Now showing items 21-40 of 124

• #### Measurement of long-range multiparticle azimuthal correlations with the subevent cumulant method in pp and p +Pb collisions with the ATLAS detector at the CERN Large Hadron Collider ﻿

(Peer reviewed; Journal article, 2018-02-12)
A detailed study of multiparticle azimuthal correlations is presented using ppdata at √s=5.02 and 13 TeV, and p+Pb data at √sNN=5.02 TeV, recorded with the ATLAS detector at the CERN Large Hadron Collider. The azimuthal ...
• #### Measurement of long-range pseudorapidity correlations and azimuthal harmonics in $\sqrt{s_{\mathrm{NN}}}$=5.02 TeV proton-lead collisions with the ATLAS detector ﻿

(Peer reviewed; Journal article, 2014-10-09)
Measurements of two-particle correlation functions and the first five azimuthal harmonics, $v_1$ to $v_5$. are presented, using 28 $\mathrm{nb}^{-1}$ of $p$.Pb collisions at a nucleon-nucleon center-of-mass energy ...
• #### Measurement of longitudinal flow decorrelations in Pb+Pb collisions at sNN−−−√=2.76and 5.02 TeV with the ATLAS detector ﻿

(Peer reviewed; Journal article, 2018-02-19)
Measurements of longitudinal flow correlations are presented for charged particles in the pseudorapidity range |𝜂|<2.4 using 7 and 470 μb−1 of Pb+Pb collisions at 𝑠NN‾‾‾‾√=2.76 and 5.02 TeV, respectively, recorded by the ...
• #### Measurement of multi-particle azimuthal correlations in $pp$, $p$+Pb and low-multiplicity Pb+Pb collisions with the ATLAS detector ﻿

(Peer reviewed; Journal article, 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 ...
• #### Measurement of quarkonium production in proton–lead and proton–proton collisions at 5.02 TeVwith the ATLAS detector ﻿

(Peer reviewed; Journal article, 2018-02-28)
The modification of the production of 𝐽/𝜓 , 𝜓(2S) , and 𝛶(𝑛S) ( 𝑛=1,2,3 ) in p+Pb collisions with respect to their production in pp collisions has been studied. The p+Pb and pp datasets used in this paper correspond ...
• #### Measurement of Spin Correlation in Top-Antitop Quark Events and Search for Top Squark Pair Production in pp Collisions at s√=8  TeV Using the ATLAS Detector ﻿

(Peer reviewed; Journal article, 2015-04-08)
A measurement of spin correlation in tt ¯ production is presented using data collected with the ATLAS detector at the Large Hadron Collider in proton-proton collisions at a center-of-mass energy of 8 TeV, corresponding to ...
• #### Measurement of the centrality and pseudorapidity dependence of the integrated elliptic flow in lead–lead collisions at √sNN=2.76TeV with the ATLAS detector ﻿

(Peer reviewed; Journal article, 2014-08)
The integrated elliptic flow of charged particles produced in Pb+Pb collisions at √sNN=2.76 TeV has been measured with the ATLAS detector using data collected at the Large Hadron Collider. The anisotropy parameter, v₂ , ...
• #### Measurement of the charge asymmetry in dileptonic decays of top quark pairs in pp collisions at √s = 7 TeV using the ATLAS detector ﻿

(Peer reviewed; Journal article, 2015-05-12)
A measurement of the top-antitop (tt¯) charge asymmetry is presented using data corresponding to an integrated luminosity of 4.6 fb−1 of LHC pp collisions at a centreof-mass energy of 7 TeV collected by the ATLAS detector. ...
• #### Measurement of the cross section for isolated-photon plus jet production in pp collisions at √s = 13 TeV using the ATLAS detector ﻿

(Peer reviewed; Journal article, 2018-05)
The dynamics of isolated-photon production in association with a jet in proton–proton collisions at a centre-of-mass energy of 13 TeV are studied with the ATLAS detector at the LHC using a dataset with an integrated ...
• #### Measurement of the cross-section of high transverse momentum vector bosons reconstructed as single jets and studies of jet substructure in $pp$ collisions at ${\sqrt{s}}$ = 7 TeV with the ATLAS detector ﻿

