Blar i Department of Physics and Technology på emneord "Hadron-Hadron Scattering"
Viser treff 1-20 av 45
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ATLAS search for new phenomena in dijet mass and angular distributions using pp collisions at \(\sqrt{s}\)=7 TeV
(Peer reviewed; Journal article, 2013-01)Mass and angular distributions of dijets produced in LHC proton-proton collisions at a centre-of-mass energy \(\sqrt{s}\)=7 TeV have been studied with the ATLAS detector using the full 2011 data set with an integrated ... -
Coherent \(\rho^0\) photoproduction in ultra-peripheral Pb-Pb collisions at \(\mathbf{\sqrt{\textit{s}_{\rm NN}}} = 2.76\) TeV
(Peer reviewed; Journal article, 2015-09)We report the first measurement at the LHC of coherent photoproduction of \(\rho^0\) mesons in ultra-peripheral Pb-Pb collisions. The invariant mass and transverse momentum distributions for \(\rho^0\) production are studied ... -
Evidence for the Higgs-boson Yukawa coupling to tau leptons with the ATLAS detector
(Peer reviewed; Journal article, 2015-04-21)Results of a search for \(H \to \tau \tau\) decays are presented, based on the full set of proton--proton collision data recorded by the ATLAS experiment at the LHC during 2011 and 2012. The data correspond to integrated ... -
Forward-backward multiplicity correlations in pp collisions at √s = 0.9, 2.76 and 7 TeV
(Peer reviewed; Journal article, 2015-05-20)The strength of forward-backward (FB) multiplicity correlations is measured by the ALICE detector in proton-proton (pp) collisions at s√ = 0.9, 2.76 and 7 TeV. The measurement is performed in the central pseudorapidity ... -
Higher harmonic flow coefficients of identified hadrons in Pb-Pb collisions at \(\sqrt{s_{\rm NN}}\) = 2.76 TeV
(Peer reviewed; Journal article, 2016-09)The elliptic, triangular, quadrangular and pentagonal anisotropic flow coefficients for \(\pi^{\pm}\). \(\mathrm{K}^{\pm}\) and p+\).overline{\mathrm{p}}\) in Pb-Pb collisions at \(\sqrt{s_\mathrm{{NN}}} = 2.76\) TeV were ... -
Inclusive, prompt and non-prompt J/ψ production at mid-rapidity in Pb-Pb collisions at √sNN = 2.76 TeV
(Peer reviewed; Journal article, 2015-07-10)The transverse momentum (p T) dependence of the nuclear modification factor R AA and the centrality dependence of the average transverse momentum 〈p T〉 for inclusive J/ψ have been measured with ALICE for Pb-Pb collisions ... -
Measurement of charm and beauty production at central rapidity versus charged-particle multiplicity in proton-proton collisions at \(\sqrt{s}\) = 7 TeV
(Peer reviewed; Journal article, 2015-09)Prompt D meson and non-prompt J/\(\psi\) yields are studied as a function of the multiplicity of charged particles produced in inelastic proton-proton collisions at a centre-of-mass energy of \(\sqrt{s}=7\) TeV. The results ... -
Measurement of dijet production with a veto on additional central jet activity in pp collisions at ps = 7TeV using the ATLAS detector
(Peer reviewed; Journal article, 2011-09-12)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 20GeV is found between the two boundary jets. The fraction of ... -
Measurement of isolated-photon pair production in pp collisions at root s=7 TeV with the ATLAS detector
(Peer reviewed; Journal article, 2013-01-11)The ATLAS experiment at the LHC has measured the production cross section of events with two isolated photons in the final state, in proton-proton collisions at s√=7TeV. The full data set collected in 2011, corresponding ... -
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 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 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 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 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 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 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 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 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 W and Z production in proton-proton collisions at p s = 7 TeV with the ATLAS detector
(Peer reviewed; Journal article, 2011-09-14)We present studies of W and Z bosons with associated high energy photons produced in pp collisions at s=7 TeV. The analysis uses 35 pb−1 of data collected by the ATLAS experiment in 2010. The event selection requires W and ...