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

ATLAS Collaboration; Paul Newman

doi:10.1140/epjc/s10052-019-7162-0

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

ATLAS Collaboration, Paul Newman

Physics and Astronomy

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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 3.2fb-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.

Original language	English
Article number	666
Number of pages	31
Journal	European Physical Journal C
Volume	79
Issue number	8
Early online date	8 Aug 2019
DOIs	https://doi.org/10.1140/epjc/s10052-019-7162-0
Publication status	E-pub ahead of print - 8 Aug 2019

Bibliographical note

44 pages in total, author list starting on page 28, 14 figures, 1 table, submitted to Eur. Phys. J. C. All figures including auxiliary figures are available at https://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/STDM-2017-28/

Keywords

hep-ex

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10.1140/epjc/s10052-019-7162-0Licence: Creative Commons: Attribution (CC BY)

ATLAS_et_al_Measurement_of_distributions_sensitive_to_the_underlying_event_European_Physical_Journal_C_2019
© CERN for the benefit of the ATLAS collaboration 2019
Final published version, 1.25 MBLicence: Creative Commons: Attribution (CC BY)

https://link.springer.com/article/10.1140%2Fepjc%2Fs10052-019-7162-0Licence: Creative Commons: Attribution (CC BY)

Cite this

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

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 3.2fb-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.",

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N1 - 44 pages in total, author list starting on page 28, 14 figures, 1 table, submitted to Eur. Phys. J. C. All figures including auxiliary figures are available at https://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/STDM-2017-28/

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AB - 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 3.2fb-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.

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

Abstract

Bibliographical note

Keywords

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