Measurement of distributions sensitive to the underlying event in inclusive Z boson production in pp collisions at √s = 13 TeV with the ATLAS detector

Collaboration, ATLAS and Barton, A.E. and Bertram, I.A. and Borissov, G. and Bouhova-Thacker, E.V. and Fox, H. and Henderson, R.C.W. and Jones, R.W.L. and Kartvelishvili, V. and Long, R.E. and Love, P.A. and Muenstermann, D. and Parker, A.J. and Smizanska, M. and Tee, A.S. and Walder, J. and Wharton, A.M. and Whitmore, B.W. (2019) Measurement of distributions sensitive to the underlying event in inclusive Z boson production in pp collisions at √s = 13 TeV with the ATLAS detector. European Physical Journal D, 79 (8). ISSN 1434-6060

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Abstract

This paper presents measurements of charged-particle distributions sensitive to the properties of the underlying event in events containing a Z boson decaying into a muon pair. The data were obtained using the ATLAS detector at the LHC in proton–proton collisions at a centre-of-mass energy of 13 TeV with an integrated luminosity of 3.2 fb-1. Distributions of the charged-particle multiplicity and of the charged-particle transverse momentum are measured in regions of the azimuth defined relative to the Z boson direction. The measured distributions are compared with the predictions of various Monte Carlo generators which implement different underyling event models. The Monte Carlo model predictions qualitatively describe the data well, but with some significant discrepancies.

Item Type: Journal Article
Journal or Publication Title: European Physical Journal D
Uncontrolled Keywords: /dk/atira/pure/subjectarea/asjc/3100/3107
Subjects:
Departments: Faculty of Science and Technology > Physics
Faculty of Science and Technology > Engineering
ID Code: 136354
Deposited By: ep_importer_pure
Deposited On: 27 Aug 2019 10:00
Refereed?: Yes
Published?: Published
Last Modified: 13 Feb 2020 04:26
URI: https://eprints.lancs.ac.uk/id/eprint/136354

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