Measurement of normalized differential $\mathrm{t}\overline{\mathrm{t}}$ cross sections in the dilepton channel from pp collisions at $\sqrt{s}=$ 13 TeV

Abstract

Normalized differential cross sections for top quark pair production are measured in the dilepton (e${}^{+}$e${}^{-}$, ${\mu }^{+}{\mu }^{-}$, and ${\mu }^{\mp }$e${}^{\pm }$) decay channels in proton-proton collisions at a center-of-mass energy of 13 TeV. The measurements are performed with data corresponding to an integrated luminosity of 2.1 fb${}^{-1}$ using the CMS detector at the LHC. The cross sections are measured differentially as a function of the kinematic properties of the leptons, jets from bottom quark hadronization, top quarks, and top quark pairs at the particle and parton levels. The results are compared to several Monte Carlo generators that implement calculations up to next-to-leading order in perturbative quantum chromodynamics interfaced with parton showering, and also to fixed-order theoretical calculations of top quark pair production up to next-to-next-to-leading order.

Replaced with the published version. Added the journal reference and the DOI. All the figures and tables can be found at http://cms-results.web.cern.ch/cms-results/public-results/publications/TOP-16-007/ (CMS Public Pages)

References in corpus (23)

• The automated computation of tree-level and next-to-leading order differential cross sections, and their matching to parton shower simulations
• Matching NLO QCD computations with Parton Shower simulations: the POWHEG method
• Herwig++ Physics and Manual
• Parton distributions in the LHC era: MMHT 2014 PDFs
• Comparative study of various algorithms for the merging of parton showers and matrix elements in hadronic collisions
• Tuning PYTHIA 8.1: the Monash 2013 Tune
• Single-top Wt-channel production matched with parton showers using the POWHEG method
• Single-top hadroproduction in association with a W boson
• MCFM for the Tevatron and the LHC
• Performance of CMS muon reconstruction in pp collision events at sqrt(s) = 7 TeV
• Jet energy scale and resolution in the CMS experiment in pp collisions at 8 TeV
• Performance of electron reconstruction and selection with the CMS detector in proton-proton collisions at sqrt(s) = 8 TeV
• ZZ production at hadron colliders in NNLO QCD
• $W^{+}{W}^{-}$ production at hadron colliders in NNLO QCD
• Measurement of the t t-bar production cross section in the dilepton channel in pp collisions at sqrt(s) = 7 TeV
• Differential top-antitop cross-section measurements as a function of observables constructed from final-state particles using pp collisions at $\sqrt{s}=7$ TeV in the ATLAS detector
• Measurement of double-differential cross sections for top quark pair production in pp collisions at sqrt(s) = 8 TeV and impact on parton distribution functions
• NNNLO soft-gluon corrections for the top-quark $p_T$ and rapidity distributions
• Top-quark pair production at hadron colliders: differential cross section and phenomenological applications with DiffTop
• Measurement of top quark pair differential cross-sections in the dilepton channel in $pp$ collisions at $\sqrt{s}$ = 7 and 8 TeV with ATLAS
• Measurement of the t t-bar production cross section using events in the e mu final state in pp collisions at sqrt(s) = 13 TeV
• Measurements of top-quark pair differential cross-sections in the $e\mu$ channel in $pp$ collisions at $\sqrt{s}=13$ TeV using the ATLAS detector
• Measurement of the differential cross sections for top quark pair production as a function of kinematic event variables in pp collisions at sqrt(s) = 7 and 8 TeV

Cited by in corpus (38)

