Search
Now showing items 1-10 of 52
Search for Dark Matter in Events With Heavy Quarks and Missing Transverse Momentum in pp Collisions With the ATLAS Detector
(Springer Nature, 2015)
This article reports on a search for dark matter pair production in association with bottom or top quarks in 20.3 fb−1 of pp collisions collected at s√=8 TeV by the ATLAS detector at the LHC. Events with large missing ...
Performance of the ATLAS Muon Trigger in pp Collisions at √s=8 TeV
(Springer Nature, 2015)
The performance of the ATLAS muon trigger system is evaluated with proton-proton collision data collected in 2012 at the Large Hadron Collider at a centre-of-mass energy of 8 TeV. It is primarily evaluated using events ...
Observation and measurements of the production of prompt and non-prompt J/ψ mesons in association with a Z boson in pp collisions at √s=8 TeV with the ATLAS detector
(Springer Nature, 2015)
The production of a Z boson in association with a J/ψ meson in proton-proton collisions probes the production mechanisms of quarkonium and heavy flavour in association with vector bosons, and allows studies of multiple ...
Search for Direct Pair Production of a Chargino and a Neutralino Decaying to the 125 GeV Higgs Boson in √s= 8 TeV Pp Collisions With the ATLAS Detector
(Springer Nature, 2015)
A search is presented for the direct pair production of a chargino and a neutralino pp→χ̃ ±1χ̃ 02, where the chargino decays to the lightest neutralino and the W boson, χ̃ ±1→χ̃ 01(W±→ℓ±ν), while the neutralino decays to ...
Search for the Standard Model Higgs boson produced in association with top quarks and decaying into bb¯ in pp collisions at s√ = 8 TeV with the ATLAS detector
(Springer Nature, 2015)
A search for the Standard Model Higgs boson produced in association with a pair of top quarks, tt¯H, is presented. The analysis uses 20.3 fb−1 of pp collision data at s√ = 8 TeV, collected with the ATLAS detector at the ...
Search for W′→tb→qqbb decays in pp collisions at √s = 8 TeV with the ATLAS detector
(Springer Nature, 2015)
A search for a massive W′ gauge boson decaying to a top quark and a bottom quark is performed with the ATLAS detector in pp collisions at the LHC. The dataset was taken at a centre-of-mass energy of √s = 8 TeV and corresponds ...
Search for Production of WW/WZ Resonances Decaying to a Lepton, Neutrino and Jets in Pp Collisions at S√ = 8 TeV With the ATLAS Detector
(Springer Nature, 2015)
A search is presented for narrow diboson resonances decaying to WW or WZ in the final state where one W boson decays leptonically (to an electron or a muon plus a neutrino) and the other W/Z boson decays hadronically. The ...
Measurement of the branching ratio Γ(Λ0b→ψ(2S)Λ0)/Γ(Λ0b→J/ψΛ0) with the ATLAS detector
(Elsevier BV, 2015)
An observation of the Λ0b→ψ(2S)Λ0 decay and a comparison of its branching fraction with that of the Λ0b→J/ψΛ0 decay has been made with the ATLAS detector in proton--proton collisions at s√=8TeV at the LHC using an integrated ...
Measurement of transverse energy-energy correlations in multi-jet events in pp collisions at s√=7 TeV using the ATLAS detector and determination of the strong coupling constant αs(mZ)
(Elsevier BV, 2015)
High transverse momentum jets produced in pp collisions at a centre of mass energy of 7 TeV are used to measure the transverse energy-energy correlation function and its associated azimuthal asymmetry. The data were recorded ...
Determination of the ratio of b-quark fragmentation fractions fs/fd in pp collisions at s√=7 TeV with the ATLAS detector
(American Physical Society (APS), 2015)
With an integrated luminosity of 2.47 fb−1 recorded by the ATLAS experiment at the LHC, the exclusive decays B0s→J/ψϕ and B0d→J/ψK∗0 of B mesons produced in pp collisions at s√=7 TeV are used to determine the ratio of ...