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Ioannis Gkialas

Researcher at National and Kapodistrian University of Athens

Publications -  268
Citations -  20749

Ioannis Gkialas is an academic researcher from National and Kapodistrian University of Athens. The author has contributed to research in topics: Large Hadron Collider & Lepton. The author has an hindex of 70, co-authored 268 publications receiving 16867 citations. Previous affiliations of Ioannis Gkialas include University of the Aegean & Federal University of Rio de Janeiro.

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Evidence for the spin-0 nature of the Higgs boson using ATLAS data

Georges Aad, +2945 more
- 04 Jul 2013 - 
TL;DR: In this paper, the spin and parity quantum numbers of the Higgs boson were studied based on the collision data collected by the ATLAS experiment at the LHC, and the results showed that the standard model spin-parity J(...
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Measurements of Higgs boson production and couplings in diboson final states with the ATLAS detector at the LHC

Georges Aad, +2945 more
- 04 Jul 2013 - 
TL;DR: In this article, the production properties and couplings of the recently discovered Higgs boson using the decays into boson pairs were measured using the complete pp collision data sample recorded by the ATLAS experiment at the CERN Large Hadron Collider at centre-of-mass energies of 7 TeV and 8 TeV, corresponding to an integrated luminosity of about 25/fb.
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Performance of the ATLAS trigger system in 2015

Morad Aaboud, +2848 more
- 18 May 2017 - 
TL;DR: This paper presents a short overview of the changes to the trigger and data acquisition systems during the first long shutdown of the LHC and shows the performance of the trigger system and its components based on the 2015 proton–proton collision data.
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Muon reconstruction performance of the ATLAS detector in proton–proton collision data at √ s =13 TeV

Georges Aad, +2831 more
- 23 May 2016 - 
TL;DR: In this article, the performance of the ATLAS muon identification and reconstruction using the first LHC dataset recorded at s√ = 13 TeV in 2015 was evaluated using the Monte Carlo simulations.
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Topological cell clustering in the ATLAS calorimeters and its performance in LHC Run 1

Georges Aad, +2891 more
- 24 Jul 2017 - 
TL;DR: Topological cell clustering is established as a well-performing calorimeter signal definition for jet and missing transverse momentum reconstruction in ATLAS and is exploited to apply a local energy calibration and corrections depending on the nature of the cluster.