Measurement of distributions sensitive to the underlying event in inclusive Z-boson production in pp collisions at √s = 7 TeV with the ATLAS detector
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A measurement of charged-particle distributions sensitive to the properties of the underlying event is presented for an inclusive sample of events containing a TeX -boson, decaying to an electron or muon pair. The measurement is based on data collected using the ATLAS detector at the LHC in proton–proton collisions at a centre-of-mass energy of TeX TeV with an integrated luminosity of TeX fb TeX . Distributions of the charged particle multiplicity and of the charged particle transverse momentum are measured in regions of azimuthal angle defined with respect to the TeX -boson direction. The measured distributions are compared to similar distributions measured in jet events, and to the predictions of various Monte Carlo generators implementing different underlying event models.
CitationEuropean Physical Journal C
PublisherSpringer Berlin Heidelberg
SubjectElementary ParticlesQuantum Field TheoryNuclear PhysicsHeavy IonsHadronsQuantum Field TheoriesString TheoryMeasurement Science and InstrumentationAstronomyAstrophysics and CosmologyNuclear Energy
Copyright CERN for the benefit of the ATLAS collaboration 2014. This article is published with open access at Springerlink.com