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Julie Kirk

Researcher at Rutherford Appleton Laboratory

Publications -  1097
Citations -  84632

Julie Kirk is an academic researcher from Rutherford Appleton Laboratory. The author has contributed to research in topics: Large Hadron Collider & Higgs boson. The author has an hindex of 127, co-authored 983 publications receiving 77152 citations. Previous affiliations of Julie Kirk include West University of Timișoara & Science and Technology Facilities Council.

Papers
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Journal Article

Fluctuations of anisotropic flow in Pb+Pb collisions at $\sqrt{s_{\mathrm{NN}}}=5.02$ TeV with the ATLAS detector

Morad Aaboud, +2934 more
Journal ArticleDOI

An updated study of B meson oscillations using dilepton events

K. Ackerstaff, +354 more
TL;DR: In this paper, a study of B meson oscillations using hadronic Z(0) decays with two identified leptons was performed, and the decay times were reconstructed for each of the semileptonic B decays by forming vertices which include the lepton, and by estimating the b meson momentum.
Journal ArticleDOI

Measurements of $W$ and $Z$ boson production in $pp$ collisions at $\sqrt{s}=5.02$ TeV with the ATLAS detector

Morad Aaboud, +2917 more
TL;DR: In this paper, fiducial integrated and differential cross sections for W^+$, $W^-$ and Z boson production are reported based on collision data collected with the ATLAS detector at the CERN Large Hadron Collider.
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A measurement of the B-d(0) oscillation frequency using leptons and D*(+/-) mesons

Gideon Alexander, +353 more
TL;DR: In this paper, the OPAL detector data collected during 1990-1994 were used to measure the time dependence of mixing and a sample of 348 D*± candidates with a lepton in the opposite hemisphere were reconstructed, of which 167±25 are expected to be from B d 0 decays.

Measurement of the inclusive and dijet cross-sections of b-jets in pp collisions at √s = 7 TeV with the ATLAS detector

Georges Aad, +3001 more
Abstract: The inclusive and dijet production cross-sections have been measured for jets containing b-hadrons (b-jets) in proton–proton collisions at a centre-of-mass energy of √ s = 7 TeV, using the ATLAS detector at the LHC. The measurements use data corresponding to an integrated luminosity of 34 pb−1. The b-jets are identified using either a lifetime-based method, where secondary decay vertices of b-hadrons in jets are reconstructed using information from the tracking detectors, or a muon-based method where the presence of a muon is used to identify semileptonic decays of b-hadrons inside jets. The inclusive b-jet cross-section is measured as a function of transverse momentum in the range 20 < pT < 400 GeV and rapidity in the range |y| < 2.1. The bb-dijet cross-section is measured as a function of the dijet invariant mass in the range 110 < mjj < 760 GeV, the azimuthal angle difference between the two jets and the angular variable χ in two dijet mass regions. The results are compared with next-to-leading-order QCD predictions. Good agreement is observed between the measured crosssections and the predictions obtained using POWHEG + Pythia. MC@NLO + Herwig shows good agreement with the measured bb-dijet cross-section. However, it does not reproduce the measured inclusive cross-section well, particularly for central b-jets with large transverse momenta.