Now showing items 1-20 of 48

• #### Evidence for the associated production of the Higgs boson and a top quark pair with the ATLAS detector ﻿

(American Physical Society, 2018-04-09)
A search for the associated production of the Higgs boson with a top quark pair (t¯tH) is reported. The search is performed in multilepton final states using a data set corresponding to an integrated luminosity of 36.1  fb−1 ...
Journal article
• #### Measurement of $W$ boson angular distributions in events with high transverse momentum jets at $\sqrt{s}=$ 8 TeV using the ATLAS detector ﻿

(Elsevier, 2017-02)
The $W$ boson angular distribution in events with high transverse momentum jets is measured using data collected by the ATLAS experiment from proton--proton collisions at a centre-of-mass energy $\sqrt{s}=$ 8 TeV at the ...
Journal article
• #### Measurement of differential cross sections and W+/W− cross-section ratios for W boson production in association with jets at s√=8 TeV with the ATLAS detector ﻿

(Springer Berlin Heidelberg, 2018-05-11)
This paper presents a measurement of the W boson production cross section and the W +/W − cross-section ratio, both in association with jets, in proton-proton collisions at 𝑠√=8 TeV with the ATLAS experiment at the ...
Journal article
• #### Measurement of forward-backward multiplicity correlations in lead-lead, proton-lead, and proton-proton collisions with the ATLAS detector ﻿

(American Physical Society, 2017-06)
Two-particle pseudorapidity correlations are measured in $\sqrt{s_{\rm{NN}}}$ = 2.76 TeV Pb+Pb, $\sqrt{s_{\rm{NN}}}$ = 5.02 TeV $p$+Pb, and $\sqrt{s}$ = 13 TeV $pp$ collisions at the LHC, with total integrated luminosities ...
Journal article
• #### Measurement of inclusive jet and dijet cross-sections in proton-proton collisions at √s=13 TeV with the ATLAS detector ﻿

(Springer, 2018-05-30)
Inclusive jet and dijet cross-sections are measured in proton-proton collisions at a centre-of-mass energy of 13 TeV. The measurement uses a dataset with an integrated luminosity of 3.2 fb−1 recorded in 2015 with the ATLAS ...
Journal article
• #### Measurement of jet fragmentation in Pb+Pb collisions at $\sqrt{s_\mathrm{NN}} = 2.76$ TeV with the ATLAS detector at the LHC ﻿

(Springer, 2017-06)
The distributions of transverse momentum and longitudinal momentum fraction of charged particles in jets are measured in Pb+Pb and pp collisions with the ATLAS detector at the LHC. The distributions are measured as a ...
Journal article
• #### Measurement of multi-particle azimuthal correlations in $pp$, $p$+Pb and low-multiplicity Pb+Pb collisions with the ATLAS detector ﻿

(Springer, 2017-06)
Multi-particle cumulants and corresponding Fourier harmonics are measured for azimuthal angle distributions of charged particles in $pp$ collisions at $\sqrt{s}$ = 5.02 and 13 TeV and in $p$+Pb collisions at $\sqrt{s_{NN}}$ ...
Journal article
• #### Measurement of the $t\bar{t}Z$ and $t\bar{t}W$ production cross sections in multilepton final states using 3.2 fb$^{-1}$ of $pp$ collisions at $\sqrt{s}$ =13 TeV with the ATLAS detector ﻿

(Springer, 2017-01)
A measurement of the $t\bar{t}Z$ and $t\bar{t}W$ production cross sections in final states with either two same-charge muons, or three or four leptons (electrons or muons) is presented. The analysis uses a data sample of ...
Journal article
• #### A measurement of the calorimeter response to single hadrons and determination of the jet energy scale uncertainty using LHC Run-1 $pp$-collision data with the ATLAS detector ﻿

(Springer, 2017-01)
A measurement of the calorimeter response to isolated charged hadrons in the ATLAS detector at the LHC is presented. This measurement is performed with 3.2 nb$^{-1}$ of proton--proton collision data at $\sqrt{s}=7$ TeV ...
Journal article
• #### Measurement of the inclusive and fiducial tt¯ production cross-sections in the lepton+jets channel in pp collisions at √s=8 TeV with the ATLAS detector ﻿