• Extraction and validation of a new set of CMS PYTHIA8 tunes from underlying-event measurements
• Measurement of the $\mathrm{t}\overline{\mathrm{t}}$ production cross section, the top quark mass, and the strong coupling constant using dilepton events in pp collisions at $\sqrt{s}=$ 13 TeV
• Measurement of $\mathrm{t}\bar{\mathrm{t}}$ normalised multi-differential cross sections in pp collisions at $\sqrt{s}=13$ TeV, and simultaneous determination of the strong coupling strength, top quark pole mass, and parton distribution functions
• Search for heavy Higgs bosons decaying to a top quark pair in proton-proton collisions at $\sqrt{s}=$ 13 TeV
• Measurement of differential cross sections for the production of top quark pairs and of additional jets in lepton+jets events from pp collisions at $\sqrt{s}=$ 13 TeV
• Measurement of the top quark mass in the all-jets final state at $\sqrt{s}=$ 13 TeV and combination with the lepton+jets channel
• Measurements of $\mathrm{t}\overline{\mathrm{t}}$ differential cross sections in proton-proton collisions at $\sqrt{s}=$ 13 TeV using events containing two leptons
• Next-to-next-to-leading order event generation for top-quark pair production
• Measurement of jet substructure observables in $\mathrm{t}\overline{\mathrm{t}}$ events from proton-proton collisions at $\sqrt{s}=$ 13TeV
• Cornering sgluons with four-top-quark events
• Measurement of differential $\text{t}\overline{\text{t}}$ production cross sections in the full kinematic range using lepton+jets events from proton-proton collisions at $\sqrt{s}=$ 13 TeV
• Measurement of the top quark mass with lepton+jets final states using pp collisions at $\sqrt{s}=$ 13 TeV
• Measurement of the production cross section for single top quarks in association with W bosons in proton-proton collisions at $\sqrt{s}=$ 13 TeV
• Measurement of the single top quark and antiquark production cross sections in the $t$ channel and their ratio in proton-proton collisions at $\sqrt{s}=$ 13 TeV
• Measurements of top-quark pair single- and double-differential cross-sections in the all-hadronic channel in $pp$ collisions at $\sqrt{s}=13~\mbox{TeV}$ using the ATLAS detector
• Search for supersymmetry in events with a $\tau$ lepton pair and missing transverse momentum in proton-proton collisions at $\sqrt{s}=$ 13 TeV
• Running of the top quark mass from proton-proton collisions at $\sqrt{s}=$ 13 TeV
• Search for the production of four top quarks in the single-lepton and opposite-sign dilepton final states in proton-proton collisions at $\sqrt{s}=$ 13 TeV
• Search for single production of a vector-like $T$ quark decaying into a Higgs boson and top quark with fully hadronic final states using the ATLAS detector
• Measurements of differential cross sections of top quark pair production as a function of kinematic event variables in proton-proton collisions at $\sqrt{s}=$ 13 TeV
• Probing the quantum interference between singly and doubly resonant top-quark production in $pp$ collisions at $\sqrt{s}=13$ TeV with the ATLAS detector
• Top quark pair production in the exclusive processes at LHC
• Precision measurement of the W boson decay branching fractions in proton-proton collisions at $\sqrt{s}=$ 13 TeV
• Study of the underlying event in top quark pair production in pp collisions at 13 TeV
• Combined SMEFT interpretation of Higgs, diboson, and top quark data from the LHC
• Measurement of differential $\mathrm{t}\bar{\mathrm{t}}$ production cross sections using top quarks at large transverse momenta in pp collisions at $\sqrt{s}=$ 13 TeV
• Challenging exclusive top quark pair production at low and high luminosity LHC
• Search for resonances decaying to a pair of Higgs bosons in the $\mathrm{b}\overline{\mathrm{b}}\mathrm{q}{\overline{\mathrm{q}}}^{\prime }\ell \nu$ final state in proton-proton collisions at $\sqrt{s}=$ 13 TeV
• Measurement of the top quark mass using a profile likelihood approach with the lepton+jets final states in proton-proton collisions at $\sqrt{s}$ = 13 TeV
• Heavy quark radiation in NLO+PS POWHEG generators
• Search for a heavy resonance decaying to a top quark and a vector-like top quark in the lepton+jets final state in pp collisions at $\sqrt{s}=$ 13 TeV
• Measurement of the top quark pair production cross section in dilepton final states containing one $\tau$ lepton in pp collisions at $\sqrt{s}=$ 13 TeV
• Search for heavy resonances decaying to a pair of Lorentz-boosted Higgs bosons in final states with leptons and a bottom quark pair at $\sqrt{s}=$ 13 TeV
• Reconstruction of Missing Resonances Combining Nearest Neighbors Regressors and Neural Network Classifiers
• Reweighting simulated events using machine-learning techniques in the CMS experiment
• Measuring $|V_{ts}|$ directly using strange-quark tagging at the LHC
• Constraining dimension-6 SMEFT with higher-order predictions for $pp\to tW$
• Total and differential cross sections for Higgs and top-quark production