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Measurements of Top Quark Spin Observables in tt̅ Events Using Dilepton Final States in √s = 8 TeV PP Collisions with the ATLAS Detector
(Springer Verlag, 2018-09-12)
Measurements of top quark spin observables in tt¯ events are presented based on 20.2 fb−1 of s=8 TeV proton-proton collisions recorded with the ATLAS detector at the LHC. The analysis is performed in the dilepton final ...
Combination of Inclusive and Differential tt̅ Charge Asymmetry Measurements Using ATLAS and CMS Data at √s =7 and 8 TeV
This paper presents combinations of inclusive and differential measurements of the charge asymmetry (AC) in top quark pair (tt̅) events with a lepton + jets signature by the ATLAS and CMS Collaborations, using data from ...
Measurement of Jet Fragmentation in Pb+Pb and pp Collisions at √{snn} =5.02 TeV with the ATLAS Detector
This paper presents a measurement of jet fragmentation functions in 0.49 nb⁻¹ of Pb+Pb collisions and 25 pb⁻¹ of pp collisions at √{sNN}=5.02 TeV collected in 2015 with the ATLAS detector at the LHC. These measurements ...
Measurement of the Soft-Drop Jet Mass in pp Collisions at √s =13 TeV with the ATLAS Detector
Jet substructure observables have significantly extended the search program for physics beyond the standard model at the Large Hadron Collider. The state-of-the-art tools have been motivated by theoretical calculations, ...
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
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 Top-Squark Pair Production in Final States with One Lepton, Jets, and Missing Transverse Momentum Using 36 fb⁻¹ of √s=13 TeV pp Collision Data with the ATLAS Detector
The results of a search for the direct pair production of top squarks, the supersymmetric partner of the top quark, in final states with one isolated electron or muon, several energetic jets, and missing transverse momentum ...
Search for a Structure in the B{{_s}{^0}} Π^± Invariant Mass Spectrum with the ATLAS Experiment
A search for the narrow structure, X(5568), reported by the DO Collaboration in the decay sequence X → B{{_s}{^0}} π^±, B{{_s}{^0}} → J/ψφ, is presented. The analysis is based on a data sample recorded with the ATLAS ...
Search for Supersymmetry in Events with Four or More Leptons in √s =13 TeV pp Collisions with ATLAS
Results from a search for supersymmetry in events with four or more charged leptons (electrons, muons and taus) are presented. The analysis uses a data sample corresponding to 36.1 fb-1 of proton-proton collisions delivered ...
Search for Squarks and Gluinos in Final States with Jets and Missing Transverse Momentum Using 36 Fb⁻¹ of √s =13 TeV pp Collision Data with the ATLAS Detector
A search for the supersymmetric partners of quarks and gluons (squarks and gluinos) in final states containing hadronic jets and missing transverse momentum, but no electrons or muons, is presented. The data used in this ...
Search for Supersymmetry in Final States with Missing Transverse Momentum and Multiple B-Jets in Proton-Proton Collisions at √s=13 TeV with the ATLAS Detector
A search for supersymmetry involving the pair production of gluinos decaying via third-generation squarks into the lightest neutralino (χ{_1^{˜0}}) is reported. It uses LHC proton-proton collision data at a centre-of-mass ...