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Now showing items 1-10 of 418
Measurement of Jet Fragmentation in Pb+Pb and pp Collisions at √{S_{NN}} = 2.76 TeV with the ATLAS Detector at the LHC
This paper describes the implementation and performance of a particle flow algorithm applied to 20.2 fb⁻¹ of ATLAS data from 8 TeV proton–proton collisions in Run 1 of the LHC. The algorithm removes calorimeter energy ...
Search for a New Heavy Gauge-Boson Resonance Decaying into a Lepton and Missing Transverse Momentum in 36 fb⁻¹ of pp Collisions at √s=13 TeV with the ATLAS Experiment
(Springer New York LLC, 2018-11-05)
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 ...
Measurement of the Top Quark Pair Production Charge Asymmetry in Proton-Proton Collisions at √s̅ = 7 TeV Using the ATLAS Detector
(Springer, 2014-02-25)
This paper presents a measurement of the top quark pair (tt̅) production charge asymmetry A_C using 4.7 fb−1 of proton-proton collisions at a centre-of-mass energy √s̅ = 7 TeV collected by the ATLAS detector at the LHC. A ...
Precision Measurement of the B→X_sγ Photon Energy Spectrum, Branching Fraction, and Direct CP Asymmetry A_{CP}(B→X_{s+d}γ)
(American Physical Society, 2012-11-09)
The photon spectrum in the inclusive electromagnetic radiative decays of the B meson, B→X_sγ plus B→X_dγ, is studied using a data sample of (382.8 ± 4.2)×10⁶Υ(4S) →BB̄ decays collected by the BABAR experiment at SLAC. ...
Properties of g → bb̅ at Small Opening Angles in pp Collisions with the ATLAS Detector at √s =13 TeV
The fragmentation of high-energy gluons at small opening angles is largely unconstrained by present measurements. Gluon splitting to b-quark pairs is a unique probe into the properties of gluon fragmentation because ...
Measurement of Distributions Sensitive to the Underlying Event in Inclusive Z-Boson Production in pp Collisions at √s = 7 TeV with the ATLAS Detector
(Springer New York LLC, 2014-12-10)
A measurement of charged-particle distributions sensitive to the properties of the underlying event is presented for an inclusive sample of events containing a Z-boson, decaying to an electron or muon pair. The measurement ...
Studies of Zγ Production in Association with a High-Mass Dijet System in pp Collisions at √s̅ = 8 TeV with the ATLAS Detector
(American Physical Society, 2018-05-15)
Dijet events are studied in the proton-proton collision data set recorded at √s̅ = 13 TeV with the ATLAS detector at the Large Hadron Collider in 2015 and 2016, corresponding to integrated luminosities of 3.5 fb⁻¹ and 33.5 ...
Performance of the ATLAS Trigger System in 2015
(Springer New York LLC, 2018-05-15)
This article presents measurements of tt̅ differential cross-sections in a fiducial phase-space region, using an integrated luminosity of 3.2 fb⁻¹ of proton–proton data at a centre-of-mass energy of √s̅ = 13 TeV recorded ...
Search for Heavy Majorana Neutrinos with the ATLAS Detector in pp Collisions at √s̅ = 8 TeV
(Springer, 2015-07-29)
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 ...
Search for B⁺→ K⁺τ⁺τ⁻ at the Babar Experiment
(American Physical Society, 2018-08-24)
We search for the rare flavor-changing neutral current process B⁺→ K⁺τ⁺τ⁻ using data from the BABAR experiment. The data sample, collected at the center-of-mass energy of the Υ(4S) resonance, corresponds to a total integrated ...