(Peer reviewed; Journal article, 2014-11)
This paper presents a measurement of the cross-section for high transverse momentum $W$ and $Z$ bosons produced in $pp$ collisions and decaying to all-hadronic final states. The data used in the analysis were recorded ...
• #### Measurement of the electroweak production of dijets in association with a Z-boson and distributions sensitive to vector boson fusion in proton-proton collisions at √s= 8 TeV using the ATLAS detector ﻿

(Peer reviewed; Journal article, 2014-04-07)
Measurements of fiducial cross sections for the electroweak production of two jets in association with a Z-boson are presented. The measurements are performed using 20.3 fb−1 of proton-proton collision data collected at a ...
• #### Measurement of the exclusive γγ → μ+ μ− process in proton–proton collisions at √s = 13 TeV with the ATLAS detector ﻿

(Peer reviewed; Journal article, 2017-12-20)
The production of exclusive events in proton–proton collisions at a centre-of-mass energy of 13 TeV is measured with the ATLAS detector at the LHC, using data corresponding to an integrated luminosity of 3.2 fb−1. The ...
• #### Measurement of the forward-backward asymmetry of electron and muon pair-production in pp collisions at (Formula Presented.) = 7 TeV with the ATLAS detector ﻿

(Peer reviewed; Journal article, 2015-09-09)
This paper presents measurements from the ATLAS experiment of the forward-backward asymmetry in the reaction pp → Z/γ * → l + l −, with l being electrons or muons, and the extraction of the effective weak mixing angle. The ...
• #### Measurement of the Higgs boson coupling properties in the H → ZZ∗ → 4ℓ decay channel at s√=13TeV with the ATLAS detector ﻿

(Peer reviewed; Journal article, 2018-03-15)
The coupling properties of the Higgs boson are studied in the four-lepton (e, μ) decay channel using 36.1 fb−1 of pp collision data from the LHC at a centre-of-mass energy of 13 TeV collected by the ATLAS detector. Cross ...
• #### 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 ﻿

(Peer reviewed; Journal article, 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 at the ...
• #### Measurement of the inclusive isolated prompt photons cross section in pp collisions at √s =7TeV with the ATLAS detector using 4.6fb-1 ﻿

(Peer reviewed; Journal article, 2014-03)
A measurement of the cross section for the production of isolated prompt photons in pp collisions at a center-of-mass energy √s=7  TeV is presented. The results are based on an integrated luminosity of 4.6  fb−1 collected ...
• #### Measurement of the inclusive jet cross-section in proton-proton collisions at $\sqrt{s}=7$ TeV using 4.5 fb−1 of data with the ATLAS detector ﻿

(Peer reviewed; Journal article, 2015-02-24)
The inclusive jet cross-section is measured in proton-proton collisions at a centre-of-mass energy of 7 TeV using a data set corresponding to an integrated luminosity of 4.5 fb−1 collected with the ATLAS detector at the ...
• #### Measurement of the low-mass Drell-Yan differential cross section at √s = 7 TeV using the ATLAS detector ﻿

(Peer reviewed; Journal article, 2014-06)
The differential cross section for the process Z/γ ∗ → ℓℓ (ℓ = e, μ) as a function of dilepton invariant mass is measured in pp collisions at √s = 7 TeV at the LHC using the ATLAS detector. The measurement is performed in ...
• #### Measurement of the muon reconstruction performance of the ATLAS detector using 2011 and 2012 LHC proton–proton collision data ﻿

(Peer reviewed; Journal article, 2014-11-26)
This paper presents the performance of the ATLAS muon reconstruction during the LHC run with pp collisions at √s = 7–8 TeV in 2011–2012, focusing mainly on data collected in 2012. Measurements of the reconstruction efficiency ...
• #### Measurement of the parity-violating asymmetry parameter αb and the helicity amplitudes for the decay Λb0 →J /ψ Λ0 with the ATLAS detector ﻿

(Peer reviewed; Journal article, 2014-05-27)
A measurement of the parity-violating decay asymmetry parameter, αb, and the helicity amplitudes for the decay Λ0b→J/ψ(μ+μ−)Λ0(pπ−) is reported. The analysis is based on 1400 Λ0b and Λ¯0b baryons selected in 4.6  fb−1 of ...