Now showing items 41-60 of 100

• #### Measurement of the Z/γ* boson transverse momentum distribution in pp collisions at √s = 7 TeV with the ATLAS detector ﻿

(Peer reviewed; Journal article, 2014-09-24)
This paper describes a measurement of the Z/γ * boson transverse momentum spectrum using ATLAS proton-proton collision data at a centre-of-mass energy of s√=7 TeV at the LHC. The measurement is performed in the Z/γ * → e ...
• #### Measurement of three-jet production cross-sections in pp collisions at 7 TeV centre-of-mass energy using the ATLAS detector ﻿

(Peer reviewed; Journal article, 2015-05-27)
Double-differential three-jet production cross-sections are measured in proton–proton collisions at a centre-of-mass energy of s√=7TeV using the ATLAS detector at the large hadron collider. The measurements are presented ...
• #### Measurements of fiducial and differential cross sections for Higgs boson production in the diphoton decay channel at √s=8 TeV with ATLAS ﻿

(Peer reviewed; Journal article, 2014-09-19)
Measurements of fiducial and differential cross sections are presented for Higgs boson production in proton-proton collisions at a centre-of-mass energy of s√=8 TeV. The analysis is performed in the H → γγ decay channel ...
• #### Measurements of four-lepton production at the Z resonance in pp collisions at √s = 7 and 8 TeV with ATLAS ﻿

(Peer reviewed; Journal article, 2014-06-13)
Measurements of four-lepton (4ℓ, ℓ=e,μ) production cross sections at the Z resonance in pp collisions at the LHC with the ATLAS detector are presented. For dilepton and four-lepton invariant mass regions mℓ+ℓ−>5  GeV and ...
• #### Measurements of jet vetoes and azimuthal decorrelations in dijet events produced in $pp$ collisions at $\sqrt{s}$ = 7 TeV using the ATLAS detector ﻿

(Peer reviewed; Journal article, 2014-11)
Additional jet activity in dijet events is measured using $pp$ collisions at ATLAS at a centre-of-mass energy of 7 TeV, for jets reconstructed using the anti-kt algorithm with radius parameter R=0.6. This is done using ...
• #### Measurements of normalized differential cross-sections for $t\bar{t}$ production in $pp$ collisions at $\sqrt{s}$=7 TeV using the ATLAS detector ﻿

(Peer reviewed; Journal article, 2014-10)
Measurements of normalized differential cross-sections for top-quark pair production are presented as a~function of the top-quark transverse momentum, and of the mass, transverse momentum, and rapidity of the $t\bar{t}$ ...
• #### Measurements of spin correlation in top-antitop quark events from proton-proton collisions at $\sqrt{s}=7$ TeV using the ATLAS detector ﻿

(Peer reviewed; Journal article, 2014-12-24)
Measurements of spin correlation in top quark pair production are presented using data collected with the ATLAS detector at the LHC with proton--proton collisions at a center-of-mass energy of 7 TeV, corresponding to an ...
• #### 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 ﻿

(Peer reviewed; Journal article, 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 ...
• #### Measurements of the W production cross sections in association with jets with the ATLAS detector ﻿

(Peer reviewed; Journal article, 2015-02-19)
This paper presents cross sections for the production of a W boson in association with jets, measured in proton–proton collisions at √s=7TeV with the ATLAS experiment at the large hadron collider. With an integrated ...
• #### Muon reconstruction efficiency and momentum resolution of the ATLAS experiment in proton–proton collisions at √s=7 TeV in 2010 ﻿

(Peer reviewed; Journal article, 2014-09)
This paper presents a study of the performance of the muon reconstruction in the analysis of proton–proton collisions at √s = 7TeV at the LHC, recorded by the ATLAS detector in 2010. This performance is described in terms ...
• #### Observation of an excited B[± over c] meson state with the ATLAS detector ﻿

(Peer reviewed; Journal article, 2014-11-21)
A search for excited states of the B[± over c] meson is performed using 4.9  fb[superscript −1] of 7 TeV and 19.2  fb[superscript −1] of 8 TeV pp collision data collected by the ATLAS experiment at the LHC. A new state is ...
• #### Performance of the ATLAS muon trigger in pp collisions at $\sqrt{s})$8 TeV ﻿

(Peer reviewed; Journal article, 2015-03-13)
The performance of the ATLAS muon trigger system has been evaluated with proton--proton collision data collected in 2012 at the Large Hadron Collider at a centre-of-mass energy of 8 TeV. The performance was primarily ...
• #### Performance of the ATLAS trigger system in 2015 ﻿

(Peer reviewed; Journal article, 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, ...
• #### Reconstruction of primary vertices at the ATLAS experiment in Run 1 proton-proton collisions at the LHC ﻿

(Peer reviewed; Journal article, 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 ...
• #### Search for a Multi-Higgs Boson Cascade in $W^+W^− b\bar{b}$ events with the ATLAS detector in pp collisions at √s = 8 TeV ﻿

(Peer reviewed; Journal article, 2014-02-19)
A search is presented for new particles in an extension to the Standard Model that includes a heavy Higgs boson $H^0$ , an intermediate charged Higgs boson (H±), and a light Higgs boson $h^0$ . The analysis searches ...
• #### Search for anomalous production of prompt same-sign lepton pairs and pair-produced doubly charged Higgs bosons with $\sqrt{s}$ = 8 TeV $pp$ collisions using the ATLAS detector ﻿

(Peer reviewed; Journal article, 2015-03-09)
A low-background inclusive search for new physics in events with same-sign dileptons is presented. The search uses proton--proton collisions corresponding to 20.3 fb$^{-1}$ of integrated luminosity taken in 2012 at a ...
• #### Search for contact interactions and large extra dimensions in the dilepton channel using proton–proton collisions at √s=8 TeV with the ATLAS detector ﻿

(Peer reviewed; Journal article, 2014-12-11)
A search is conducted for non-resonant new phenomena in dielectron and dimuon final states, originating from either contact interactions or large extra spatial dimensions. The LHC 2012 proton–proton collision dataset ...
• #### Search for dark matter in association with a Higgs boson decaying to $b$-quarks in $pp$ collisions at $\sqrt{s} = 13$ TeV with the ATLAS detector ﻿

(Peer reviewed; Journal article, 2017-02)
A search for dark matter pair production in association with a Higgs boson decaying to a pair of bottom quarks is presented, using 3.2 $fb^{-1}$ of $pp$ collisions at a centre-of-mass energy of 13 TeV collected by the ...
• #### Search for dark matter in events with a hadronically decaying W or Z boson and missing transverse momentum in pp collisions at √s = 8 TeV with the ATLAS detector ﻿

(Peer reviewed; Journal article, 2014-01-29)
A search is presented for dark matter pair production in association with a W or Z boson in pp collisions representing 20.3  fb−1 of integrated luminosity at s√=8  TeV using data recorded with the ATLAS detector at the ...
• #### Search for dark matter in events with a Z boson and missing transverse momentum in pp collisions at √s = 8TeV with the ATLAS detector ﻿

(Peer reviewed; Journal article, 2014-07-10)
A search is presented for production of dark-matter particles recoiling against a leptonically decaying Z boson in 20.3  fb⎻¹ of pp collisions at s√=8  TeV with the ATLAS detector at the Large Hadron Collider. Events with ...