Browsing Department of Physics and Technology by Title
Now showing items 1107-1126 of 2292
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Measurement of the production cross section of pairs of isolated photons in pp collisions at 13 TeV with the ATLAS detector
(Journal article; Peer reviewed, 2021)A measurement of prompt photon-pair production in proton-proton collisions at √s = 13 TeV is presented. The data were recorded by the ATLAS detector at the LHC with an integrated luminosity of 139 fb−1. Events with two ... -
Measurement of the production cross section of prompt J/ψ mesons in association with a W± boson in pp collisions at √s = 7 TeV with the ATLAS detector
(Peer reviewed; Journal article, 2014-04)The process pp → W ± J/ψ provides a powerful probe of the production mechanism of charmonium in hadronic collisions, and is also sensitive to multiple parton interactions in the colliding protons. Using the 2011 ATLAS ... -
Measurement of the production cross section of prompt Ξ0 c baryons at midrapidity in pp collisions at √s = 5.02 TeV
(Journal article; Peer reviewed, 2021)The transverse momentum (pT) differential cross section of the charm-strange baryon Ξ0c is measured at midrapidity (|y| < 0.5) via its semileptonic decay into e+Ξ−νe in pp collisions at s√ = 5.02 TeV with the ALICE detector ... -
Measurement of the production cross section of three isolated photons in pp collisions at √s = 8 TeV using the ATLAS detector
(Peer reviewed; Journal article, 2018-03-23)A measurement of the production of three isolated photons in proton–proton collisions at a centre-of-mass energy TeV is reported. The results are based on an integrated luminosity of 20.2 fb−1 collected with the ATLAS ... -
Measurement of the production cross-section of a single top quark in association with a Z boson in proton–proton collisions at 13 TeV with the ATLAS detector
(Peer reviewed; Journal article, 2018-03-14)The production of a top quark in association with a Z boson is investigated. The proton–proton collision data collected by the ATLAS experiment at the LHC in 2015 and 2016 at a centre-of-mass energy of are used, corresponding ... -
Measurement of the production cross-section of ψ(2S) → J/ψ(→μ+μ−)π+π− in pp collisions at √s = 7 TeV at ATLAS
(Peer reviewed; Journal article, 2014-09-12)The prompt and non-prompt production cross-sections for ψ(2S) mesons are measured using 2.1 fb−1 of pp collision data at a centre-of-mass energy of 7 TeV recorded by the ATLAS experiment at the LHC. The measurement exploits ... -
Measurement of the production of charm jets tagged with D0 mesons in pp collisions at √s = 7 TeV
(Peer reviewed; Journal article, 2019-08-23)The production of charm jets in proton-proton collisions at a center-of-mass energy of s√=7 TeV was measured with the ALICE detector at the CERN Large Hadron Collider. The measurement is based on a data sample corresponding ... -
Measurement of the production of high-\(p_{\rm T}\) electrons from heavy-flavour hadron decays in Pb–Pb collisions at \(\sqrt{s_{\rm NN}}=2.76\) TeV
(Peer reviewed; Journal article, 2017-08)Electrons from heavy-flavour hadron decays (charm and beauty) were measured with the ALICE detector in Pb–Pb collisions at a centre-of-mass of energy \(\sqrt{s_{\rm NN}}=2.76\) TeV. The transverse momentum \(p_{\rm T}\) ... -
Measurement of the prompt \(J/\psi\) pair production cross-section in pp collisions at \(\sqrt{s} = 8\) TeV with the ATLAS detector
(Peer reviewed; Journal article, 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 ... -
Measurement of the ratio of cross sections for inclusive isolated-photon production in pp collisions at √s= 13 and 8 TeV with the ATLAS detector
(Peer reviewed; Journal article, 2019-04-12)The ratio of the cross sections for inclusive isolated-photon production in pp collisions at centre-of-mass energies of 13 and 8 TeV is measured using the ATLAS detector at the LHC. The integrated luminosities of the 13 ... -
A measurement of the ratio of the production cross sections for W and Z bosons in association with jets with the ATLAS detector
(Peer reviewed; Journal article, 2014-12-02)The ratio of the production cross sections for W and Z bosons in association with jets has been measured in proton–proton collisions at s√=7TeV with the ATLAS experiment at the Large Hadron Collider. The measurement is ... -
Measurement of the relative branching fraction B(B_s ^0 → ψ(2S)φ)/B( B_s^0→ J/ψφ ) with the ATLAS experiment at √s = 13 TeV.
