116 Result(s)
within
Article
**an-Tong Chen
Elementary Particles, Quantum Field Theory
-
Article
Measurement of electroweak parameters from hadronic and leptonic decays of theZ 0
We have studied the reactionse + e −→hadrons,e + e −, μ+ μ− and τ+ τ−, in the energy range 88.2 \( \leqq \sqrt s \leqq 94.2\) ...
-
Article
Open AccessPerformance of the ATLAS detector using first collision data
More than half a million minimum-bias events of LHC collision data were collected by the ATLAS experiment in December 2009 at centre-of-mass energies of 0.9 TeV and 2.36 TeV. This paper reports on studies of t...
-
Article
Open AccessReadiness of the ATLAS liquid argon calorimeter for LHC collisions
The ATLAS liquid argon calorimeter has been operating continuously since August 2006. At this time, only part of the calorimeter was readout, but since the beginning of 2008, all calorimeter cells have been co...
-
Article
Open AccessMeasurement of the W → ℓν and Z/γ * → ℓℓ production cross sections in proton-proton collisions at \( \sqrt {s} = 7\;{\text{TeV}} \) with the ATLAS detector
First measurements of the W → ℓν and Z/γ * → ℓℓ (ℓ = e, μ) production cross sections in proton-proton collisions at
-
Article
Measurement of the top quark-pair production cross section with ATLAS in pp collisions at \(\sqrt{s}=7\) TeV
A measurement of the production cross-section for top quark pairs ( \(t\bar{t}\) ) in pp collisions at ...
-
Article
Open AccessLuminosity determination in pp collisions at \(\sqrt{s} = 7\) TeV using the ATLAS detector at the LHC
Measurements of luminosity obtained using the ATLAS detector during early running of the Large Hadron Collider (LHC) at \(\sqrt{s} = 7\) ...
-
Article
Open AccessMeasurement of dijet production with a veto on additional central jet activity in pp collisions at \( \sqrt {s} = 7 \) TeV using the ATLAS detector
A measurement of jet activity in the rapidity interval bounded by a dijet system is presented. Events are vetoed if a jet with transverse momentum greater than 20 GeV is found between the two boundary jets. Th...
-
Article
Open AccessSearch for diphoton events with large missing transverse energy with 36 pb−1 of 7 TeV proton–proton collision data with the ATLAS detector
Making use of 36 pb−1 of proton–proton collision data at \(\sqrt{s} =7\) TeV, the ATLAS Collaboration has performed a search for ...
-
Article
Open AccessInclusive search for same-sign dilepton signatures in pp collisions at \( \sqrt {s} = 7 \) TeV with the ATLAS detector
An inclusive search is presented for new physics in events with two isolated leptons (e or μ) having the same electric charge. The data are selected from events collected from pp collisions at
-
Article
Open AccessPerformance of the ATLAS Trigger System in 2010
Proton–proton collisions at \(\sqrt{s}=7\) TeV and heavy ion collisions at ...
-
Article
Open AccessPerformance of missing transverse momentum reconstruction in proton-proton collisions at \(\sqrt{s} = 7~\mbox{TeV}\) with ATLAS
The measurement of missing transverse momentum in the ATLAS detector, described in this paper, makes use of the full event reconstruction and a calibration based on reconstructed physics objects. The performan...
-
Article
Open AccessRapidity gap cross sections measured with the ATLAS detector in pp collisions at \(\sqrt{s} = 7 \mbox{~TeV}\)
Pseudorapidity gap distributions in proton-proton collisions at \(\sqrt {s} =7~\mbox{~TeV}\) are studied using a minimum bias dat...
-
Article
Open AccessSearch for same-sign top-quark production and fourth-generation down-type quarks in pp collisions at \( \sqrt {s} = {7}\;{\text{TeV}} \) with the ATLAS detector
A search is presented for same-sign top-quark production and down-type heavy quarks of charge −1/3 in events with two isolated leptons (e or μ) that have the same electric charge, at least two jets and large miss...
-
Article
Open AccessMeasurement of the charge asymmetry in top quark pair production in pp collisions at \(\sqrt{s}=7\ \mathrm{TeV}\) using the ATLAS detector
A measurement of the top-antitop production charge asymmetry A C is presented using data corresponding to an integrated luminosity of 1.04 fb−1 of pp collisions...
-
Article
Open AccessJet energy measurement with the ATLAS detector in proton-proton collisions at \(\sqrt{\mathrm{s}}=7\ \mathrm{TeV}\)
The jet energy scale and its systematic uncertainty are determined for jets measured with the ATLAS detector at the LHC in proton-proton collision data at a centre-of-mass energy of
-
Article
Open AccessSearch for new phenomena with photon+jet events in proton-proton collisions at \( \sqrt{s}=13 \) TeV with the ATLAS detector
A search is performed for the production of high-mass resonances decaying into a photon and a jet in 3.2 fb−1 of proton-proton collisions at a centre-of-mass energy of
-
Article
Open AccessSearch for new phenomena in events with a photon and missing transverse momentum in pp collisions at \( \sqrt{s}=13 \) TeV with the ATLAS detector
Results of a search for new phenomena in events with an energetic photon and large missing transverse momentum with the ATLAS experiment at the Large Hadron Collider are reported. The data were collected in pr...
-
Article
Open AccessMeasurement of the double-differential high-mass Drell-Yan cross section in pp collisions at \( \sqrt{s}=8 \) TeV with the ATLAS detector
This paper presents a measurement of the double-differential cross section for the Drell-Yan Z/γ ∗ → ℓ + ℓ ...
-
Article
Open AccessMeasurements of the Higgs boson production and decay rates and constraints on its couplings from a combined ATLAS and CMS analysis of the LHC pp collision data at \( \sqrt{s}=7 \) and 8 TeV
Combined ATLAS and CMS measurements of the Higgs boson production and decay rates, as well as constraints on its couplings to vector bosons and fermions, are presented. The combination is based on the analysis...
-
Article
Open AccessMeasurement of the angular coefficients in Z-boson events using electron and muon pairs from data taken at \( \sqrt{s}=8 \) TeV with the ATLAS detector
The angular distributions of Drell-Yan charged lepton pairs in the vicinity of the Z-boson mass peak probe the underlying QCD dynamics of Z-boson production. This paper presents a measurement of the complete set ...
