Measurement of event-shape observables in Z→ℓ+ℓ− events in pp collisions at √s=7 TeV with the ATLAS detector at the LHC. / The ATLAS collaboration.

In: European Physical Journal C: Particles and Fields, Vol. 76, 375, 06.07.2016, p. 1-40.

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Measurement of event-shape observables in Z→ℓ+ℓ− events in pp collisions at √s=7 TeV with the ATLAS detector at the LHC. / The ATLAS collaboration.

In: European Physical Journal C: Particles and Fields, Vol. 76, 375, 06.07.2016, p. 1-40.

Research output: Contribution to journalArticlepeer-review

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The ATLAS collaboration. / Measurement of event-shape observables in Z→ℓ+ℓ− events in pp collisions at √s=7 TeV with the ATLAS detector at the LHC. In: European Physical Journal C: Particles and Fields. 2016 ; Vol. 76. pp. 1-40.

BibTeX

@article{6c4d285cb086476384d9530f089f63dd,
title = "Measurement of event-shape observables in Z→ℓ+ℓ− events in pp collisions at √s=7 TeV with the ATLAS detector at the LHC",
abstract = "Event-shape observables measured using charged particles in inclusive Z-boson events are presented, using the electron and muon decay modes of the Z bosons. The measurements are based on an integrated luminosity of 1.1 fb−1 of proton–proton collisions recorded by the ATLAS detector at the LHC at a centre-of-mass energy s√=7 TeV . Charged-particle distributions, excluding the lepton–antilepton pair from the Z-boson decay, are measured in different ranges of transverse momentum of the Z boson. Distributions include multiplicity, scalar sum of transverse momenta, beam thrust, transverse thrust, spherocity, and FF -parameter, which are in particular sensitive to properties of the underlying event at small values of the Z-boson transverse momentum. The measured observables are compared with predictions from Pythia 8, Sherpa, and Herwig 7. Typically, all three Monte Carlo generators provide predictions that are in better agreement with the data at high Z-boson transverse momenta than at low Z-boson transverse momenta, and for the observables that are less sensitive to the number of charged particles in the event.",
author = "{The ATLAS collaboration}",
year = "2016",
month = jul,
day = "6",
doi = "10.1140/epjc/s10052-016-4176-8",
language = "English",
volume = "76",
pages = "1--40",
journal = "European Physical Journal C: Particles and Fields",
issn = "1434-6044",
publisher = "Springer New York",

}

RIS

TY - JOUR

T1 - Measurement of event-shape observables in Z→ℓ+ℓ− events in pp collisions at √s=7 TeV with the ATLAS detector at the LHC

AU - The ATLAS collaboration

PY - 2016/7/6

Y1 - 2016/7/6

N2 - Event-shape observables measured using charged particles in inclusive Z-boson events are presented, using the electron and muon decay modes of the Z bosons. The measurements are based on an integrated luminosity of 1.1 fb−1 of proton–proton collisions recorded by the ATLAS detector at the LHC at a centre-of-mass energy s√=7 TeV . Charged-particle distributions, excluding the lepton–antilepton pair from the Z-boson decay, are measured in different ranges of transverse momentum of the Z boson. Distributions include multiplicity, scalar sum of transverse momenta, beam thrust, transverse thrust, spherocity, and FF -parameter, which are in particular sensitive to properties of the underlying event at small values of the Z-boson transverse momentum. The measured observables are compared with predictions from Pythia 8, Sherpa, and Herwig 7. Typically, all three Monte Carlo generators provide predictions that are in better agreement with the data at high Z-boson transverse momenta than at low Z-boson transverse momenta, and for the observables that are less sensitive to the number of charged particles in the event.

AB - Event-shape observables measured using charged particles in inclusive Z-boson events are presented, using the electron and muon decay modes of the Z bosons. The measurements are based on an integrated luminosity of 1.1 fb−1 of proton–proton collisions recorded by the ATLAS detector at the LHC at a centre-of-mass energy s√=7 TeV . Charged-particle distributions, excluding the lepton–antilepton pair from the Z-boson decay, are measured in different ranges of transverse momentum of the Z boson. Distributions include multiplicity, scalar sum of transverse momenta, beam thrust, transverse thrust, spherocity, and FF -parameter, which are in particular sensitive to properties of the underlying event at small values of the Z-boson transverse momentum. The measured observables are compared with predictions from Pythia 8, Sherpa, and Herwig 7. Typically, all three Monte Carlo generators provide predictions that are in better agreement with the data at high Z-boson transverse momenta than at low Z-boson transverse momenta, and for the observables that are less sensitive to the number of charged particles in the event.

U2 - 10.1140/epjc/s10052-016-4176-8

DO - 10.1140/epjc/s10052-016-4176-8

M3 - Article

VL - 76

SP - 1

EP - 40

JO - European Physical Journal C: Particles and Fields

JF - European Physical Journal C: Particles and Fields

SN - 1434-6044

M1 - 375

ER -