Measurements of the Cross-Section for the $t\bar{t}$ + Heavy-Flavor Production at the LHC

Abstract

At the LHC, the process of a Higgs boson decaying into bottom or charm quarks produced in association with a pair of top quarks, ttbarH , allows for an empirical exploration of the heavy-flavor quark Yukawa couplings to the Higgs boson. Accordingly, the cross-sections for the $t\bar{t}$ + heavy-flavor production without the appearance of the Higgs boson have been measured at the LHC in various phase spaces using data samples collected in pp collisions at $\sqrt{s}$ = 7, 8 and 13 TeV with the ATLAS and CMS experiments. Flavor ratios of cross-sections of $t\bar{t}$ + heavy-flavors to $t\bar{t}$ + additional jets processes are also measured. In this paper, the measured cross-sections and ratios are reviewed and the prospects with more data are presented.

arXiv comment20 pages, 13 figures

References in corpus (45)

• PYTHIA 6.4 Physics and Manual
• PYTHIA 6.2 Physics and Manual
• The automated computation of tree-level and next-to-leading order differential cross sections, and their matching to parton shower simulations
• An Introduction to PYTHIA 8.2
• A general framework for implementing NLO calculations in shower Monte Carlo programs: the POWHEG BOX
• A New Method for Combining NLO QCD with Shower Monte Carlo Algorithms
• Matching NLO QCD computations with Parton Shower simulations: the POWHEG method
• MadGraph 5 : Going Beyond
• Event generation with SHERPA 1.1
• Herwig++ Physics and Manual
• Scattering Amplitudes with Open Loops
• Top++: a program for the calculation of the top-pair cross-section at hadron colliders
• Herwig 7.0 / Herwig++ 3.0 Release Note
• A parton shower algorithm based on Catani-Seymour dipole factorisation
• A Positive-Weight Next-to-Leading-Order Monte Carlo for Heavy Flavour Hadroproduction
• Comix, a new matrix element generator
• Merging meets matching in MC@NLO
• Top-pair production at hadron colliders with next-to-next-to-leading logarithmic soft-gluon resummation
• Observation of Higgs boson production in association with a top quark pair at the LHC with the ATLAS detector
• Assault on the NLO Wishlist: pp -> tt bb
• Observation of $\mathrm{t}\overline{\mathrm{t}}$H production
• NLO QCD corrections to pp -> t anti-t b anti-b + X at the LHC
• NLO QCD corrections to top anti-top bottom anti-bottom production at the LHC: 2. full hadronic results
• NLO QCD corrections to top anti-top bottom anti-bottom production at the LHC: 1. quark-antiquark annihilation
• NLO matching for ttbb production with massive b-quarks
• New NLOPS predictions for $\mathbf{t}\bar{\mathbf{t}}+\mathbf{b}$-jet production at the LHC
• Next-to-leading order QCD predictions for top-quark pair production with up to two jets merged with a parton shower
• Measurements of fiducial and differential cross-sections of $t\bar{t}$ production with additional heavy-flavour jets in proton-proton collisions at $\sqrt{s}$ = 13 TeV with the ATLAS detector
• Measurements of fiducial cross-sections for $t\bar{t}$ production with one or two additional $b$-jets in $pp$ collisions at $\sqrt{s}$ = 8 TeV using the ATLAS detector
• In-medium covariant propagator of baryons under a strong magnetic field: effect of the intrinsic magnetic moments
• Measurement of the $\mathrm{t}\bar{\mathrm{t}}\mathrm{b}\bar{\mathrm{b}}$ production cross section in the all-jet final state in pp collisions at $\sqrt{s}=$ 13 TeV
• Measurement of t t-bar production with additional jet activity, including b quark jets, in the dilepton channel using pp collisions at sqrt(s) = 8 TeV
• Measurements of tt-bar cross sections in association with b jets and inclusive jets and their ratio using dilepton final states in pp collisions at sqrt(s) = 13 TeV
• Next-to-leading order QCD predictions for top-quark pair production with up to three jets
• On the ratio of ttbb and ttjj cross sections at the CERN Large Hadron Collider
• Measurement of the cross section ratio sigma(t t-bar b b-bar) / sigma(t t-bar jj) in pp collisions at sqrt(s) = 8 TeV
• A study of heavy flavor quarks produced in association with top quark pairs at sqrt(s) = 7 TeV using the ATLAS detector
• $t\bar{t}b\bar{b}$ at the LHC: On the size of corrections and $b$-jet definitions
• Hadroproduction of $t\bar{t}b\bar{b}$ final states at LHC: predictions at NLO accuracy matched with Parton Shower
• Measurement of the cross section for $\text{t}\bar{\text{t}}$ production with additional jets and b jets in pp collisions at $\sqrt{s}=$ 13 TeV
• Full NLO QCD corrections to off-shell ttbb production
• Learning to pinpoint effective operators at the LHC: a study of the $t\bar{t}b\bar{b}$ signature
• NLO QCD predictions for $t\bar{t}b\bar{b}$ production in association with a light jet at the LHC
• On the next-to-leading order QCD K-factor for top anti-top bottom anti-bottom production at the TeVatron
• First measurement of the cross section for top quark pair production with additional charm jets using dileptonic final states in pp collisions at $\sqrt{s}=$ 13 TeV