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This article documents the performance of the ATLAS muon identification and reconstruction using the LHC dataset recorded at √ s = 13 TeV in 2015. Using a large sample of J/ψ → μμ and Z → μμ decays from 3.2 fb −1 of pp collision data, measurements of the reconstruction efficiency , as well as of the momentum scale and resolution, are presented and compared(More)
Search for direct top squark pair production in final states with two tau leptons in pp collisions at √ s = 8 TeV with the ATLAS detector Abstract A search for direct pair production of the super-symmetric partner of the top quark, decaying via a scalar tau to a nearly massless gravitino, has been performed using 20 fb −1 of proton–proton collision data at(More)
Search for Higgs boson pair production in the b ¯ bb ¯ b final state from pp collisions at √ s = 8 TeVwith the ATLAS detector Abstract A search for Higgs boson pair production pp → hh is performed with 19.5 fb −1 of proton–proton collision data at √ s = 8 TeV, which were recorded by the ATLAS detector at the Large Hadron Collider in 2012. The decay products(More)
Searches for pair-produced scalar leptoquarks are performed using 20 fb −1 of proton–proton collision data provided by the LHC and recorded by the ATLAS detector at √ s = 8 TeV. Events with two electrons (muons) and two or more jets in the final state are used to search for first (second)-generation leptoquarks. The results from two previously published(More)
The results of a search for gluinos in final states with an isolated electron or muon, multiple jets and large missing transverse momentum using proton–proton collision data at a centre-of-mass energy of √ s = 13 TeV are presented. The dataset used was recorded in 2015 by the ATLAS experiment at the Large Hadron Collider and corresponds to an integrated(More)
ATLAS has measured two-particle correlations as a function of the relative azimuthal angle, Δϕ, and pseudorapidity, Δη, in sqrt[s]=13 and 2.76 TeV pp collisions at the LHC using charged particles measured in the pseudorapidity interval |η|<2.5. The correlation functions evaluated in different intervals of measured charged-particle multiplicity show a(More)
A search has been made for supersymmetry in a final state containing two photons and missing transverse momentum using the ATLAS detector at the Large Hadron Collider. The search makes use of 3.2 fb −1 of proton-proton collision data collected at a centre-of-mass energy of 13 TeV in 2015. Using a combination of data-driven and Monte-Carlo-based approaches,(More)
The reconstruction of the signal from hadrons and jets emerging from the proton-proton collisions at the Large Hadron Collider (LHC) and entering the ATLAS calorimeters is based on a three-dimensional topological clustering of individual calorimeter cell signals. The cluster formation follows cell signal-significance patterns generated by electromagnetic(More)