Now showing items 1-20 of 20

• #### Evidence for electroweak production of W±W±jj in pp collisions at √s =8 TeV with the ATLAS detector ﻿

(Peer reviewed; Journal article, 2014-10-03)
This Letter presents the first study of W±W±jj, same-electric-charge diboson production in association with two jets, using 20.3  fb−1 of proton-proton collision data at s√=8  TeV recorded by the ATLAS detector at the Large ...
• #### Evidence for the associated production of the Higgs boson and a top quark pair with the ATLAS detector ﻿

(Peer reviewed; Journal article, 2018-04-09)
A search for the associated production of the Higgs boson with a top quark pair (t¯tH) is reported. The search is performed in multilepton final states using a data set corresponding to an integrated luminosity of 36.1  fb−1 ...
• #### Measurement of colour flow using jet-pull observables in tt¯events with the ATLAS experiment at √s=13 TeV ﻿

(Peer reviewed; Journal article, 2018-10)
Previous studies have shown that weighted angular moments derived from jet constituents encode the colour connections between partons that seed the jets. This paper presents measurements of two such distributions, the ...
• #### 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 Higgs boson mass in the H → ZZ⁎ → 4ℓ and H → γγ channels with √s = 13 TeV pp collisions using the ATLAS detector ﻿

(Peer reviewed; Journal article, 2018-09-10)
The mass of the Higgs boson is measured in the H → Z Z∗ → 4 and in the H → γγ decay channels with 36.1 fb−1 of proton–proton collision data from the Large Hadron Collider at a centre-of-mass energy of 13 TeV recorded by ...
• #### 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 parity-violating asymmetry parameter αb and the helicity amplitudes for the decay Λb0 →J /ψ Λ0 with the ATLAS detector ﻿

(Peer reviewed; Journal article, 2014-05-27)
A measurement of the parity-violating decay asymmetry parameter, αb, and the helicity amplitudes for the decay Λ0b→J/ψ(μ+μ−)Λ0(pπ−) is reported. The analysis is based on 1400 Λ0b and Λ¯0b baryons selected in 4.6  fb−1 of ...
• #### 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. ...
• #### Search for a heavy Higgs boson decaying into a Z boson and another heavy Higgs boson in the ℓℓbb final state in pp collisions at √s=13 TeV with the ATLAS detector ﻿

(Peer reviewed; Journal article, 2018-08-10)
A search for a heavy neutral Higgs boson, A, decaying into a Z boson and another heavy Higgs boson, H, is performed using a data sample corresponding to an integrated luminosity of 36.1 fb−1 from proton– proton collisions ...
• #### Search for dark matter in events with a Z boson and missing transverse momentum in pp collisions at √s = 8TeV with the ATLAS detector ﻿

(Peer reviewed; Journal article, 2014-07-10)
A search is presented for production of dark-matter particles recoiling against a leptonically decaying Z boson in 20.3  fb⎻¹ of pp collisions at s√=8  TeV with the ATLAS detector at the Large Hadron Collider. Events with ...
• #### Search for flavour-changing neutral current top-quark decays t → qZ in proton-proton collisions at √s=13 TeV with the ATLAS detector ﻿

(Peer reviewed; Journal article, 2018-07-31)
A search for flavour-changing neutral-current processes in top-quark decays is presented. Data collected with the ATLAS detector from proton-proton collisions at the Large Hadron Collider at a centre-of-mass energy of ...
• #### Search for high-mass dilepton resonances in $pp$ collisions at $\sqrt {s}$ = 8 TeV with the ATLAS detector ﻿

(Peer reviewed; Journal article, 2014-09)
The ATLAS detector at the Large Hadron Collider is used to search for high-mass resonances decaying to dielectron or dimuon final states. Results are presented from an analysis of proton--proton $pp$ collisions at a ...
• #### Search for low-mass dijet resonances using trigger-level jets with the ATLAS detector in pp collisions at √s=13  TeV ﻿

(Peer reviewed; Journal article, 2018-08)
Searches for dijet resonances with sub-TeV masses using the ATLAS detector at the Large Hadron Collider can be statistically limited by the bandwidth available to inclusive single-jet triggers, whose data-collection rates ...
• #### Search for new phenomena using the invariant mass distribution of same-flavour opposite-sign dilepton pairs in events with missing transverse momentum in √s=13 TeV pp collisions with the ATLAS detector ﻿

(Peer reviewed; Journal article, 2018-08)
Supersymmetry (SUSY) [1, 2, 3, 4, 5, 6] is an extension to the Standard Model (SM) that introduces partner particles (called sparticles), which differ by half a unit of spin from their SM counterparts. For models with ...
• #### Search for pair production of Higgsinos in final states with at least three b-tagged jets in √s=13  TeV pp collisions using the ATLAS detector ﻿

(Peer reviewed; Journal article, 2018-11)
A search for pair production of the supersymmetric partners of the Higgs boson (higgsinos&nbsp;&tilde;H) in gauge-mediated scenarios is reported. Each higgsino is assumed to decay to a Higgs boson and a gravitino. Two ...
• #### Search for pair production of up-type vector-like quarks and for four-top-quark events in final states with multiple b-jets with the ATLAS detector ﻿

(Peer reviewed; Journal article, 2018-07-12)
A search for pair production of up-type vector-like quarks (T ) with a significant branching ratio into a top quark and either a Standard Model Higgs boson or a Z boson is presented. The same analysis is also used to search ...
• #### Search for pair-produced third-generation squarks decaying via charm quarks or in compressed supersymmetric scenarios in $pp$ collisions at $\sqrt{s}=8$ TeV with the ATLAS detector ﻿

(Peer reviewed; Journal article, 2014-09)
Results of a search for supersymmetry via direct production of third-generation squarks are reported, using $20.3$ fb\).{-1}\) of proton-proton collision data at $\sqrt{s}$.8 TeV recorded by the ATLAS experiment at the ...
• #### Search for R-parity-violating supersymmetric particles in multi-jet final states produced in p–p collisions at √s = 13 TeV using the ATLAS detector at the LHC ﻿

(Peer reviewed; Journal article, 2018-11)
Results of a search for gluino pair production with subsequent R-parity-violating decays to quarks are presented. This search uses 36.1 fb−1 of data collected by the ATLAS detector in proton–proton collisions with a ...
• #### Search for the standard model Higgs boson produced in association with top quarks and decaying into a b¯b pair in pp collisions at √s=13  TeV with the ATLAS detector ﻿

(Peer reviewed; Journal article, 2018-04-30)
A search for the standard model Higgs boson produced in association with a top-quark pair, t¯tH, is presented. The analysis uses 36.1  fb−1 of pp collision data at √s=13  TeV collected with the ATLAS detector at the Large ...
• #### Search for top squarks decaying to tau sleptons in pp collisions at √s=13  TeV with the ATLAS detector ﻿

(Peer reviewed; Journal article, 2018-08)
A search for direct pair production of top squarks in final states with two tau leptons,&nbsp;b-jets, and missing transverse momentum is presented. The analysis is based on proton-proton collision data at&nbsp;&radic;s=1 ...