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Top quark physics at the LHC

open access: yesEPJ Web of Conferences, 2014
In 2011, an integrated luminosity of more than 5 fb−1 at 7 TeV has been delivered by the LHC. The measurement of the cross section in top quark pair production and in single top quark production, top quark mass, top quark properties and new physics ...
Jeong Kim Tae
doaj   +1 more source

Measurement of the mass difference between top quark and antiquark in pp collisions at s=8 TeV

open access: yesPhysics Letters B, 2017
The invariance of the standard model (SM) under the CPT transformation predicts equality of particle and antiparticle masses. This prediction is tested by measuring the mass difference between the top quark and antiquark (Δmt=mt−mt‾) that are produced in
S. Chatrchyan   +3 more
doaj   +1 more source

On the ATLAS top mass measurements and the potential for stealth stop contamination

open access: yesJournal of High Energy Physics, 2020
The discovery of the stop — the Supersymmetric partner of the top quark — is a key goal of the physics program enabled by the Large Hadron Collider. Although much of the accessible parameter space has already been probed, all current searches assume the ...
Timothy Cohen   +3 more
doaj   +1 more source

Four-top as probe of light top-philic New Physics

open access: yesJournal of High Energy Physics, 2019
We study the four-top (t t ¯ $$ \overline{t} $$ t t ¯ $$ \overline{t} $$ ) final state at the LHC as a probe for New Physics (NP) effects due to new particles that couple predominantly to the top quark and whose masses are below the top-quark-pair ...
Ezequiel Álvarez   +2 more
doaj   +1 more source

Measurements of tt¯ cross sections in association with b jets and inclusive jets and their ratio using dilepton final states in pp collisions at s=13TeV

open access: yesPhysics Letters B, 2018
The cross sections for the production of tt¯bb¯ and tt¯jj events and their ratio σtt¯bb¯/σtt¯jj are measured using data corresponding to an integrated luminosity of 2.3 fb−1collected in pp collisions at s=13 TeV with the CMS detector at the LHC.
A.M. Sirunyan, A. Tumasyan
doaj   +1 more source

Top Physics at ATLAS [PDF]

open access: yesProceedings of The XXI International Workshop High Energy Physics and Quantum Field Theory — PoS(QFTHEP 2013), 2014
This paper is an overview of recent results on top-quark physics obtained by the ATLAS Collaboration from the analysis of pp collisions at √s = 7 and 8TeV at the Large Hadron Collider. Total and differential top-quark pair (t¯t), single top and t¯t+γ cross-sections and top properties measurements are presented.
openaire   +2 more sources

Top quarks and flavor physics [PDF]

open access: yesPhysical Review D, 1995
Because of the top quark's very large mass, about 175~GeV, it now provides the best window into flavor physics. Thus, pair--production of top quarks at the Tevatron Collider is the best probe of this physics until the Large Hadron Collider turns on in the next century.
openaire   +4 more sources

Top quark physics with the CMS experiment

open access: yesEPJ Web of Conferences, 2014
An overview of recent top quark measurements in proton-proton collisions at √s = 7 and 8 TeV in data collected with the CMS experiment at the LHC, using a data sample collected during the years 2011 and 2012 is presented.
Cuevas Javier
doaj   +1 more source

Measurement of the cross section of top quark-antiquark pair production in association with a W boson in proton-proton collisions at s $$ \sqrt{s} $$ = 13 TeV

open access: yesJournal of High Energy Physics, 2023
The production of a top quark-antiquark pair in association with a W boson ( t t ¯ W $$ \textrm{t}\overline{\textrm{t}}\textrm{W} $$ ) is measured in proton-proton collisions at a center-of-mass energy of 13 TeV. The analyzed data was recorded by the CMS
The CMS collaboration   +2374 more
doaj   +1 more source

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