Search
Now showing items 21-30 of 199
Search for Invisible Particles Produced in Association with Single-Top-Quarks in Proton-Proton Collisions at √s = 8 TeV with the ATLAS Detector
(EDP Sciences, 2015-02-18)
A search for the production of single-top-quarks in association with missing energy is performed in proton–proton collisions at a centre-of-mass energy of √s = 8 Tev with the ATLAS experiment at the large hadron collider ...
Search for Higgs Boson Pair Production in the bb̅bb̅ Final State from pp Collisions at √s̅ = 8 TeV with the ATLAS Detector
(Springer, 2015-09-09)
A search for Higgs boson pair production pp → hh is performed with 19.5 fb⁻¹ of proton-proton collision data at √s̅ = 8 TeV, which were recorded by the ATLAS detector at the Large Hadron Collider in 2012. The decay products ...
Search for New Phenomena in the Dijet Mass Distribution Using PP Collision Data at √s = 8 TeV with the ATLAS Detector
(Amer Physical Soc, 2015-03-01)
Dijet events produced in LHC proton-proton collisions at a center-of-mass energy √s = 8 TeV are studied with the ATLAS detector using the full 2012 data set, with an integrated luminosity of 20.3 fb⁻¹. Dijet masses up to ...
Measurement of the Parity-Violating Asymmetry Parameter α_b and the Helicity Amplitudes for the Decay Λ_b^0 → J/ψΛ⁰ with the ATLAS Detector
(American Physical Society, 2014-05-27)
A measurement of the parity-violating decay asymmetry parameter, α_b, and the helicity amplitudes for the decay Λ_b^0 → J/ψ(μ⁺μ⁻)Λ⁰(pπ⁻) is reported. The analysis is based on 1400 Λ_b^0 and Λ̅_b^0 baryons selected in 4.6 ...
Search for Single Production of a Vector-Like Quark via a Heavy Gluon in the 4b Final State with the ATLAS Detector in pp Collisions at √s̅ = 8 TeV
(Elsevier, 2016-05-03)
A search is performed for the process pp → G* → B_{H}b̅ / B̅_{H}b → Hbb̅ → bb̅bb̅ predicted in composite Higgs scenarios, where G* is a heavy colour octet vector resonance and B_{H} a vector-like quark of charge -1/3. The ...
High-E_T Isolated-Photon Plus Jets Production in pp Collisions at √s̅ = 8 TeV with the ATLAS Detector
(Springer New York LLC, 2018-05-15)
Detailed measurements of t-channel single top-quark production are presented. They use 20.2 fb⁻¹ of data collected by the ATLAS experiment in proton–proton collisions at a centre-of-mass energy of 8 TeV at the LHC. Total, ...
Measurement of the Transverse Polarization of Λ and Λ̅ Hyperons Produced in Proton-Proton Collisions at √s = 7 TeV using the ATLAS Detector
(Amer Physical Soc, 2015-02-10)
The transverse polarization of Λ and Λ̅ hyperons produced in proton-proton collisions at a center-of-mass energy of 7 TeV is measured. The analysis uses 760 μb⁻¹ of minimum bias data collected by the ATLAS detector at the ...
Measurements of Charge and CP Asymmetries in B-Hadron Decays Using Top-Quark Events Collected by the ATLAS Detector in PP Collisions at √s̅ = 8 TeV
(Springer Verlag, 2017-02-14)
Same- and opposite-sign charge asymmetries are measured in lepton+jets tt̅ events in which a b-hadron decays semileptonically to a soft muon, using data corresponding to an integrated luminosity of 20.3 fb⁻¹ from proton-proton ...
Measurement of the Higgs Boson Mass from the H → γγ and H → ZZ* → 4ℓ Channels in pp Collisions at Center-Of-Mass Energies of 7 and 8 TeV with the ATLAS Detector
(American Physical Society, 2014-09-09)
An improved measurement of the mass of the Higgs boson is derived from a combined fit to the reconstructed invariant mass spectra of the decay channels H → γγ and H → ZZ∗ → 4ℓ. The analysis uses the pp collision data sample ...
Search for the Production of Single Vector-Like and Excited Quarks in the Wt Final State in pp Collisions at √s̅ = 8 TeV with the ATLAS Detector
(Springer Verlag, 2016-02-17)
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 ...