(Master thesis, 2018-06-23)In this thesis we present the result of the relative branching fraction of the two hadronic B_s ^0 modes B_s ^0 → ψ(2S)φ and B_s ^0 → J/ψφ. In order to guarantee identical topologies we only look at the modes where J/ψ → ... -
Measurement of the relative B±c/B± production cross section with the ATLAS detector at √s=8 TeV
(Journal article; Peer reviewed, 2021)The total cross section and differential cross sections for the production of B±c mesons, times their branching fraction to J/ψπ±, are measured relative to those for the production of B± mesons, times their branching ... -
Measurement of the soft-drop jet mass in pp collisions at √s=13 TeV with the ATLAS detector
(Peer reviewed; Journal article, 2018-08)Jet substructure observables have significantly extended the search program for physics beyond the standard model at the Large Hadron Collider. The state-of-the-art tools have been motivated by theoretical calculations, ... -
Measurement of the suppression and azimuthal anisotropy of muons from heavy-flavor decays in Pb+Pb collisions at √sNN=2.76 TeV with the ATLAS detector
(Peer reviewed; Journal article, 2018-10)ATLAS measurements of the production of muons from heavy-flavor decays in √sNN=2.76 TeV Pb+Pb collisions and √s=2.76 TeV pp collisions at the LHC are presented. Integrated luminosities ... -
Measurement of the t(Formula Presented.) production cross-section as a function of jet multiplicity and jet transverse momentum in 7 TeV proton-proton collisions with the ATLAS detector
(Peer reviewed; Journal article, 2015-01-08)The tt⎯⎯ production cross-section dependence on jet multiplicity and jet transverse momentum is reported for proton-proton collisions at a centre-of-mass energy of 7 TeV in the single-lepton channel. The data were collected ... -
Measurement of the top quark mass in the \(t\bar t \to {\rm lepton+jets}\) and \(t\bar t \to {\rm dilepton}\) channels using \(\sqrt{s}=7\) TeV ATLAS data
(Peer reviewed; Journal article, 2015-07)The top quark mass was measured in the channels \(t\bar{t} \to \mathrm{lepton+jets}\) and \(t\bar{t} \to \mathrm{dilepton}\) (lepton=\(e, \mu\)) based on ATLAS data recorded in 2011. The data were taken at the LHC with a ... -
Measurement of the top quark mass in the tt¯→lepton+jets channel from √s=8 TeV ATLAS data and combination with previous results
(Peer reviewed; Journal article, 2019)The top quark mass is measured using a template method in the tt¯→lepton+jets channel (lepton is e or μ) using ATLAS data recorded in 2012 at the LHC. The data were taken at a proton–proton centre-of-mass energy of s√=8 ... -
Measurement of the top quark pair production charge asymmetry in proton-proton collisions at √s = 7 TeV using the ATLAS detector
(Peer reviewed; Journal article, 2014-02)This paper presents a measurement of the top quark pair ( tt¯ ) production charge asymmetry A C using 4.7 fb−1 of proton-proton collisions at a centre-of-mass energy s√ = 7 TeV collected by the ATLAS detector at the LHC. ... -
Measurement of the top-quark mass in the fully hadronic decay channel from ATLAS data at \(\sqrt{s}=7\) TeV
(Peer reviewed; Journal article, 2015-04-23)The mass of the top quark is measured in a data set corresponding to 4.6 fb\(^{−1}\) of proton--proton collisions with centre-of-mass energy \(\sqrt{s}=7\) TeV collected by the ATLAS detector at the LHC. Events consistent ...