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

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 det...

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Autores principales:	Alconada Verzini, María Josefina, Alonso, Francisco, Arduh, Francisco Anuar, Dova, María Teresa, Monticelli, Fernando Gabriel, Wahlberg, Hernán Pablo, The ATLAS Collaboration
Formato:	Articulo
Lenguaje:	Inglés
Publicado:	2016
Materias:	Ciencias Exactas Física proton-proton collisions ATLAS detector
Acceso en línea:	http://sedici.unlp.edu.ar/handle/10915/86997
Aporte de:	SEDICI (UNLP) de Universidad Nacional de La Plata

id	I19-R120-10915-86997
record_format	dspace
institution	Universidad Nacional de La Plata
institution_str	I-19
repository_str	R-120
collection	SEDICI (UNLP)
language	Inglés
topic	Ciencias Exactas Física proton-proton collisions ATLAS detector
spellingShingle	Ciencias Exactas Física proton-proton collisions ATLAS detector Alconada Verzini, María Josefina Alonso, Francisco Arduh, Francisco Anuar Dova, María Teresa Monticelli, Fernando Gabriel Wahlberg, Hernán Pablo The ATLAS Collaboration Measurement of event-shape observables in Z → ℓ<sup>+</sup>ℓ<sup>-</sup> events in pp collisions at √s = 7 TeV with the ATLAS detector at the LHC
topic_facet	Ciencias Exactas Física proton-proton collisions ATLAS detector
description	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<sup>-1</sup> of proton-proton collisions recorded by the ATLAS detector at theLHCat 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 F-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 Herwig7. 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.
format	Articulo Articulo
author	Alconada Verzini, María Josefina Alonso, Francisco Arduh, Francisco Anuar Dova, María Teresa Monticelli, Fernando Gabriel Wahlberg, Hernán Pablo The ATLAS Collaboration
author_facet	Alconada Verzini, María Josefina Alonso, Francisco Arduh, Francisco Anuar Dova, María Teresa Monticelli, Fernando Gabriel Wahlberg, Hernán Pablo The ATLAS Collaboration
author_sort	Alconada Verzini, María Josefina
title	Measurement of event-shape observables in Z → ℓ<sup>+</sup>ℓ<sup>-</sup> events in pp collisions at √s = 7 TeV with the ATLAS detector at the LHC
title_short	Measurement of event-shape observables in Z → ℓ<sup>+</sup>ℓ<sup>-</sup> events in pp collisions at √s = 7 TeV with the ATLAS detector at the LHC
title_full	Measurement of event-shape observables in Z → ℓ<sup>+</sup>ℓ<sup>-</sup> events in pp collisions at √s = 7 TeV with the ATLAS detector at the LHC
title_fullStr	Measurement of event-shape observables in Z → ℓ<sup>+</sup>ℓ<sup>-</sup> events in pp collisions at √s = 7 TeV with the ATLAS detector at the LHC
title_full_unstemmed	Measurement of event-shape observables in Z → ℓ<sup>+</sup>ℓ<sup>-</sup> events in pp collisions at √s = 7 TeV with the ATLAS detector at the LHC
title_sort	measurement of event-shape observables in z → ℓ<sup>+</sup>ℓ<sup>-</sup> events in pp collisions at √s = 7 tev with the atlas detector at the lhc
publishDate	2016
url	http://sedici.unlp.edu.ar/handle/10915/86997
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Measurement of event-shape observables in Z → ℓ<sup>+</sup>ℓ<sup>-</sup> events in pp collisions at √s = 7 TeV with the ATLAS detector at the LHC

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