(Springer Berlin Heidelberg, 2018-06-12)
The inclusive and fiducial 𝑡𝑡¯ production cross-sections are measured in the lepton+jets channel using 20.2 fb−1 of proton–proton collision data at a centre-of-mass energy of 8 TeV recorded with the ATLAS detector ...
Journal article
• #### Measurement of the prompt $J/\psi$ pair production cross-section in pp collisions at $\sqrt{s} = 8$ TeV with the ATLAS detector ﻿

(Springer, 2017-02)
The production of two prompt $J/\psi$ mesons, each with transverse momenta $p_{\mathrm{T}}>8.5$ GeV and rapidity $|y| < 2.1$, is studied using a sample of proton-proton collisions at $\sqrt{s} = 8$ TeV, corresponding to ...
Journal article
• #### Measurements of electroweak $Wjj$ production and constraints on anomalous gauge couplings with the ATLAS detector ﻿

(Springer, 2017-07)
Measurements of the electroweak production of a $W$ boson in association with two jets at high dijet invariant mass are performed using $\sqrt{s} = 7$ and $8$ TeV proton--proton collision data produced by the Large Hadron ...
Journal article
• #### Measurements of the production cross section of a $Z$ boson in association with jets in pp collisions at $\sqrt{s} = 13$ TeV with the ATLAS detector ﻿

(Springer, 2017-06)
Measurements of the production cross section of a $Z$ boson in association with jets in proton-proton collisions at $\sqrt{s} = 13$ TeV are presented, using data corresponding to an integrated luminosity of 3.16 fb$^{-1}$ ...
Journal article
• #### Measurements of t¯t differential cross-sections of highly boosted top quarks decaying to all-hadronic final states in pp collisions at √s=13  TeV using the ATLAS detector ﻿

(American Physical Society, 2018-07-25)
Measurements are made of differential cross-sections of highly boosted pair-produced top quarks as a function of top-quark and tt system kinematic observables using proton-proton collisions at a center-of-mass energy of ...
Journal article
• #### Observation of Higgs boson production in association with a top quark pair at the LHC with the ATLAS detector ﻿

(Elsevier, 2018-09-10)
The observation of Higgs boson production in association with a top quark pair (), based on the analysis of proton–proton collision data at a centre-of-mass energy of 13 TeV recorded with the ATLAS detector at the Large ...
Journal article
• #### Performance of the ATLAS Transition Radiation Tracker in Run 1 of the LHC: Tracker properties ﻿

(IOP, 2017)
The tracking performance parameters of the ATLAS Transition Radiation Tracker (TRT) as part of the ATLAS inner detector are described in this paper for different data-taking conditions in proton-proton, proton-lead and ...
Journal article
• #### Performance of the ATLAS trigger system in 2015 ﻿

(Springer, 2017-05)
During 2015 the ATLAS experiment recorded $3.8 \mathrm{fb}^{-1}$ of proton--proton collision data at a centre-of-mass energy of $13 \mathrm{TeV}$. The ATLAS trigger system is a crucial component of the experiment, responsible ...
Journal article
• #### Reconstruction of primary vertices at the ATLAS experiment in Run 1 proton-proton collisions at the LHC ﻿

(Springer, 2017-05)
This paper presents the method and performance of primary vertex reconstruction in proton--proton collision data recorded by the ATLAS experiment during Run 1 of the LHC. The studies presented focus on data taken during ...
Journal article
• #### Search for a heavy Higgs boson decaying into a Z boson and another heavy Higgs boson in the ℓℓbb final state in pp collisions at √s=13 TeV with the ATLAS detector ﻿

(Elsevier, 2018-08-10)
A search for a heavy neutral Higgs boson, A, decaying into a Z boson and another heavy Higgs boson, H, is performed using a data sample corresponding to an integrated luminosity of 36.1 fb−1 from proton– proton collisions ...
Journal article
• #### Search for a new heavy gauge-boson resonance decaying into a lepton and missing transverse momentum in 36 fb−1 of pp collisions at s√=13 TeV with the ATLAS experiment ﻿

(Springer, 2018)
The results of a search for new heavy 𝑊′ bosons decaying to an electron or muon and a neutrino using proton–proton collision data at a centre-of-mass energy of 𝑠√ = 13 TeV are presented. The dataset was collected ...
Journal article