The results of a search for new heavy W′ bosons decaying to an electron or muon and a neutrino using proton–proton collision data at a centre-of-mass energy of √s=13 TeV are presented. The dataset was collected in 2015 and ...

A search for heavy Majorana neutrinos in events containing a pair of high-p{T} leptons of the same charge and high-p{T} jets is presented. The search uses 20.3 fb⁻¹ of pp collision data collected with the ATLAS detector ...

A search for the Standard Model Higgs boson produced in association with a top-quark pair, tt̅H , is presented. The analysis uses 20.3 fb⁻¹ of pp collision data at √s̅ = TeV, collected with the ATLAS detector at the Large ...

Measurements of spin correlation in top quark pair production are presented using data collected with the ATLAS detector at the LHC with proton-proton collisions at a center-of-mass energy of 7 TeV, corresponding to an ...

This paper presents measurements of tt¯ production in association with additional b-jets in pp collisions at the LHC at a centre-of-mass energy of 13 TeV. The data were recorded with the ATLAS detector and correspond to ...

This Letter presents a search for a heavy neutral particle decaying into an opposite-sign different-flavor dilepton pair, e^{±}μ^{∓}, e^{±}τ^{∓}, or μ^{±}τ^{∓} using 20.3 fb⁻¹ of pp collision data at √s̅ = 8  TeV collected ...

The distribution of particles inside hadronic jets produced in the decay of boosted W and Z bosons can be used to discriminate such jets from the continuum background. Given that a jet has been identified as likely resulting ...

A search for vector-like quarks and excited quarks in events containing a top quark and a W boson in the final state is reported here. The search is based on 20.3 fb⁻¹ of proton-proton collision data taken at the LHC at a ...

A search is presented for the direct pair production of the stop, the supersymmetric partner of the top quark, that decays through an R-parity-violating coupling to a final state with two leptons and two jets, at least one ...

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 √s = 13 TeV are used, ...