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Related papers: Top-quark properties at ATLAS

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A search for heavy spin-1 and spin-2 resonances decaying into a top-antitop-quark pair has been performed with 140 fb$^{-1}$ of proton-proton collision data collected by the ATLAS experiment at the Large Hadron Collider at a centre-of-mass…

High Energy Physics - Experiment · Physics 2025-12-22 ATLAS Collaboration

The ttbar spin correlation at production is a fundamental prediction of QCD and a potentially incisive test of new physics coupled to top quarks. We measure the ttbar spin state in ppbar collisions at sqrt(s) = 1.96 TeV using 1001 candidate…

High Energy Physics - Experiment · Physics 2011-03-23 T. Aaltonen et al.

We employ a top-quark mass measurement technique in the dilepton channel with {\it in situ} jet energy scale calibration. Three variables having different jet energy scale dependences are used simultaneously to extract not only the…

High Energy Physics - Phenomenology · Physics 2012-09-19 Hyun Su Lee

The results of a search for direct pair production of top squarks in events with two opposite-charge leptons (electrons or muons) are reported, using 36.1 fb$^{-1}$ of integrated luminosity from proton--proton collisions at $\sqrt{s}=13$…

High Energy Physics - Experiment · Physics 2018-02-02 ATLAS Collaboration

A measurement of the cross section of top quark pair production in proton-proton collisions recorded with the ATLAS detector at the LHC at a centre-of-mass energy of 7 TeV is reported. The data sample used corresponds to an integrated…

High Energy Physics - Experiment · Physics 2013-06-25 ATLAS Collaboration

We present an analysis of dilepton events originating from top-antitop production in proton-antiproton collisions at sqrt{s}=1.8 TeV at the Fermilab Tevatron Collider. The sample corresponds to an integrated luminosity of 109+-7 pb^{-1}. We…

High Energy Physics - Experiment · Physics 2012-08-27 CDF collaboration

The t t-bar production cross section and top quark mass are measured in proton-proton collisions at sqrt(s) = 7 TeV in a data sample corresponding to an integrated luminosity of 36 inverse picobarns collected by the CMS experiment. The…

High Energy Physics - Experiment · Physics 2012-08-27 CMS Collaboration

Absolute and normalised differential cross-sections of single top quarks produced in the $t$-channel are presented. 20.2 fb$^{-1}$ of proton-proton collision data at a centre-of-mass energy of 8 TeV collected by the ATLAS experiment at the…

High Energy Physics - Experiment · Physics 2018-11-29 Pienpen Seema

To probe the $Wtb$ vertex structure, top-quark and $W$-boson polarisation observables are measured from $t$-channel single-top-quark events produced in proton--proton collisions at a centre-of-mass energy of 8 TeV. The dataset corresponds…

High Energy Physics - Experiment · Physics 2017-08-25 ATLAS Collaboration

A measurement of the associated production of a top-quark pair ($t\bar{t}$) with a vector boson ($W$, $Z$) in proton-proton collisions at a center-of-mass energy of 13 TeV is presented, using $36.1$ fb$^{-1}$ of integrated luminosity…

High Energy Physics - Experiment · Physics 2019-05-13 ATLAS Collaboration

The top-quark mass is measured in the all-hadronic top-antitop quark decay channel using proton-proton collisions at a centre-of-mass energy of $\sqrt{s}$ = 8 TeV with the ATLAS detector at the CERN Large Hadron Collider. The data set used…

High Energy Physics - Experiment · Physics 2017-10-06 ATLAS Collaboration

We present a measurement of the top quark pair production cross section in ppbar collisions at \sqrt{s}=1.96 TeV using approximately 1 fb^{-1} of data collected with the D0 detector. We consider decay channels containing two high pt charged…

High Energy Physics - Experiment · Physics 2009-09-28 The D0 Collaboration , V. Abazov

Differential and double-differential distributions of kinematic variables of leptons from decays of top-quark pairs ($t\bar{t}$) are measured using the full LHC Run 2 data sample collected with the ATLAS detector. The data were collected at…

High Energy Physics - Experiment · Physics 2023-09-07 ATLAS Collaboration

We investigate a number of observables that are and will be instrumental in the exploration of $\tbart$ production and decay at the Tevatron and the LHC. For this analysis we made a computer program that incorporates besides the NLO QCD…

High Energy Physics - Phenomenology · Physics 2014-11-20 Werner Bernreuther , Zong-Guo Si

We present a measurement of the top quark pair ttbar production cross section in ppbar collisions at a center-of-mass energy of 1.96 TeV using 230 pb**{-1} of data collected by the DO detector at the Fermilab Tevatron Collider. We select…

High Energy Physics - Experiment · Physics 2009-11-11 D0 Collaboration , V. M. Abazov

An overview of recent measurements of differential top quark pair ($t\bar{t}$) production cross sections is presented, including results in boosted topologies and results both at parton and particle level. The first measurements of…

High Energy Physics - Experiment · Physics 2014-12-01 C. Diez Pardos

We present measurements of the top quark mass in ttbar candidate events with two final state leptons using 1 inverse fb of data collected by the D0 experiment. Our data sample is selected by requiring two fully identified leptons or by…

High Energy Physics - Experiment · Physics 2009-12-10 D0 Collaboration , V. Abazov

We present a measurement of the top quark pair production cross section in ppbar collisions at sqrt(s)=1.96 TeV utilizing 425 pb-1 of data collected with the D0 detector at the Fermilab Tevatron Collider. We consider the final state of the…

High Energy Physics - Experiment · Physics 2010-04-08 D0 Collaboration , V. Abazov

In this document, differential cross-section measurements of $t$-channel single top-quark production are presented. 20.2fb$^{-1}$ of data collected by the ATLAS experiment in proton-proton collisions in the LHC at a centre-of-mass energy of…

High Energy Physics - Experiment · Physics 2019-08-13 Pienpen Seema

Measurements of the top--antitop quark pair production charge asymmetry in the dilepton channel, characterized by two high-${p}_{\rm{T}}$ leptons (electrons or muons), are presented using data corresponding to an integrated luminosity of…

High Energy Physics - Experiment · Physics 2016-10-20 ATLAS Collaboration