1,490 research outputs found
Measurements of underlying-event properties with the ATLAS detector
No full textA correct modelling of the underlying event in proton-proton collisions is important for the proper simulation of kinematic distributions of high-energy collisions. The ATLAS collaboration extended previous studies at 7 TeV with a leading track or jet or Z boson by a new study of Drell-Yan events in 1.1 /fb of data collected at a center-of-mass energy of 7TeV. In this new study the distributions of several topological event-shape variables based on charged particles are measured, both integrated and differential in the transverse momentum of the Drell-Yan lepton pair. These measurements are sensitive to the underlying-event as well as the onset of hard emissions. The results have been compared with the predictions of several state-of-the-art MC generators. The collaboration has also performed a first study of the number and transverse-momentum sum of charged particles as a function of pseudorapidity and azimuthal angle in a special data set taken with low beam currents at a center-of-mass energy of 13TeV. The results are compared to predictions of several MC generators
Searches for Higgs bosons and other new physics in scenarios beyond the standard model
No full textSearches are presented for Higgs bosons in scenarios beyond the Standard Model by the ATLAS and CMS experiments at the Large Hadron Collider. Searches for other exotic phenomena are also shown
Tests of QCD at colliders
No full textMeasurements at colliders can provide precision tests of perturbative QCD as well as leading the development of nonperturbative QCD techniques. This paper discusses precision tests of pQCD calculations made with data taken at ep, e (+) e(-), and hadron-hadron facilities. Measurements of the fragmentation process are also discussed in the context of nonperturbative models.</p
Agricultural soil moisture experiment: 1978 Colby (Kansas) data catalog and documentation
No full textThere are no author-identified significant results in this report
Measurements of correlated hadron production with the ATLAS detector
No full textThis is a talk for eQCD 2019
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