Measurement of the double-differential high-mass Drell-Yan cross section in pp collisions at √s = 8 TeV with the ATLAS detector

This paper presents a measurement of the double-differential cross section for the Drell-Yan Z/γ* → ℓ<sup>+</sup>ℓ<sup>-</sup> and photon-induced γγ → ℓ<sup>+</sup>ℓ<sup>-</sup> processes where ℓ is an electron or muon. The measurement is performed for...

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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
Hadron-Hadron scattering (experiments)
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/87012
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-87012
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
Hadron-Hadron scattering (experiments)
spellingShingle Ciencias Exactas
Física
Hadron-Hadron scattering (experiments)
Alconada Verzini, María Josefina
Alonso, Francisco
Arduh, Francisco Anuar
Dova, María Teresa
Monticelli, Fernando Gabriel
Wahlberg, Hernán Pablo
The ATLAS Collaboration
Measurement of the double-differential high-mass Drell-Yan cross section in pp collisions at √s = 8 TeV with the ATLAS detector
topic_facet Ciencias Exactas
Física
Hadron-Hadron scattering (experiments)
description This paper presents a measurement of the double-differential cross section for the Drell-Yan Z/γ* → ℓ<sup>+</sup>ℓ<sup>-</sup> and photon-induced γγ → ℓ<sup>+</sup>ℓ<sup>-</sup> processes where ℓ is an electron or muon. The measurement is performed for invariant masses of the lepton pairs, m<sub>ℓℓ</sub>, between 116 GeV and 1500 GeV using a sample of 20.3 fb<sup>-1</sup> of pp collisions data at centre-of-mass energy of √s = 8 TeV collected by the ATLAS detector at the LHC in 2012. The data are presented double differentially in invariant mass and absolute dilepton rapidity as well as in invariant mass and absolute pseudorapidity separation of the lepton pair. The single-differential cross section as a function of m<sub>ℓℓ</sub> is also reported. The electron and muon channel measurements are combined and a total experimental precision of better than 1% is achieved at low m<sub>ℓℓ</sub>. A comparison to next-to-next-to-leading order perturbative QCD predictions using several recent parton distribution functions and including next-to-leading order electroweak effects indicates the potential of the data to constrain parton distribution functions. In particular, a large impact of the data on the photon PDF is demonstrated.
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 the double-differential high-mass Drell-Yan cross section in pp collisions at √s = 8 TeV with the ATLAS detector
title_short Measurement of the double-differential high-mass Drell-Yan cross section in pp collisions at √s = 8 TeV with the ATLAS detector
title_full Measurement of the double-differential high-mass Drell-Yan cross section in pp collisions at √s = 8 TeV with the ATLAS detector
title_fullStr Measurement of the double-differential high-mass Drell-Yan cross section in pp collisions at √s = 8 TeV with the ATLAS detector
title_full_unstemmed Measurement of the double-differential high-mass Drell-Yan cross section in pp collisions at √s = 8 TeV with the ATLAS detector
title_sort measurement of the double-differential high-mass drell-yan cross section in pp collisions at √s = 8 tev with the atlas detector
publishDate 2016
url http://sedici.unlp.edu.ar/handle/10915/87012
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