC-hh: A Precision Event Generator for EW Radiative Corrections in Hadron Scattering
• A self-calibrating, double-ratio method to test tau lepton universality in W boson decays at the LHC