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Measurements of inclusive and differential production cross-sections of a top-quark-top-antiquark pair in association with a $W$ boson ($t\bar{t}W$) are presented. They are performed by targeting final states with two same-sign or three…

高能物理 - 实验 · 物理学 2024-05-20 The ATLAS Collaboration

Properties of the top-quark are presented, with emphasis on the most recent ATLAS measurements of the mass and $t\bar{t}$ spin correlations, obtained with proton-proton collision data collected at the Large Hadron Collider. Normalised…

高能物理 - 实验 · 物理学 2019-09-10 Markus Cristinziani

We present a measurement of tbar-t production using multijet final states in pbar-p collisions at a center-of-mass energy of 1.8 TeV, with an integrated luminosity of 110.3 pb(-1). The analysis has been optimized using neural networks to…

高能物理 - 实验 · 物理学 2008-11-26 B. Abbott

The production cross-section of high-mass $\tau$-lepton pairs is measured as a function of the dilepton visible invariant mass, using 140 fb$^{-1}$ of $\sqrt{s}=13$ TeV proton-proton collision data recorded with the ATLAS detector at the…

高能物理 - 实验 · 物理学 2025-10-21 The ATLAS Collaboration

A measurement of $t\bar{t}$ production is presented in the invariant-mass region near the pair production threshold, $m_{t\bar{t}} \sim 345$ GeV, in final states with two charged leptons and multiple jets. The measurement is based on…

高能物理 - 实验 · 物理学 2026-05-19 ATLAS Collaboration

The $t\bar{t}$ production cross-section is measured in the lepton+jets channel using proton$-$proton collision data at a centre-of-mass energy of $\sqrt{s}=13$ TeV collected with the ATLAS detector at the LHC. The dataset corresponds to an…

高能物理 - 实验 · 物理学 2020-11-10 ATLAS Collaboration

A measurement of the jet mass distribution in hadronic decays of Lorentz-boosted top quarks is presented. The measurement is performed in the lepton+jets channel of top quark pair production ($\mathrm{t\bar{t}}$) events, where the lepton is…

高能物理 - 实验 · 物理学 2023-07-06 CMS Collaboration

A review of ATLAS and CMS measurements of the inclusive $t\bar{t}$ production cross-section in $pp$ collisions at $\sqrt{s}=$7-13 TeV is presented, focusing on the most precise results in the dilepton and lepton+jets final states. The…

高能物理 - 实验 · 物理学 2017-11-21 Richard Hawkings

A search for four-top-quark production, $t\bar{t}t\bar{t}$, is presented. It is based on proton-proton collision data with a center-of-mass energy $\sqrt{s}$ = 13 TeV collected by the ATLAS detector at the Large Hadron Collider during the…

高能物理 - 实验 · 物理学 2019-04-08 ATLAS Collaboration

A measurement of the production cross section for a top quark pair in association with a $Z$ boson ($t\bar{t}Z$) is presented in this PhD thesis. Final states with exactly three charged leptons (electrons or muons) are used, taking into…

高能物理 - 实验 · 物理学 2018-02-19 Nils-Arne Rosien

The top-antitop quark (t t-bar) production cross section is measured in proton-proton collisions at sqrt(s) = 8 TeV with the CMS experiment at the LHC, using a data sample corresponding to an integrated luminosity of 5.3 inverse femtobarns.…

高能物理 - 实验 · 物理学 2014-02-17 CMS Collaboration

Measurements of the total and differential cross sections of Higgs boson production are performed using 20.3 fb$^{-1}$ of $pp$ collisions produced by the Large Hadron Collider at a center-of-mass energy of $\sqrt{s} = 8$ TeV and recorded by…

高能物理 - 实验 · 物理学 2015-12-22 ATLAS Collaboration

25 years after the top quark's discovery, the Large Hadron Collider at CERN produces proton-proton collision data on unprecedented scales at unprecedented energies - and has heralded an era of top-quark precision measurements. The…

高能物理 - 实验 · 物理学 2020-08-24 Knut Zoch

Inclusive and differential cross-sections for the production of a top-quark pair in association with a photon are measured with proton-proton collision data corresponding to an integrated luminosity of 36.1 fb$^{-1}$, collected by the ATLAS…

高能物理 - 实验 · 物理学 2019-06-06 ATLAS Collaboration

Inclusive multi-jet production is studied in proton-proton collisions at a center-of-mass energy of 7 TeV, using the ATLAS detector. The data sample corresponds to an integrated luminosity of 2.4 pb^-1. Results on multi-jet cross sections…

高能物理 - 实验 · 物理学 2015-03-19 ATLAS Collaboration

A measurement of the top-quark pair-production cross section in ppbar collisions at sqrt{s}=1.96 TeV using data corresponding to an integrated luminosity of 1.12/fb collected with the Collider Detector at Fermilab is presented. Decays of…

高能物理 - 实验 · 物理学 2012-08-27 The CDF Collaboration

A measurement of the top quark pair ($\mathrm{t\bar{t}}$) production cross section in proton-proton collisions at a centre-of-mass energy of 5.02 TeV is presented. The data were collected at the LHC in autumn 2017, in dedicated runs with…

高能物理 - 实验 · 物理学 2025-04-28 CMS Collaboration

Single- and double-differential cross-section measurements are presented for the production of top-quark pairs, in the lepton + jets channel at particle and parton level. Two topologies, resolved and boosted, are considered and the results…

高能物理 - 实验 · 物理学 2020-01-13 ATLAS Collaboration

We present recent preliminary measurements of the top-antitop pair production cross section and determinations of the top quark pole mass, performed using the data collected by the CDF and D0 Collaborations at the Tevatron Collider. In the…

高能物理 - 实验 · 物理学 2019-08-15 Lucio Cerrito

We report a measurement of the ttbar production cross section using the CDF II detector at the Fermilab Tevatron. The data consist of events with an energetic electron or muon, missing transverse energy, and three or more hadronic jets, at…

高能物理 - 实验 · 物理学 2012-08-27 CDF collaboration